baber/WOPTO huggingface dataset:
Patent GB-1468896-A (GB)
Title: Defoaming compositions
IPC: B01D19/04
Filed: 1974-06-07
Abstract: 1468896 Defoaming composition for black liquor SHINETSU CHEMICAL CO 7 June 1974 [8 June 1973] 25390/74 Heading C1C [Also in Division C3] In a defoaming agent in the form of an emulsion and comprising a defoaming composition emulsified in water with an emulsifier or in the form of a solution of a defoaming composition in a water-miscible solvent, e.g. dioxane, the defoaming composition consists essentially of (a) from 50-98 p.b.w. of at least one oily fluid selected from polyorganosiloxane fluids and hydrocarbon oils having a viscosity of from 50-50,000 cs. at 25‹ C., and (b) from 50-2 p.b.w. of a finely divided silica filler having a specific surface area of at least 100 m.<SP>2</SP>/g., which has been surface treated with from 0À1 to 100 p.b.w. per 100 p.b.w. of the finely divided silica filler, of a nitrogen-containing organosilicon compound of the formula (R 3 Si) a Z, where R is a monovalent hydrocarbon group having up to 12 C atoms, a is 1 or 2, and Z is a monovalent, when a is 1, or divalent, when a is 2, group selected from -NR<SP>1</SP>X, -ONR<SP>1</SP> 2 , -NX 2  and =NX, where R<SP>1</SP> is a monovalent hydrocarbon group of up to 12 C atoms and X is hydrogen or a monovalent hydrocarbon group of up to 12 C atoms. An aliphatic acid ester of sorbitol may be added as a wetting agent in an amount of from 0À1-5 p.b.w. per 100 p.b.w. of components (a) and (b). The polyorganosiloxane fluid may be represented by the average unit formula where R<SP>2</SP> is a monovalent hydrocarbon group having up to 7 carbon atoms and n is 1À9 to 2À1. The silica filler may be silica aerogel of fumed silica. The nitrogen-containing organosilicon compound may be a silylainine, an aminoxysilane or a disilazane. The hydrocarbon oil is preferably an aliphatic hydrocarbon having a boiling point exceeding 70‹ C., or a hydrocarbon oil derived from petroleum. The defoaming agent may be added to foamable liquids, e.g. black liquor from the alkali process of pulp production. In the examples defoaming compositions are prepared from: component (a): (1) a dimethylpolysiloxane fluid (100 cs.) alone or together with spindel oil; or (2) spindel oil; and component (b): finely divided silica of surface area 200-300 m.<SP>2</SP>/g. surface-treated with trimethylsilylamine, dimethylaminooxytriethylsilane or hexamethyldisilazane; and optionally sorbitol monolaurate as wetting agent. The defoaming compositions are either emulsified in water with emulsifiers or dissolved in dioxane and the resulting defoaming agents are added to aqueous solutions containing sodium oleate or polyoxyethylene nonylphenyl ether, or to the black liquor from an alkaline pulping process, for defoaming tests (Example 4).
Patent GB-205499-A (GB)
Title: Improvements in apparatus for taking cinematograph pictures in colours
IPC: G02B27/12
Filed: 1923-10-12
Abstract: 205,499. Nachet, C. Oct. 12, 1922, [Convention date]. Drawings to Specification. Colour kinematography; three-colour and like systems.-An optical system for producing kinematographic colour-records comprises an achromatic lens divided into three equal sectors to form prisms which are placed with their apexes at the centre behind an objective of large diameter and focal length. The images are produced through colour filters on a film at least 0.06 meter wide, two being side by side and the third one above them. The Specification as open to inspection under Sect. 91 (3) (a) refers also to a lens divided into two parts and to the use of separate lenses for projecting the images. This subject-matter does not appear in the Specification as accepted.
