baber/WOPTO huggingface dataset:
Patent GB-265375-A (GB)
Title: Improved process for obtaining low boiling hydrocarbons and other products from distillation products derived from bituminous materials
IPC: C10G11/04
Filed: 1926-02-03
Abstract: 265,375. Braunkohlen-Produkte Akt.- Ges., Bube, K., and Erlenbach, E. Feb. 3, 1926. Hydrocarbons, cracking.-Distillation products from lignite, shale, coal, &c. such as producer tar, creosote, shale oil. soft pitch, &c., which contain phenols or other oxygen-containing compounds, are distilled in presence of heavy hydrocarbons such as heavy petroleum or gas oil in order to increase the yield of low-boiling hydrocarbons, and to obtain a residual gas rich in olefines, and a pitch or asphalt free from coke. The vapours from the still are heated to 400-650‹ C. and may be brought into contact with catalysts such as aluminium, magnesium or alloys containing these metals or iron, copper, nickel, &c.
Patent GB-285371-A (GB)
Title: Friction type shock absorber
IPC: F16F7/04
Filed: 1928-02-01
Abstract: 285,371. Compagnie d'Applications MÚcaniques. Feb. 14, 1927, [Convention date]. Vibration-dampers of the type in which frictional discs 6 are interposed between pivoted arms 4, 5 connected to the frame and axle of a motor vehicle are provided with an auxiliary load spring 12 by means of which the apparatus may be calibrated to give accurate readings of pressure whatever the wear which has taken place. The usual load spring 8 is disposed at one side and a rigid cup 7 enclosing the auxiliary spring 12 at the other, the parts being clamped together by the central bolt 3 and nut 10. A spring pointer 11, rotatable with the nut 10, is movable over markings on the cup 7. During assembly, the auxiliary spring 12 holds the rim of the cup away from the adjacent arm 5 until the nut 10 forces it down, the spring 12 at this point exerting a definite known pressure. During this operation the pointer 11 engages the stop 14 and causes the rotation of the cup. As soon as the cup stops, the pointer 11 springs over the stop 14 and is then opposite the numeral representing the pressure exerted by the auxiliary spring 12. Further rotation of the nut 10 loads the main spring 8 without any further rotation of the cup 7 and without applying any further load to the auxiliary spring.
Patent GB-657100-A (GB)
Title: Process for preparing condensation products of organo-silicon compounds with esters of hydroxy acids
IPC: C08G77/48
Filed: 1948-02-04
Abstract: One equivalent of castor oil or of an ester of tartaric or lactic acid is condensed with 0.35 to 3 equivalents of an organo-silicon compound of formula R2SiX2, where R is an alkyl radical having from 1 to 5 carbon atoms and X is a halogen atom or a methoxy or ethoxy group.  In examples: (1) diamyldiethoxysilane is heated with diethyl tartrate; (2) diethyldiethoxysilane with castor oil; (3) diethyldichlorosilane with castor oil.  The products may be used as plasticizers for nitrocellulose or ethyl cellulose or as hydraulic fluids either alone or in solution.  Those derived from tartaric or lactic acid esters may be used in baking enamels.  The Specification as open to inspection under Sect. 91 comprises also the use of compounds of the generic formula RySiX3, where y may be 1 or 2 and z may be 2 or 3, any remaining valence being occupied by hydrogen and includes examples of reaction between (1) monoamyl trichlorosilane and ethyl lactate; (3) and (5) monoamyl triethoxysilane and castor oil; (7) monolauryl triethoxysilane and castor oil.  This subject-matter does not appear in the Specification as accepted.ALSO:One equivalent of castor oil or of an ester of tartaric or lactic acid is condensed with 0.35 to 3 equivalents of an organo-silicon compound of formula R2SiX2 where R is an alkyl radical having from 1 to 5 carbon atoms and X is a halogen atom or a methoxy or ethoxy group.  In examples: (1) diamyldiethoxysilane is heated with diethyl tartrate; (2) diethyldiethoxysilane with castor oil; (3) diethyldichlorosilane with castor oil.  The products may be used as plasticizers for nitrocellulose or ethyl cellulose or as hydraulic fluids either alone or in solution.  Those derived from tartaric or lactic acid esters may be used in baking enamels.  The Specification as open to inspection under Sect. 91 comprises also the use of compounds of the generic formula RySiXz, where y may be 1 or 2 and z may be 2 or 3, any remaining valence being occupied by hydrogen, and includes examples of reaction between (1) monoamyl trichlorosilane and ethyl lactate; (3) and (5) monoamyl triethoxy silane and castor oil; (7) monolauryl triethoxysilane and castor oil.  This subject-matter does not appear in the Specification as accepted.
