baber/WOPTO huggingface dataset:
Patent GB-1025377-A (GB)
Title: Polymerisation of fatty acids
IPC: B01J23/04
Filed: 1964-09-03
Abstract: Lithium-magnesium silicate, for use as a polymerization catalyst for unsaturated fatty acids, is prepared either by heating an aqueous dispersion of a synthetic magnesium silicate in the presence of a lithium compound or by refluxing silica, magnesia and a lithium compound in water at atmospheric or elevated pressures.  Organic or inorganic lithium compounds alone or in admixture, e.g. lithium halides, carbonate or hydroxide and lithium acetate, propionate, caproate, and stearate are specified. Examples describe the preparation of many catalyst compositions using lithium fluoride, chloride, carbonate and acetate with magnesium chloride, hydroxide and silicate, silicon dioxide, and sodium silicate.  Li/Mg ratios of up to 1.5 and Si/Mg ratios in excess of 4 may be used.ALSO:Fatty acids (8-24 C) are polymerized by heating in the presence of a synthetic lithium-magnesium silicate catalyst.  The catalyst is prepared either by heating the synthetic magnesium silicate prepared by conventional methods in the presence of the lithium compound, or by reacting a dispersion of silica, magnesium oxide and lithium compound, e.g. by refluxing.  Lithium salts of inorganic or organic acids and lithium carbonate or hydroxide are mentioned, and lithium nitrate alone is excepted. Acids, ethylenically and acetylenically unsaturated are listed and mixtures derived from natural oils may also be used.  Tall oil fatty acids are used in examples.  A temperature range of 160-280 DEG  C. may be used, and the product is cooled and filtered.ALSO:Catalysts for the polymerization of unsaturated fatty acids comprise synthetic lithium-magnesium silicate prepared either by heating an aqueous dispersion of a synthetic magnesium silicate in the presence of a lithium compound or by reflexing silica, magnesia and a lithium compound in water at atmospheric or elevated pressures.  Organic or inorganic lithium compounds alone or in admixture e.g. lithium halide, carbonate or hydroxide and lithium acetate, propionate, capoate and stearate are specified. Examples describe the preparation of many catalyst compositions using lithium fluoride, chloride, carbonate and acetate with magnesium chloride, hydroxide and silicate, and silicon dioxide and sodium silicate or silicic acid.  Li/Mg ratios of up to 1.5 and Si/Mg ratios in excess of 4 may be used.
Patent GB-324756-A (GB)
Title: A carrying handle for cases, bags and the like
IPC: A45C13/26
Filed: 1928-12-07
Abstract: 324,756. Pearson, A. E. Dec. 7, 1928. Handles. - A carrying handle for cases, bags, &c., of the non-extensible resilient type is connected to the casing by loops 3, formed as integral parts of the flat spring-metal lining 1, which receive anchoring members 6, preferably of the form shown in Fig. 2 with a bridge 6<b> of circular section, rigidly attached to the casing. The inner end of each loop is preferably stepped at 5 to form a firm abutment for the bridge 6b. As a modification the loop 3 may be formed at one end only while the other loop merely pivots about the member 6. The handle may be covered with leather in the manner shown in Figs. 1 and 3, a. leather strip 2 completely embracing the core by being stitched down the edges at 8 but being cut away at 9 to allow free sliding in the bridge members.
Patent GB-872541-A (GB)
Title: Process for the manufacture of naphthalene of hot-pressing quality
IPC: C07C7/14
Filed: 1957-11-21
Abstract: In the production of hot pressing quality naphthalene from naphthalene oil using continuously operating screw presses wherein the expressed oil discharged through the wall of the press is collected in at least two fractions of which that having a high naphthalene content obtained towards the end of the pressing is recycled to the initial material, the fraction formed at the beginning is split into two parts one of which is rejected while the other is distilled, top and bottom fractions being rejected and a middle, naphthalene fraction being recycled to the initial material. The amount of the first oil fraction which is rejected should be such that the amount of thionaphthene rejected is removed from the cycle to give an end product of the desired solidification point.  Part of the second expressed oil fraction may also be distilled with the other, e.g. by introducing to the top of the column as a reflux. Specifications 766,371 and 812,725 are referred to.
