baber/WOPTO huggingface dataset:
Patent GB-889012-A (GB)
Title: Improved steering systems for water craft
Inventor: HOTCHKISS ALLEN IAN
IPC: B63H25/04
Filed: 1957-02-22
Abstract: 889,012. Steering ships. COMMUNICATIONS PATENTS Ltd. May 15, 1958 [Feb. 22, 1957], No. 6074/57. Drawings to Specification. Class 114. [Also in Group XXXVIII] In a steering system for a water craft, the movement of the rudder, or other steering element, is controlled by the personally produced movement in azimuth relative to the craft of an apparatus such as a whaling gun, searchlight, or radar antenna mounted on the deck of the craft. Preferably the application is to the steering of a whaling boat, optionally, from the normal steering position or from the movement of the whaling gun once the whale has been sighted. The coupling between the rudder and the gun may be mechanical, hydraulic, or preferably by an electro mechanical servo system utilizing e.g. switches closed by movement of the gun from a dead ahead position, or the output from the slider of a potentiometer coupled to the gun, to control the position of the rudder. The servo system may also incorporate means e.g. compass controlled potentiometer to allow automatic steering of the craft and may also incorporate further means, e.g. hand controlled potentiometers, so that steering may be controlled from any position provided with such a hand operable potentiometer.
Patent GB-856993-A (GB)
Title: Improvements relating to the pre-treatment of aluminium printing plates and the production of pre-sensitized plates therefrom
IPC: C09D5/08
Filed: 1957-02-22
Abstract: An aluminium plate which may be smooth or grained as by sandblasting is prepared for reception of a light-sensitive coating by application of an alkali metal silicate solution and then treating the siliceous layer so formed with a water-soluble organic acid.  Example I describes successive treatments with solutions of (a) phosphoric acid, (b) sodium hydroxide, pyrophosphate and tripolyphosphate, (c) chromic acid for desmutting, (d) sodium silicate, with a water rinse after each treatment, and then with aqueous citric acid, followed by hydroquinone as antioxidant.  Example II replaces the citric acid with tartaric acid.  Specifications 764,442 and 764,443 are referred to.
Patent GB-557843-A (GB)
Title: Improvements in or relating to apparatus for testing electric coils
IPC: G01R31/06
Filed: 1942-05-06
Abstract: 557,843. Testing coils. SELF-PRIMING PUMP & ENGINEERING CO., Ltd., WATSON, F. J., and MOUTRAN, F. May 6, 1942, No. 6106. [Class 37] Apparatus for testing coils such as the field coils of electric motors comprises as a unitary structure a Wheatstone bridge for checking the ohmic resistance, means for checking the number of turns by an A.C. circuit including a transformer of which the secondary is formed by the coil under test and includes a current indicating instrument in circuit, and means for selectively coupling the coil under test in the Wheatstone bridge circuit or in the secondary circuit of the transformer. Contained in a casing are a galvanometer 8, resistances 1, 2, 3, 5, 6, a transformer 11, switches 12, 14, 15, 16, 17, 19, 20, 26, indicating lamps 7, 9, 10, a scale-illuminating lamp 4, a resistance 27, and rectifier 28. The coil 23 to be tested is placed in a socket comprising an electromagnetic core frame, the core having a tapped primary winding 22 and the coil 23 forming the secondary winding. The socket is situated beneath a hinged cover plate which in the closed position closes the switches 19, 20, 26 and also makes the coil contacts 21, 24, 25, the contacts 21, 25 taking in both shunt and series windings of the coil and the contacts 21, 24 taking in the shunt winding only. The switch 26 operates a green lamp 7 to indicate that the cover is properly closed. For the resistance test the coil 23 under test is included as one arm of a Wheatstone bridge, of which two arms are formed by the resistances 5, 6 and the third arm by the resistance 3 or the resistances 2, 3 in series. Current supply to the bridge is from a 24 volt D.C. source 40. The switch 12 makes connections for testing field coils for 12- volt or 24-volt units. In the upper position, for testing 12-volt coils, the resistance 2 is shortcircuited, as is also a portion of the primary coil 22 and of the resistance 1 in the primary circuit. In the lower position, for testing 24-volt coils, the coils 2, 3 are in series and the whole of the primary coil 22 and of the resistance 1 are in the testing circuit. The switches 14, 15, 16, 17 are linked and operated by a single knob. In their upper position the whole of the coil 23 is connected in the bridge for the resistance test, the signal lamp 9 being illuminated. In the lower position the shunt coil alone is connected to the galvanometer 8 in series with the resistance 27 and the rectifier 28, the primary of the transformer 11 being connected to the 240-volt A.C. supply 41 and its secondary energizing the primary winding 22. The indicator lamp 10 is illuminated to indicate that the number of turns is being tested. In front of the pointer of the galvanometer 8 is a screen formed with two slots through which two different portions of the pointer may be observed. These slots are appropriate respectively to the resistance and number of turns tests, and the opposite ends of each slot define prescribed variations from a standard.
Patent GB-1172264-A (GB)
Title: Process for Dyeing Textile Materials
IPC: D06P1/30
Filed: 1967-02-09
Abstract: 1,172,264. Dying cellulose/polyester blends. MARTIN-MARIETTA CORP. 9 Feb., 1967 [9 Feb., 1966], No. 6168/67. Heading D1B. Textile material comprising material or regenerated cellulose textile fibres (other than cellulose esters) blended with polyester textile fibres are dyed by applying an aqueous dye composition comprising water, a suspension of disperse dye, dispersing agent and a solution of water-soluble organic dyestuff of the phthalocyanine, metal phthalocyanine, pyrazolone, anthraquinine, dioxazine, sulphur, azo, dibenzanthrone or perylene type, said water soluble organic dyestuff having per molecule at least one pendant thiosulphonate group selected from -SSO 3 Na, -SSO 3 K, and -SSO 3 NH 4 , drying and then heating the material to fix the disperse dye on the polyester fibres and applying an aqueous solution of Na 2 S 2-4  to the fibres followed by washing with water. Preferably linear polyesters derived from a polybasic acid and a dihydric alcohol are used, the disperse dye being fixed using hot air at 350-450‹F for 15 seconds to 3 minutes, the water soluble dye preferably being an azo dye having per molecule 1-4 pendant -SSO 3 Na groups, disodium tetrasulphide being used in aqueous solution for 1-30 seconds. The materials may be dyed in the same or different shades.