Patent GB-628821-A (GB)
Title: Improvements in or relating to resinous material
IPC: B01D15/04
Filed: 1946-08-26
Abstract: Resinous products are obtained by condensing epichlorhydrin and one or more alkylene polyamines in the ratio of at least 2 mols. of epichlorhydrin to one of polyamine, permitting the condensate to gel, curing the gel by heating and, if desired, granulating the gel, which may then be used for anion exchange. Polyamines specified are ethylene diamine, diethylene triamine, triethylene tetramine, and higher members of that series, including higher polyethylene polyamine mixtures, 1,3-diaminopropane, 1,3- or 1,4-diamino-n-butane, 1,5-diaminopentane, 1,6-diamino-n-hexane, 1,6-diamino - 3 - methyl - n - hexane, 1,10 - diamino-n-decane, and di-(3-aminopropyl)-amine. Strong alkali, preferably in a molar ratio to epichlorhydrin of 1 : 10 to 1 : 1 may be present; alkalis specified are sodium, potassium, lithium, and calcium hydroxides, and sodium and potassium carbonates. The condensation may be carried out in a solvent inert to the reactants, e.g. water, methanol, ethanol, and mono-methyl- or monoethyl-ethers of ethylene glycol.  Preferably the epichlorhydrin is added slowly to the polyamine, with cooling.  The preparation of the resins is illustrated by numerous examples of which examples 1, 3-9 describe the reaction of epichlorhydrin and tetrethylene pentamine in various proportions in presence of water and sodium hydroxide; example 2 describes the reaction in absence of sodium hydroxide, while in examples 11-20 diethylene triamine, di-(3-aminopropyl)-amine, a polyethylene polyamine mixture, trimethylene dibromide, ethylene dichloride, ethylene diamine, are substituted for the ethylene pentamine; in example 1, 1890 parts tetraethylene pentamine are mixed with 5500 parts water, while cooling to 3 DEG  C. and 2776 parts epichlorhydrin are added slowly over 30-70 minutes with continuous agitation.  The syrup is allowed to warm to room temperatures and 200 parts sodium hydroxide dissolved in water is added gradually.  The gel formed on warming is broken into pieces and cured in an oven at 95-105 DEG  C. for 17-18 hours. The Specification as open to inspection under Sect. 91 stated that other a -chloro-b  : g -epoxy compounds might be used as reactants. This subject-matter does not appear in the Specification.
Patent GB-1394780-A (GB)
Title: Process for encapsulating aspirin
IPC: A61K9/50
Filed: 1973-05-29
Abstract: 1394780 Encapsulating aspirin particles FUJI PHOTO FILM CO LTD 29 May 1973 129 May 1972] 25513/73 Heading A5B [Also in Division B8] Aspirin particles are encapsulated within a cellulose derivative, e.g. ethyl cellulose, by dispersing them in a solution of the cellulose derivative in a solvent thereof which is only partially miscible with water, adding the dispersion to water containing an organic solvent partially miscible therewith (e.g. that used to dissolve the cellulose derivative) and/or dissolved aspirin, and removing the organic solvent(s) by evaporation.
Patent GB-772990-A (GB)
Title: Improved process for applying pest control substances to seeds
Filed: 1955-09-06
Abstract: Grain and seeds are disinfected and/or protected from insects by a pest control substance which is deposited on them as a condensate together with water from a mixture of vapour of the substance and water vapour.  The vapour mixture may be produced by heating the substance together with water or by heating the substance in a stream of water vapour or water vapour and air. The substance may be separately vaporized at a temperature not less than the boiling point of water, the vapour thereof then being entrained in a stream of water vapour to form the vapour mixture.  The pest control substance may be ethyl mercuric chloride, phenyl mercuric acetate or gamma hexachlorocyclohexane.ALSO:A pest control substance i.e. one or more fungicides and/or one or more insecticides capable of volatilizing together with water vapour when heated with water, is applied to seeds by depositing the substance as a condensate together with water from a mixture p  of vapour of the substance and water vapour.  The vapour may be produced by heating the substance together with water or by heating the substance in a stream of water vapour or of water vapour and air or the substance may be separately vaporized at a temperature not less than the boiling point of water and the vapour thereof is then entrained in a stream of water vapour.
Patent GB-973915-A (GB)
Title: New basic azo dyes
Inventor: BAUMANN HANS
IPC: C09B29/033
Filed: 1962-07-04
Abstract: The invention comprises colour salts whose cations have the general formula <FORM:0973915/C4-C5/1> in which R1 and R2 represent hydrogen, substituted or unsubstituted alkyl, cycloalkyl or aralkyl groups and one of the radicals R1 and R2 may also be an aryl group and in which the indazole and indole ring may be further substituted other than with sulphonic acid groups and A1 and A2 are alkyl, cycloalkyl or aralkyl radicals and a process for the preparation thereof which comprises alkylating, aralkylating or cycloalkylating with appropriate agents azo dyes free from sulphonic acid groups of the general formula <FORM:0973915/C4-C5/2> Starting materials for use in the process are obtained by coupling diazotized 3-amino-indazoles with indoles not substituted in the 3-position. The dyes are reacted with such agents as methyl chloride, benzyl chloride, diethyl sulphate, methyl toluene sulphonate.  The dyes can be represented by the following structures in resonance <FORM:0973915/C4-C5/3> The colour salts are employed for dyeing mordanted cotton, leather and fibres, yarn and film of cellulose esters and ethers, polyamides, polyurethanes and polyesters and in particular polyacrylonitrile and copolymers containing acrylonitrile in yellow to red shades. Examples are furnished relating to the preparation of the dyes and their use in dyeing polyacrylonitrile fibre and copolymers of acrylonitrile and vinyl chloride.