Patent GB-1213565-A (GB)
Title: A device for stopping a sewing machine with its needle in a pre-determined upper position and for cutting the sewing threads
IPC: D05B69/22
Filed: 1968-07-30
Abstract: 1,213,565. Sewing machines. NECCHI S.p.A. 30 July, 1968 [29 Nov., 1967], No. 36345/68. Heading D1G. A device for stopping a sewing machine with the needle in a predetermined upper position and the sewing threads trimmed comprises needle position control discs 24, 25, 26, 27 on the machine shaft 20 which is coupled by a belt to a movable clutch disc 54 normally spring-biased against a rotary friction disc 41. The letter is coupled via reduction gearing and an electromagnetic clutch 52 and brake 53 to the consttently-revolving shaft of an electric motor driving a rotary friction disc 40. Disc 41 is coupled by a bell crank lever 57 to a treadle 60. As shown, the machine is stationary with the needle down and a brush 73 correspondingly contacting the insulating segment of disc 24, while relays 68, 69 are de-energised with their respective contacts 71, 77, 74 and 70, 76, 78 in the positions shown. When the toe of pedals 60 is partly depressed, disc 54 remains engaged with disc 41 and one arm of lever 57 closes a microswitch 65 to energise relay 68. Contact 74 then shifts to de-energise brake 53 and to energise clutch 52 and the machine runs at slow speed, relay 68 remaining energised via contact 70, the left hand contacts of a microswitch 36 and the contact 71. When the toe of treadle 60 is fully depressed, disc 54 is shifted into engagement with disc 40 for driving the machine at high speed. When the treadle is released, the machine runs at slow speed until brush 73 contacts the insulating segment of disc 24 to stop the machine. If a knee pad 39 is now depressed, microswkch 36 is actuated to close its right hand contacts to energise relay 68 via disc 75, whereby the machine runs slowly until the insulating segment of disc 25 rotates through 270 degrees to engage brush 75 to stop the machine with the needle raised. If it is desired to stop the machine with the needle raisd and simultaneously to sever the thread, pedal 60 is released when the machine is running at high speed and the heel of the pedal is then depressed, whereby lever 57 is deformed and its other arm closes microswitch 64. In consequence, when the machine has slowed down sufficiently, relay 69 is energised via a narrow conducting segment of disc 27. Relay 68 is then energised via contact 70 and disc 25, and relay 69 remains energised via the contact 76, while contact 78 energises solenoids 29 and 32 for respectively releasing thread tension and severing the thread. After energisation of solenoid 69, the machine rotates through 270 degrees until the insulating segment of disc 25 engages brush 75.
Patent GB-1205011-A (GB)
Title: Container made from sheet material
Inventor: MEADOWS CHRISTOPHER JOHN
IPC: B65D5/62
Filed: 1966-08-15
Abstract: 1,205,011. Making cartons. ROBINSON WAXED PAPER CO. Ltd. 13 Nov., 1967 [15 Aug., 1966], No. 36367/66. Headings B5D and B5N. [Also in Division B8] A carton is erected by bending a blank, comprising a relatively flexible web 3 reinforced at its centre by an inner panel 2 of less flexible material, round a mandrel 4. The bottom of the carton is then closed by means not further described. The web 3 may be of cellulose film with a heat sealable coating on both sides, and the reinforcing panel 2 may be heavyweight paper which is wax laminated to the film and wax coated on the surface exposed to the carton contents. The web 3 may be closed at the carton end by heat- or cold-sealing, or by glueing.
Patent GB-362161-A (GB)
Title: Improvements in or relating to devices for producing audible signals
IPC: G10K9/15
Filed: 1930-12-04
Abstract: 362,161. Devices for producing audible signals. MONNOT, J. F. and KLAXON, Ltd., 36, Blandford Street, Portman Square, London. Dec. 4, 1930, No. 36661. [Class 13.] The contacts J for making and breaking the circuit of an electromagnet B which actuates a diaphragm D to produce an audible signal are carried one on a flexible member G adapted to be moved by an actuating member connected to the diaphragm and the other on a comparatively rigid member F adjustable relatively to it. As shown, the flexible arm G and rigid member F are both clamped at one end by a screw E<1> to a boss E on a member A which houses the electromagnet B. The other end of the member F is adjustably held on the member A by a screw F<1> and lock-nut F<2> and the free end of the member G rests on the rear end of the actuating member K which passes through an aperture in the member F and carries an armature K<1> by which the diaphragm D is actuated. Adjustment of the member F by deflection towards the diaphragm enables the arm G to move by its own resiliency in the same direction, while movement of the member F away from the diaphragm D is effected by its own resiliency and carries the arm G with it.