Patent GB-934374-A (GB)
Title: Improvements in magnetic particle couplings
Inventor: MCCONNEL WILLIAM ROGER
IPC: F16D37/02
Filed: 1960-04-24
Abstract: 934,374. Electromagnetic couplings and brakes. S. SMITH & SONS (ENGLAND) Ltd. Jan. 25, 1961 [Jan. 29, 1960], No. 3219/60. Class 35. A magnetic particle coupling, by which a driven shaft 18 can be selectively coupled to either a driving member 13 or to a stator member 1, comprises respective windings 11, 12 in stator member annular channels 4, 8 to provide when energized alternative toroidal magnetic flux paths 24, 25 which, due to the saturation causing grooves 7, 17, link with braking and driven members 19, 20 fixed to the shaft 18. Magnetic powder particles are disposed in the gap between driving member surface 16 and driven member 20 and between channel wall 6 and braking member 19, so that depending on which winding is energized flux passing through the associated gap semi-solidifies the powder. Labyrinth seals 21 confine the particles to the peripheral regions of members 19, 20. The magnetic members are of mild steel. Specification 649,553 is referred to.
Patent GB-967000-A (GB)
Title: Method of deuterium enrichment of hydrogen or for the production of heavy water
Inventor: WETZEL KLAUS
IPC: C01B4/00
Filed: 1961-01-27
Abstract: In a dual-temperature hydrogen/water isotope exchange system in the presence of a catalyst, for the deuterium enrichment of hydrogen or the production of heavy water, a stage of isotope exchange takes place between liquid water and hydrogen in counterflow in a cold first column and after vaporization of the water issuing from the cold column the steam thus formed is passed into a second column in concurrent flow with hydrogen for a further stage of isotope exchange.  The cold column preferably operates at a temperature below 100 DEG  C., e.g. 20-50 DEG  C., and the hot column preferably between 300 DEG  and 700 DEG  C., and the two columns may form part of a cascade system of such columns.  In the cold column the catalyst is suspended in the liquid water, and in the hot column is either in the form of a fixed bed or is maintained in suspension by the whirling motion of the hydrogen and steam. Suggested catalysts are nickel on chromium oxide or platinum on active carbon, and the catalyst from the cold column may, after evaporation of the water in which it is suspended, may be returned to the column, <PICT:0967000/C1/1> with or without regeneration.  Referring to the drawing, liquid water leaving the bottom of the cold column 1 is evaporated in 2, the separated catalyst returning via 5 to the top of the cold column, and the so-formed steam then undergoes isotope exchange in concurrent flow with hydrogen in hot column 3, the hydrogen originating from the top of cold column 1. The mixture of hydrogen leaving 3 is separated in condenser 4, the impoverished water fraction being discarded or fed to a lower stage of a cascade system, and the hydrogen being returned to the lower end of column 1, where it undergoes countercurrent isotope exchange with liquid water. Part of this hydrogen may be fed to a higher stage of a cascade system.  Enriched water may also be removed between columns 1 and 3.