Patent GB-584773-A (GB)
Title: Improvements in or relating to combined or convertible articles of furniture
IPC: A47B85/00
Filed: 1944-12-21
Abstract: 584,773. Tables convertible into settees. HAMP, R. Dec. 21, 1944, No. 25624. [Class 52 (iii)] [Also in Group XXV] In a convertible table, the top comprises a fixed portion 9 and one or more movable portions 1 which may be swung down and reversed to form a seat, the two end portions 9a serving as arm rests and the cross portion 9b serving as a stop for the movable portion when it is moved into its normal position, and also serving as a support for a back rest 11 which is folded flat against the movable portion when not in use. The movable portion 1 is supported on arms 8 pivoted to the end frames 5, and has a rectangular frame 3 to house the upholstery springs and locking mechanism, which consists of two bolts 12 and 13 pivoted at 17 and 18 respectively to a common actuating lever 14, one at each side of its pivot point 15, the lever 14 having a finger piece 14a for easy manipulation of the locking bolts. The movable portion 1 is gradually diminished in width from its front edge to avoid rubbing contact between the side edges 2a and the adjacent polished edges 9c of the table top, and hinged leaves 21 may be attached to the portions 9c of the table top to form side tables when the article is used as a settee.
Patent GB-276853-A (GB)
Title: Improvements in automatic change speed gears
IPC: F16H33/18
Filed: 1926-10-14
Abstract: 276,853. Aktiebolaget Spontan, and Ljungstrom, r. Oct. 14, 1926. Variable speed and reversing ratchet gearing comprises an element 6, Figs. 1 and 2, to which alternate positive and negative rotary impulses are imparted, and means for driving a shaft 9 therefrom forwardly or reversely at will comprising a reversible roller clutch A and a like reversible detent B. In the arrangement shown, planetary eccentric masses 7 carried by planet gears 3 in a driving fly-wheel 2 impart the impulses to the gear 6 in a yielding manner so that the speed transmitted varies automatically with the load. The gear 6 is secured to a sleeve 8 which envelops both the one-way devices. The clutch A drives a sleeve 10 fast on the shaft 9, and the detent B comprises a central stationary sleeve 11. There are clutch rollers 33 and detent rollers 34 arranged as shown in Fig. 6 between the sleeve 8 and flats 35, 36 on the sleeves 10, 11. The rollers are supported in two cages 37. Fig. 13, having partitions 39 between adjacent rollers carrying plate springs 38. Reversal of each grip device is effected by a relative turning of its cage 37, and the cages are operated in unison by the axial sliding of two coupled cam sleeves 42, 43, Fig. 1. Pins 49 pass through slots in the rotary sleeve 8 and are moved axially by a non-rotary cylinder 53 sliding within a fixed casing 12 and controlled by a lever 58 operated by a hand lever 60. The detent sleeve 11 is.preferably held fast normally by a gripping spring 69, Fig. 5, which acts through brake blocks 70. In the event of the control cylinder 53 being obstructed, the pivot 64, Fig. 1, of the lever 58 yields, and, through a linkage 66 and wedge 68, opens the spring 69 so as to free the sleeve 11 and disable the detent. Interlocking teeth 54 prevent the sleeve 8 from turning during the operation of reversing the drive. In a simpler construction, the spring brake 69 is replaced by a multiple-platel device. Lubrication is effected by oil passing in near the detent and passing radially outwards into the toothed gearing 6, 3.
Patent GB-477933-A (GB)
Title: Improvements in gas pendants
IPC: F23Q3/00
Filed: 1936-09-22
Abstract: 477,933. Gas pendants. TOWNSON & COXSON, Ltd., and DAVIS, N. Sept. 22, 1936, No. 25694. [Class 75 (iii)] In a pendant provided with a gas cook 1 operated by a cable 8 from a remote control, the pendant tube 2 is constructed of channel or like cross-section to provide a longitudinal housing for the cable, the housing being closed by a segmental cover 12, which frictionally grips the tube. As shown, the cable 8 is connected to a plunger 14 having a pin-and-slot connection 15, 16 with an arm 17 of the cock, and leads 9 for an electric igniting filament extend also through the housing. The cable may be operated by a snap-action switch controlling the igniter circuit, the switch being wired to a dry battery housed in a casing below it.