Patent GB-764205-A (GB)
Title: Improvements in domestic irons
IPC: D06F75/22
Filed: 1954-12-20
Abstract: 764,205. Hand-irons. McLAUGHLIN, J. C. Dec. 20, 1954, No. 36833/54. Class 138 (2). A domestic iron comprises a water reservoir inside a housing 2 affixed to a sole plate 1 and accommodating heating means, the housing carrying a pump 10 for generating a store of compressed air in the reservoir, and an escape conduit 18 for the water communicating with means for spraying water on to the work close to the iron. The spray means may comprise a plurality of restricted orifices 13 in pipes 14, and 17, 17a in pipes 16. A valve 21 controls the supply of water through pipes 27 to the pipes 14, and through pipes 33 to the pipes 16. The valve 21 is rotatable under the control of a knob located near the front end of the handle and has a T-shaped passageway enabling the pipes 27, 33 to be selectively or both connected to the reservoir. The valve 21 has similar passages for air, enabling compressed air to be supplied from the reservoir to air pressure supply tubes (as 29) extending alongside the tubes 14, 16 and communicating therewith through restricted orifices to assist in spraying the water through the orifices 13, 17, 17a. In a modification the orificed tubes are replaced by a rose such as that illustrated in Figs. 7, 8 (not shown) which may be embodied in the nose or base of the sole plate.
Patent GB-1502649-A (GB)
Title: Photolithographic silver salt diffusion transfer receptor sheet
IPC: B41N1/08
Filed: 1975-09-08
Abstract: The photolithographic receptor material for producing images by diffusion transfer is coated with a layer of hydrophilic colloidal silica on a support. This layer of colloidal silica contains silver-precipitating nuclei which result in deposition of the silver in the image areas in the production of a printing plate made from this photolithographic receptor material. In the photolithographic receptor materials described here, the layer of colloidal silica is built up from touching spherical particles which are chemically bonded to one another at the points of contact. The spherical particles comprise two types of particle of different particle size, the first type of particle being 2.5 times larger than the second type of particle. This lattice of hydrophilic silica is ideally suited to the production of lithographic plates with silver image, since not only is optimum silver deposition at the surface ensured, but to a certain extent silver can also be deposited within the silica lattice, and the resistance of the plate to abrasion and impression is thus increased.
Patent GB-940690-A (GB)
Title: Internal combustion engine connecting rod and piston assemblies
IPC: F16J1/24
Filed: 1962-09-28
Abstract: 940,690. Connecting-rods; pistons. SULZER FRERES S.A. Sept. 28, 1962 [Oct. 4, 1961], No. 36962/62. Heading F2T. A piston 1 is coupled to its connecting-rod 2 so that oscillations of the rod impart a progressive rotary motion to the piston through resilient drive means comprising a split ring 17 having one end operatively connected to the piston and its other end operatively connected to a piston-rotating ring 9 rotated by the rod 2. The spherical end 3 of the rod 2 is housed in bearings 5, 6 spaced by a member 7 in which the ring 9 having internal ratchet teeth 10 is rotatably mounted. A bush 11 in an eccentric bore in the end 3 houses a pair of sliders 12 urged apart by a spring 13 and each having at its outer end a pawl 14 to engage the teeth 10. A pin 20 secured to the ring 7 engages an aperture 18 in one end of the spring ring 17 and a projection 15 on the ring 9 engages a recess 16 at the other end of the ring 17. In operation, pivoting of the rod 2 about the bearing centre Z causes the sliders 12 to move relative to the ring 9 which is thereby rotated and applies a torque to the piston through the spring ring 17. The drive mechanism is protected by providing the pin 20 with a neck 22 which shears if the resistance to rotation of the piston is excessive. In a modification, Fig. 6 (not shown), the ring 17 has bevelled ends and the pin 20 is replaced by a pin that is secured to the ring 17 and engages an aperture in the member 7 and is released therefrom in the event of excessive resistance to rotation of the piston by the action of the bevelled ends on one another.
Patent GB-1174998-A (GB)
Title: Improvements relating to the production of Metal Granules
IPC: B22F9/10
Filed: 1967-08-11
Abstract: 1,174,998. Granulating metal. SCHLOEMANN A.G. Aug. 11, 1967 [Aug.31, 1966], No.37005/67. Heading C7X. Molten metal such as aluminium or steel is fed continuously through nozzle 22 into rotating pot 6, within which the surface of the metal assumes paraboloidal shape 18, and escapes as droplets through apertures 13 to fall into an obstructionfree cooling vessel. The cooling vessel is so large that the drops of metal which issue from the apertures 13 solidify before they reach the receiving funnel which forms the lower part of the cooling vessel. Pot 6 is suspended from body 7, which runs on ball or roller bearings 8 in a support over the cooling vessel and is driven by bevel wheel 10, and while it is in pot 6 the metal is kept molten by gas heater 19.