Patent GB-469902-A (GB)
Title: Improvements in cases for electrical apparatus
IPC: H02B1/06
Filed: 1936-02-04
Abstract: 469,902. Hinges. BILL, R. W., and BILL, R. A. Feb. 4, 1936, No. 3299. [Class 65 (ii)] [Also in Groups XXXVI and XVII] In a box for electrical apparatus, the cover C, having a slot S and hole H, is attached to the base by placing the upper wall with its hole H over the pin P<1> on the batten B<1> of the base. The lower wall is then moved so that the pin <p2> enters the slot S and is retained therein by some suitable device K<1>, such as a hook, ferrule or plate. Alternatively, the pin P<2> may be flattened and work in a key-hole slot ; also a second slot may be provided instead of the hole H.
Patent GB-164685-A (GB)
Title: An improved negative electrode for electric accumulators
IPC: H01M4/66
Filed: 1920-02-10
Abstract: 164,685. Pouchain, A. Feb. 10, 1920. Electrodes. - In a secondary battery in which zinc is deposited during the charging process and dissolved during discharge, the support for receiving the zinc deposit is made of silver and may be in the form of a perforated or channelled plate.
Patent GB-920531-A (GB)
Title: Improvements in or relating to nuclear reactors
Inventor: KNIGHTS HERBERT CHILVERS
IPC: E04H7/20
Filed: 1958-02-04
Abstract: 920,531. Reactors. UNITED KINGDOM ATOMIC ENERGY AUTHORITY. Feb. 3, 1959 [Feb. 4, 1958], No. 3578/58. Addition to 847,945. Class 39 (4). A restraint for a graphite moderator and reflector structure comprises a series of shoes 5 which are loaded by bellcranks 6 pivoted on the inside of a containing vessel 4 and joined by links 9. The load is provided by compression springs 10 acting between flanges 11 on the links and thrust plates 12 welded to the vessel. The cranks bear on the shoes through rollers 15 in cup-like inserts in the shoes and moderator.
Patent GB-666579-A (GB)
Title: A new or improved sheet metal container
IPC: B65D25/28
Filed: 1949-02-10
Abstract: 666,579. Making hollow-ware. WHALLEY, W. Feb. 2, 1950 [Feb. 10, 1949], No. 3637/49. Class 83 (ii). [Also in Group XVII] A hollow-ware pan 2 is made by welding handles 8 to strips 6 to form a cradle to receive the pan 2 which is welded thereto at 10 and/or at the base or side walls. The handles may also be welded at 10 to the rim 4 which may be strengthened by wire.
Patent GB-284977-A (GB)
Title: Improvements relating to amplifiers for electric circuits
IPC: H04B3/14
Filed: 1928-02-06
Abstract: 284,977. Soc. industrielle des TÚlÚ- phones. Feb. 5, 1927, [Convention date]. Repeating and amplifying systems designed to compensate for the amplitude and phase distortion due to an input nr output line and to the electrical characteristics nf instruments &c. in the line, have an impedance network Q, Fig. 2, connected between a pair of thermionic valves V1, V2. The constitution of the network depends on the counter-distortion to be effected, and the ends of the network are closed by equal impedances, each preferably equal tn the characteristic impedance of the network. On the input side, the impedance includes the plate-filament resistance of the first valve V1 together with block condensers C, C' and an additional impedance Z', which may be divided into two equal sections. On the output side, the impedance includes similar elements, and the grid-filament resistance of the second valve V2. On the output side of the second valve, an impedance Z" is placed in series with the valve and with condensers C<11>, C<111>, so as to make the total impedance at this end of the line e, f equal to the impedance of the line itself when closed by the distant terminal receivers. The network Q is preferably in the form of one or more unbalanced bridges, Fig. 4, with impedances X<1>1. X<1>2 forming opposite sides and with the input and output connections at diagonally opposite points. The Specification includes a mathematical discussion of the problem, and gives formulµ for the determination of X<1>1 and X<1>2, the various elements being so designed that the complex attenuation co-efficient of the whole system, comprising the lines, repeaters, and inter-valve network, is of the form a + ibw, where a and bare independent of the frequency factor w, with the result that the amplitude ratio (dependent on a), and the velocity of propagation (dependent on b), are the same for all frequencies.