Patent GB-1471616-A (GB)
Title: Carburettor of the constant vacuum type
IPC: F02M7/22
Filed: 1974-06-10
Abstract: 1471616 Spray carburetters SOC NATIONALE DES PETROLES D'AQUITAINE and LES USINES LAPRADE 10 June 1974 [29 June 1973] 25712/74 Heading F1H The invention relates to a carburetter of the constant vacuum type i.e. a carburetter in which upstream of the main throttle valve controlled by the operator is provided an auxiliary throttle valve which opens automatically and progressively in proportion to the flow of air passing through the passage so as to maintain constant the vacuum between the two throttle valves; the auxiliary throttle valve controls a metering device which regulates the flow of fuel which is drawn in by suction through a passage having its outlet between the two throttle valves. The carburetter shown in Fig. 2 comprises a flow passage 7 in which is disposed a main throttle valve 8 and upstream thereof an auxiliary throttle valve 9 which is mounted in an offset manner and is loaded by a spring 11. A tube member having a variable orifice 15 extends from the float chamber 12 into the passage 7 between the two throttle valves, the orifice 15 being varied by an auxiliary movable needle 10 which extends through the tube and is actuated by the auxiliary throttle valve 9 through linkage. The variable orifice 15 is located on the axis of the flow passage 7 and the height of the orifice 15 above the fuel level 16 in the float chamber is not greater than 10 mm. In Fig. 3 the carburetter comprises a main passage 7a and an auxiliary passage 7b, the throttle 8 controlled by the driver being disposed in the  auxiliary passage 7b, and the auxiliary throttle 9 being disposed in the passage 7 upstream of the passages 7a, 7b; the auxiliary throttle 9 controls the needle 10 of the variable metering orifice 15 through linkage as before. A further throttle 17 is disposed at the inlet of the main passage 7a being arranged to open with a time lag in relation to the throttle 8; a throttle 19 is disposed at the inlet of the auxiliary passage 7b being mounted in an offset manner and being returned by means in dependence on for example, atmospheric pressure or temperature, engine temperature. The auxiliary throttle 9 is controlled also by the vacuum downstream of the throttle sensed at the point 21 and communicated to a pressure chamber 20. A dual carburetter is shown in Fig. 4 and comprises two passages 7a, 7b each having a main throttle 8a, 8b controlled by the driver, there being a single auxiliary throttle 9 in the common passage 7  upstream of-the two passages 7a, 7b; the auxiliary throttle 9 controls the needles 10a, 10b of the variable metering orifices 15a, 15b through two sets of linkage. Auxiliary throttles 19a, 19b are disposed at the inlets of the passages 7a, 7b the return force being dependent for example on atmospheric pressure or temperature, &c.
Patent GB-1116255-A (GB)
Title: Method and device for the measurement of impedance change by means of a measurement bridge
IPC: G01R17/10
Filed: 1965-06-17
Abstract: 1,116,255. Measuring bridge arrangements. POLITECHNIKA POZNANSKA. June 17, 1965 [June 17, 1964], No.25732/65. Heading G1U. In a bridge for measuring an impedance change #Z 2  which has disturbed the balance, the time needed from a given instant to restore the balance by varying a further bridge impedance Z 4  at a uniform rate is measured, the time being proportional to the change #Z 2 . The initial balance of the bridge is achieved by adjusting the resistor r and observing the bridge output, amplified at 2, on an indicator 3. Thereafter the change #Z 2  is introduced, and to commence rebalancing of the bridge, a start pulse is generated from the unit 5, which starts the operation of the impedance control unit 6, and the timing clock 7. When balance is achieved a zero detector 4 generates a stop pulse to stop the timing clock 7. The time recorded by the clock is proportional to #Z 2 .
Patent GB-482282-A (GB)
Title: Improvements in or relating to the bright-dipping of electrodeposited zinc coatings
IPC: C23F3/06
Filed: 1936-09-22
Abstract: Electrodeposited zinc coatings are brightened and passivated by dipping into dilute nitric acid solution, the solution containing not more than 1 per cent and preferably 0,1-0,6 per cent of acid. Specifications 472,995, 472,996, 473,147; and 474,449, [Group XXXVI], are referred to.