Patent GB-1473056-A (GB)
Title: Production of acid cleaning compositions
IPC: C11D1/34
Filed: 1975-09-09
Abstract: Acidic cleaning compositions which contain aliphatic and/or cycloaliphatic phosphoric acid mono- and/or diesters with 1 to 8 carbon atoms per alcoholic component of the ester, as well as surfactants and/or perfume oils and, where appropriate, also a short-chain water-soluble alcohol such as, for example, isopropanol, are produced. The corrosive properties of the product are eliminated by adding a water-soluble basic compound, and the resulting product remains a homogeneous solution even on prolonged storage. First a solution which contains 12 to 26 % by weight of the said phosphoric acid esters, the surfactants or perfume oils is prepared, the pH of this solution is then adjusted to 2.5 to 4.0 by adding the basic water-soluble compound, and subsequently the phosphoric acid ester content of the mixture is increased, while maintaining the pH constant, to more than 26 % by weight. The acidic cleaning compositions are employed, in particular, as clear rinses for mechanical washing of crockery or glassware.
Patent GB-1531784-A (GB)
Title: Sewing machine feeding mechanism
IPC: D05B85/06
Filed: 1976-09-08
Abstract: 1531784 Feed adjustment SINGER CO 8 Sept 1976 [18 Sept 1975] 37235/76 Heading D1G A sewing machine work feeding mechanism comprises means imparting work feeding movements to a feed dog (30, Fig. 3 not shown) connected (at 86, 84) to a rock shaft 72, the means comprising a rotary drive shaft 80 having an eccentric 78 connected by a pitman 74 and a pivot pin 60 to a link 62 connected to the rotary shaft, an operator influenced link 58 being provided to constrain the path of motion of pin 60 to control the stitch length and feed direction, and is characterised by the link 58 being pivotably connected at one end to the pin 60 and at the other end pivoted on a stud 42 carried on a ring 36 rotatably supported on an anchor disc 40. The ring is movable around the anchor disc 40, which is secured to the machine frame by screws (50, 52 Fig. 2 not shown) by linkage 34, 26 connected to a shaft 16 rotatable by a knob 14.
Patent GB-1427087-A (GB)
IPC: A01N47/36
Filed: 1973-08-06
Abstract: 1427087 Herbicides containing a urea derivative AIR PRODUCTS & CHEMICALS INC 6 Aug 1973 [14 Aug 1972] 37242/73 Heading A5E A method and composition for controlling unwanted vegetation in an area employed for growing sugarcane, uses 1, 3-dimethyl-3-(5- tertiary butyl-1, 3, 4-thiadiazol-2-yl)urea adsorbed on or absorbed in a solid carrier selected from talc, hydrated sodium silico aluminates, hydrated silicon dioxide, kieselguhr, finely divided clay, fuller's earth, sand, attapulgite clay, gypsum, corncobs, lime and wood flour, optionally together with a surfactant. The composition may be applied prior to or after emergence of the sugar cane. Trials are described wherein dispersions obtained from wettable powders of the urea, are applied to sugar cane cultivations.
Patent GB-1097620-A (GB)
Title: Spring sash balance
IPC: E05D13/00
Filed: 1966-08-20
Abstract: 1,097,620. Balanced windows. A. KAUFMAN and L. KAUFMAN. Aug. 20, 1966, No. 37426/66. Heading E1J. In a sash balance of the kind comprising a helical spring 9 located within a rotatable cylinder 1 by which it is wound or unwound by rotation of the cylinder when the sash S is moved vertically the cylinder has on the exterior thereof a rib 2 which is engaged in a slot or groove in the head 21 of a stud 20 of copper alloy (brass) and having a shank 23 of smaller diameter than the head 21 peened over a torsional bracket plate 10 fixed to the window frame F by means through the aperture 11, the head 21 and cylinder 1 being enclosed by a sheet metal '(steel) loop 15 held by the stud 20 on the bracket 10, the slot in the head being disposed at an inclination to the vertical to correspond with the pitch of the rib 2. The ends of the loops 15 are dovetailed together with the head of the stud 20 overlying them. The spiral rib 2 may be of varying pitch or uniform.