Patent GB-1134936-A (GB)
Title: Anthraquinone dyes, their production and use
Inventor: GUNTHARD JACQUES
IPC: C09B1/30
Filed: 1966-01-27
Abstract: 1,134,936. 2 - Benzyl - 4 - alkyl - cyclohexylamine and intermediates therefor. WESTMINSTER BANK Ltd. 27 Jan., 1966 [11 Feb., 1965; 7 Jan., 1966], No. 3725/66. Addition to 1,050,272. Heading C2C. [Also in Division C4] Compounds of the formula wherein R represents a C 1 -C 12  alkyl radical, are obtained by condensing an alkylcyclohexanone and benzaldehyde in aqueous solution, hydrogenating the resulting 2-benzalalkyl-cyclohexanone in the presence of Raney nickel, giving a 2-benzyl-alkyl-cyclohexanone which is then aminated by reducing with H 2 /NH 3  and Raney nickel to give the required compound.
Patent GB-1094205-A (GB)
Title: Process for the preparation of amino-acid surface active agents
Inventor: KALOPISSIS GREGOIRE
IPC: C09K23/00
Filed: 1966-01-27
Abstract: Compounds of the formula <FORM:1094205/C2/1> wherein R1 and R2 are C1- 4 alkyl groups or, together with the nitrogen atom to which they are linked, constitute a heterocyclic group, c  is 2-5, R3 is an aliphatic hydrocarbon residue of 10-18 carbons and M is sodium, potassium or ammonium, are obtained by reacting a meleamic acid salt of the formula <FORM:1094205/C2/2> with a primary fatty amine of the general formula R3-NH2 in a non-alcoholic aqueous medium.  The reaction is suitably effected at 65 DEG  C. and the products have surface-active properties.
Patent GB-757067-A (GB)
Title: Improvements in and relating to operating circuits for electric discharge lamps
IPC: H05B41/22
Filed: 1949-02-11
Abstract: 757,067. Discharge lamps. BROWN, R. Feb. 13, 1950 [Feb. 11, 1949], No. 3826/49. Drawings to Specification. Class 39 (1). [Also in Group XXXV] The starting of a fluorescent lamp having filamentary electrodes and supplied from a transformer connected to the supply through a resistive ballast (see Group XXXV) is facilitated by two narrow and parallel metal strips of U- shape of for example 1 mm. wide and half an inch apart adhering to or deposited along the whole length and outside of the lamp envelope or a single strip may be used. Alternatively the edges of a metal channel accommodating cables to the electrode terminals may be used in place of the strips. The strips or their equivalent are connected to a supply lead through a resistance or condenser or both. Under conditions of high humidity starting is also facilitated by coating the exterior of the envelope with " Sil Aneal" " (Registered Trade Mark). A transparent coating of cerium and/or thorium oxide may be applied on the exterior or interior surface of the lamp envelope on metal strip to facilitate starting. The lamps can have internal auxiliary electrodes and a filling of krypton. Specification 757,080, [Group XXXV], is referred to.
Patent GB-1210473-A (GB)
Title: Louvre shields for sliding sash windows
Inventor: CARTER GORDON
IPC: E06B7/10
Filed: 1968-01-24
Abstract: 1,210,473. Louvre shields. G. CARTER. 20 Jan., 1969 [24 Jan., 1968], No. 3846/68. Heading E1J. [Also in Division F4]  A louvre shield of metal or other rigid material which may be secured to or made integral with a sliding window frame comprises an elongated tubular structure formed of two interengaging channel section parts la, 1b each having one leg formed with a recess R and the other leg being a mating fit in the recess R of the other part, the oppositely facing major faces of the structure being formed with a plurality of louvres 2 so disposed that air may pass across the structure via the louvres in an indirect path to provide a ventilation path and a weather shield. The louvres may be fixed and adjustable as to the degree of opening and the louvres on one major face may be staggered with respect to the louvres on the other major face, and they may be formed by slitting the 'faces and deforming the material.