Patent GB-150746-A (GB)
Title: Improved process and apparatus for starting polyphase asynchronous electric motors
IPC: H02P1/30
Filed: 1920-09-07
Abstract: 150,746. Akt.-Ges. Brown, Boveri, et Cie. Sept. 8, 1919, [Convention date]. Dynamos and motors combined for transmitting power.-In a power transmision system comprising a variable-speed alternator and synchronous motors, the frequency of the alternator is varied, during the starting period, in accordance with the speed of the motors in such a manner that the maximum motor torque is exerted during this period. An increased torque may be produced by increasing the excitation of the alternator. An asynchronous motor M, driving a ship's propeller S, is coupled to a governor V the operation of which controls the current supplied to a solenoid R. The solenoid core operates in conjunction with a spring F to control bv means of a valve E the supply of steam to an engine D driving the alternator G.
Patent GB-978880-A (GB)
Title: Improvements in photographic materials
IPC: G03C1/10
Filed: 1963-06-28
Abstract: 978,880. Photographic silver halide material. E. I. DU PONT DE NEMOURS & CO. June 28,1963 [Aug. 29, 1962], No. 25898/63. Heading G2C. A photographic gelatino-silver halide emulsion or auxiliary layer contains at least 20% lactose based on the weight of the silver halide. The lactose increases the covering power of the silver halide and also acts as an antifoggant. Specifications 592,676, 600,058, 658,588, 658,826, 718,422, and 786,176 are referred to.
Patent GB-886592-A (GB)
Title: Improvements in or relating to paddle vats or reeler baths for the treatment of untanned leather
IPC: C14B1/00
Filed: 1960-07-26
Abstract: 886,592. Vats for treating leather. PAKKALA, L. July 26, 1960 [Aug. 20, 1959], No. 25903/60. Class 76. A paddle vat for the treatment of untanned leather with liquid is provided at the lower part with one or several openings which reach substantially over the entire length of the paddle vat and which can be closed in liquid-tight manner with doors hinged to the lower part and opening outwards, the opening being so wide across the bottom that if the door, or the doors if there are several of them, is opened, the contents drop out through said opening. In a preferred embodiment a vat 3 supported by pillars 13 is provided with a discharge opening reaching substantially over the entire length of the vat, the opening being closed by doors 1 and 2 which open outwards and are fixed with hinges 15. The doors are operated by means of levers 7 and 8 which are attached on the one hand to a rotatable shaft 5 fitted to bearing trestles 4 and on the other hand to the door by a rod 9 which is screw-threaded and adjustable by means of a screw adjustment 10.
Patent GB-337111-A (GB)
Title: Improvements in apparatus for constructing concrete floors
IPC: E04G11/48
Filed: 1929-08-26
Abstract: 337,111. Roos, H. W. April 1, 1929, [Convention date]. Moulding concrete floors in situ.-An apparatus for use in the construction of concrete floors comprises a plurality of shores each of which supports, by releasable means pivoting or sliding thereon, two or more of the shutter panels, and means for removing one shutter panel from between the adjacent panels. A shore 1, Fig. 2, has a metal head 2 with radially extending ribs 3. To an ear 5 of each rib 3 is pivoted a shutterpanel support or bracket 6 which is held in its operative or raised position by a releasable wedge 7 and supports, in its raised position, the adjacent corners of two shutter panels 13. The shutter panels and a platform 4 on the shore head 2 form a plane and uninterrupted support for the floor. One panel may be released by removing the two brackets which support it, while the remaining two brackets still support the other three shutter panels. To facilitate the withdrawal of a panel, the flanges thereof have vertical slots 18, 19, Figs. 8, 9, and 10, which are normally in vertical, but not horizontal, alignment with slots 19, 18, respectively, of adjacent panels. The withdrawing operation is carried out with the aid of a wedge 20 in the manner illustrated. In a modification, an L-shaped vertical post 43, Fig. 11, is secured to a shore head 41 and carries a top platform 44. Slidably mounted on the post 43 is a shutter-panel support 46 square in form and having inclined walls 47. Each wall 47 has a slot 48 and the corners of the shutter panels are adapted to be received by two adjacent slots. The slots are tapered so that the shutter panels wedge themselves one against the other. The support 46 is held in its upper operative position by a wedge 49. Fig. 1 (not shown) illustrates a telescopic shore for use with shutter-panel supports according to the invention. The Specification as open to inspection under Sect. 91 (3) (a) comprises also a floor constructing apparatus in which the shutter panels rest directly on the shore heads. The shore heads are square in shape and have two deep grooves at right-angles to each other extending from side to side in the form of a cross. The sides of the grooves incline inwardly and downwardly and receive the corners of four shutter panels which wedge themselves one. against the other to form a continuous plane surface for supporting the floor. In this construction, the shores must be removed in order to take down the shutter panels. This subject-matter does not appear in the Specification as accepted.