Patent GB-852078-A (GB)
Title: Improvements in and relating to tuyeres for blast furnaces
IPC: C21B7/16
Filed: 1957-12-02
Abstract: 852,078. Tuyeres. INSTITUT DE RECHERCHES DE LA SIDERURGIE. Dec. 2, 1957 [Dec. 3, 1956], No. 37439/57. Class 51 (1). The effective cross-sectional area of a blast furnace tuyere is limited by blowing air transversely of the main blast flow through one or more slots 5 formed in a plenum chamber 4 near the mouth of the tuyere and supplied by valve-controlled pipes 2, 8 branching off a main 7, which may be the furnace bustle pipe. The tuyere nose 6 is cylindrical or slightly divergent and the water jacket 1 is supplied by branch pipes 10, 11 extending from a main 9 to said tuyere. Fig. 7 shows the arrangement of the respective ends 25 and 22 of the air and cooling water pipes at the nose of the tuyere, the wall of the plenum chamber being recessed at 23 to accommodate the ends 22 of the water pipes. In a modification, Fig. 3, the slot 5 is formed on the inner periphery of a separate plenum chamber 14 which is retractably mounted on the forked supply pipe 12. Another modification, Fig. 4 (not shown), has a retractable supply pipe formed at the end with an axial nozzle through which the auxiliary air is dispersed transversely of the main blast flows. A further modification, Fig. 5 (not shown), has a diametrically disposed plenum chamber supplied at the ends by branch pipes. The slot or slots 5 can also be disposed behind the nose ot the tuyere, Fig. 8 (not snown).
Patent GB-838738-A (GB)
Title: Improvements in or relating to the application of plastic coatings to thin-walled articles
IPC: C09D5/46
Filed: 1957-12-03
Abstract: Thin-walled articles such as cans and containers of sheet metal are coated with thermoplastic material by heating them to at least 300 DEG  C., immersing them in a fluidized bed of the powdered plastic, and heating them after removal therefrom by means of a merely heated current of air or gas.  The plastic may be polyethylene or a polyamide.  The articles may first be sprayed with zinc. Specifications 643,691, 759,214 and 838,739 are referred to.
Patent GB-915154-A (GB)
Title: Improvements in pressure fluid actuated hammers
IPC: B25D9/26
Filed: 1961-10-19
Abstract: 915,154. Percussive tools. ATLAS COPCO A.B. Oct. 19, 1961 [Oct. 26, 1960], No. 37566/61. Class 124. A fluid-pressure hammer piston-type tool has an exhaust vent 16 in the cylinder wall 2 and connected to atmosphere by a passage 17 having means to vary its cross-section so that the flow of exhaust from one or both ends of the piston 3 may be controlled to adjust the pressure in the cylinder opposing travel of the piston to the end of its strokes and the force of the blows on the tool 14 may be reduced by reducing the flow of exhaust. The stroke of the hammer is reduced, and the frequency of the hammer remains constant, or increases slightly. In the drill shown which is supplied with air through a throttle valve 10 in the handle 9, a valve 18 in the passage 17 may be set to control the flow from the space 4 above the piston to adjust the upward movement of the piston. Exhaust from the space 5 below the piston passes through rifling on the piston to a clearing passage 15 in the tool which has a twist mechanism. Instead of a valve in the passage a series of annular plugs having different apertures may be inserted in the passage. In a sculptors' hammer the supply of clearing air to the tool is omitted so that the flow of exhaust from both ends of the piston through the vent permits the adjustment of the upward and downward movements of the piston.
Patent GB-832027-A (GB)
Title: Improvements in or relating to the production of styrene and related compounds
IPC: C07C17/00
Filed: 1957-12-03
Abstract: Styrene and similar compounds are obtained by the dehydrogenation of alkyl aromatic hydrocarbons containing at least two carbon atoms in the side chain, or ethyl chlorobenzene, by mixing with steam which is at a temperature below the reaction temperature, heating the mixture to reaction temperature and passing over a dehydrogenation catalyst. The process can be applied to the dehydrogenation of ethyl benzene, diethyl benzene, isopropyl benzene, ethyl toluene, and ethyl naphthalene.  Suitable reaction temperatures are 500-700 DEG  C. and pressures 0-40 p.s.i.g.  In converting ethyl benzene to styrene suitable conditions are: hydrocarbon flow 15-105 lbs./hr./cu. ft. of reactor, steam flow of 7-50 lbs./hr./cu. ft. of reactor, steam to ethyl benzene weight ratio 1.5-20, reactor inlet temperature 540-650 DEG C., pressure 1-15 p.s.i.g.  Styrene is separated from the product and unreacted ethyl benzene is recycled.  Suitable catalysts are ferrous oxide-potassium oxide or those described in U.S.A. Specification 2,110,833.