Patent GB-1125914-A (GB)
Title: Methods and apparatus for the removal of metal by etching
IPC: H05K3/06
Filed: 1966-01-28
Abstract: 1,125,914. Etching. CHEMCUT CORP. 28 Jan., 1966 [15 Feb., 1965], No. 3861/66. Heading B6J. [Also in Division G3] Continuous etching apparatus for removing metal from articles carried on a variable-speed conveyer comprises means responsive to the removal rate to decrease the speed of the conveyer when the etch rate decreases. Articles 25b, 25c, are conveyed through the etching zone, the line 106 indicating the transition between the unetched and etched conditions. As a result of the opacity of unetched article 25b, photo-senser 76 of device 70c is in darkness so that relay 114c does not respond, whereas the photo-senser of the next successive device 70d is illuminated to energize relay 114d. Rotary solenoid 118 is then so positioned that the conveyer motor 50 runs at a steady speed. If an article has already made the transition from the under-etched condition before passing the device 70c, however, relay 114c responds to advance the solenoid 118 by one step in the speed-advancing direction. If the transition line 106 moves to the right of device 70d, the conveyer motor 50 reduces speed by one step. When the speed is reduced, for example, the sustained attack of the etchant upon the articles causes the division line to shift back to the desired station between the devices 70c and 70d. Relay 114b associated with device 70b provides higher speed operation than the relay 114c, whilst relay 114e affords a lower speed than the relay 114d. In conditions of extreme over-etching or under-etching relays 114a or 114f respond to shut down the conveyer motor and pumps for the etchant. Transistory false signals are rejected by differentiator circuits 110. In a modification, the photo-electric sensers are replaced by conductivity-measuring devices each comprising a pair of brushes adapted to engage the articles to be etched. Copper on the under-etched articles completes the circuit between a pair of brushes, whilst, with an etched article, the circuit between a pair of brushes is virtually opencircuited and the associated relay is not energized. In another arrangement, a transparent plastic device of triangular form for collecting the light from a lamp has an extended surface co-operating with the passing articles and is associated with a photo-senser. The latter detects the average light along a strip of the articles being etched and controls the conveyer speed through an amplifier circuit in which the output of the photo-senser is balanced against a reference potentiometer.
Patent GB-1340174-A (GB)
Title: Fluid filter
IPC: B01D46/10
Filed: 1972-01-27
Abstract: 1340174 Making gas filters AMERICAN AIR FILTER CO Inc 27 Jan 1972 [1 Feb 1971] 3892/72 Heading B3A [Also in Divisions B1-B2] In making a rectangular gas filter (Fig. 4, not shown) metal strip is fed from roll 21 under die 26 which expands alternate sections of strip leaving others solid, slitter 27 cuts off lengths of strip each comprising two solid and two expanded sections and rams 31, 32, 33 and 37 fold each length first into an open tray with an upstanding side, then into a box like frame (Figs. 3, 4). Glass fibre filter medium may be added by ram 34 between the folding stages as shown or before folding begins. Means 41 (Fig. 8) finally add impervious end caps (2, 11) to close the open ends of the frame. In a modification (Figs. 5, 6, not shown) one expanded section is extended sideways to provide margins (12) which are folded up and subsequently covered by end caps (2, 11).
Patent GB-140059-A (GB)
Title: Improvements in the method of evaporating liquors and apparatus thereof
IPC: B01D1/28
Filed: 1920-02-09
Abstract: 140,059. Metallbank und Metallurgische Ges. March 13, 1919, [Convention date]. Vapours, utilizing for effecting further evaporation.-In evaporating liquids by means of the hot compressed vapour, the uncondensed vapour leaving the heating system is returned to the evaporator either directly or through the compressor. In the arrangement shown, vapour is drawn from the evaporator b by a compressor d returned to the heating-system through a pipe e. The condensate and any uncondensed vapour leave the heating-system by a pipe g and the condensate is removed through a pipe h. Uncondensed vapour is conveyed by a pipe i furnished with a regulating-valve k to the evaporator b or to the suction side of the compressor d. A pipe l may lead to the atmosphere or to a condenser and air pump.
Patent GB-390295-A (GB)
Title: Improvements in weft pile curtain materials
IPC: D03D39/10
Filed: 1932-02-10
Abstract: A velvet or velveteen weft pile curtain fabric is treated during the usual liming operation with a size or stiffening material such as olive oil soap and a gum obtained from the germ of a lotus bean and is then passed over steam heated cylinders to produce oxidation. This treatment causes the weft to stick to the warp to prevent movement during the operation of cutting.  Reference has been directed by the Comptroller to Specifications 8571/84, 11632/84, 14237/91, 13873/92, [all in Class 142, Weaving &c.], and other documents.
Patent GB-158847-A (GB)
Title: Improvements in and relating to stop-motions for combing machines
IPC: D01G31/00
Filed: 1921-02-02
Abstract: 158,847. Jewett, C. E., and Fitzgerald, F. Feb. 2, 1920, [Convention date]. Stop-motions. - In a stop-motion of the kind described in Specification 147,202, for a circular combing machine, a device is added which will stop the machine if the belt driving the trumpet guide should break. A rocker arm A, Fig. 1, is pivoted on the top of the frame F. One end rests against the belt D, and the other is provided with a finger 72, adapted when the arm falls over on breakage of the belt, to engage under a nose 73 on the rod K, and raise the rod to release the trigger mechanism holding the shipper rod of the main drive belt fork. The arm A may carry a contact plate B, to engage the belt, supported by a boss 83, Fig. 5, carried by a rod 82 screwed into a weight S adjustably secured to the arm A. The arm A may be drawn over by a spring.
Patent GB-919421-A (GB)
Title: Improved rate indicating device
Inventor: SHERIDAN VERNON ARTHUR
IPC: G01P3/48
Filed: 1959-02-05
Abstract: 919,421. Frequency measurement; semiconductor pulse Circuits. B.P.L. (INSTRUMENTS) Ltd. Nov. 18, 1959 [Feb. 5, 1959; May 26, 1959], Nos. 4070/59 and 17923/59. Classes 40 (5) and 40 (6). [Also in Groups XXXVIII and XL (b)] A rate meter particularly for use in the determination of the shaft speed of an I.C. engine (see Groups XXXVIII, XL (b)) comprises a mono-stable circuit consisting of transistors T1, T2 having collector and base interconnected by a capacitor C1 and resistor R2 respectively characterized in the provision of an R.F. input filter C2L1 to filter out all but the required input pulses. The circuit is triggered at each input pulse derived from the sparking of the engine so that transistor T1 becomes conducting and C1 is charged, thus causing a pulse on the base of transistor T2 to cut the latter off, when the capacitor C1 discharges through resistor R2, thus returning the mono-stable circuit to its original condition. The output from the mono-stable circuit derived across capacitor C3 is rectified and the mean current measured in a meter M, said mean current being proportional to the rate of the input pulses. In order to prevent the mono-stable circuit from being triggered by ignition pulses in the battery circuit, a further filter L2, C4 is included in the circuit.
Patent GB-1375076-A (GB)
IPC: F16K5/02
Filed: 1972-01-28
Abstract: 1375076 Valves R C WALTON and A H WALTON 28 Jan 1972 4078/72 Heading F2V A plug valve comprises a tapered valve body 18 formed of, or coated with, a plastics material, having a threaded stem 24 engaged by a wing nut 28 supported by a ball or roller bearing 42 having seals 44 at its sides. The tapered body 18 can be drawn tighter into a correspondingly tapered cavity 16 by tightening the nut 28 up to a limit set by an adjustable abutment screw 29. The surface of cavity 16 may be coated with plastics material.