Patent GB-473585-A (GB)
Title: Feeding mechanism for sewing machines
IPC: D05B27/04
Filed: 1937-03-02
Abstract: 473,585. Sewing - machines. FAIRWEATHER, W. C. (Singer Manufacturing Co.) March 2, 1937, No. 6175. [Class 112] The power-driven means for operating the feed foot of a sewing-machine include a lost - motion spring and shoulder connection which is yielding in one direction to lower the foot, and positive in the opposite direction to raise the foot. The rock-shaft 9 has a crank arm 10 connected by the link 12 to the needle bar 13. The counterbalance head 11 on the rock-shaft has a guide-way 15 in which slides the block 16 carrying the crank-pin 17 which, by means of the slide 41, Fig. 2, causes the arm 40 and shaft 37 to rock. At its end the shaft 37 carries a plate 42, Fig. 3, with a cylindrical housing 43 containing a spring-pressed plunger 44 which normally bears on the lever 35 to hold the leather button 46 on the lever, in contact with the ledge 47 on the plate 42. The upper end of the feed bar 33 hangs on the pivot 34 at the end of the lever 35 and the lower end of the bar 33 carries the feed foot 18, The crank-pin 17 therefore imparts downward movements to the feed bar through the spring 45 and imparts upward movements by engagement of the parts 46, 47 ; the parts 44, 47 form a lost-motion connection with the lever 35.
Patent GB-1497434-A (GB)
Title: Bag retaining device and bag dispensing method
IPC: B65B43/14
Filed: 1976-02-12
Abstract: 1497434 Filing papers &c SMITH ANDERSON & CO Ltd 12 Feb 1976 [13 Feb 1975] 6213/75 Heading B6E A stack of bags (12), Fig. 2 (not shown), is mounted by the device of Fig. 1 for successive removal by hand, the device comprising a base plate 1 and centre plate 2 to which a handle 4a carrying a spike 6 is pivotally attached at 4c, so that on downward movement of the handle 4a the stack of bags (12), which has an end portion thereof located between a nose portion 2a of plate 2 and a bush 3, is held in position due to the spike 6 being pushed therethrough. In use the plate 1 is mounted substantially vertically so that the bags (12) depend freely. The handle 4a is retained in its bag-engaging position by the insertion of a pin (11) in matching holes 13a, 13b.
Patent GB-767440-A (GB)
Title: Improvements in or relating to the purification of fluorine-containing polymers
IPC: C08F6/28
Filed: 1954-03-03
Abstract: Metallic impurities are removed from fluorine-containing polymers by treating with a carboxylic acid having from 2 to 14 carbon atoms in the molecule, and oxidizable impurities, such as wood, paper, oil, cloth and grease, are removed by treating with a mixture of a carboxylic acid having from 2 to 10 carbon atoms and an inorganic metallic oxidizing compound of a metal in its highest valence state which is reducible to a compound of the metal in a low valence state, with or without a secondary inorganic metallic oxidizing reagent having a sufficiently high oxidizing potential to maintain the inorganic oxidizing compound in its highest valence state.  The polymer may be a homopolymer of tetrafluoroethylene, trifluorochloroethylene, perfluoropropene, or perfluorobutadiene, or a copolymer of one of the above with one or more of ethylene, vinyl chloride, vinyl fluoride, vinylidene fluoride, vinylidene chloride or trifluoroethylene. The carboxylic acid may be ethylene diamine tetracetic or tetrapropionic, propylene diamine or phenylene diamine tetraacetic, benzoic, chlorobenzoic, phenylacetic, phenyl propionic, toluic, phthalic, succinic, glutaric, trichloroacetic, mono-, di- or trifluoroacetic, acetic, propionic, butyric or valeric acid.  The compound of a metal in its highest valence state may be chromium trioxide, sodium or potassium dichromate, managanese dioxide, potassium permanganate, or a salt or oxide of cerium, vanadium, titanium, osmium or lead.  The secondary oxidizing reagent may be chloric, perchloric, bromic, iodic, or periodic acid, a sodium or potassium salt thereof or hydrogen peroxide.
Patent GB-805089-A (GB)
Title: Connecting device for shoe heels
IPC: A43B21/38
Filed: 1957-02-25
Abstract: 805,089. Shoe heels. MONTEROS Y DATO, E E. de L. Feb. 25, 1957 [Sept. 1, 1956; Nov. 29, 1956], No. 6245/57. Classes 17(2) and 17(3) A shoe heel comprises a top portion 1 of wood having a boss 2 on its lower surface and an intermediate portion 3, which may be of aluminium, having recesses in both its top and bottom surfaces. A screw 4 passing through a plate 7 aids the attachment of the parts 1 and 3. A leather top piece 6 has a boss to enter the lower recess 5 and its attachment is aided by teeth 8, 9 on the plate 7. In modifications, the plate 7 may be omitted, the boss of the top left and the corresponding recess being undercut to prevent detachment, and the top piece and boss may be formed as separate pieces of leather. The attaching screws of the top and intermediate portions may extend downwards from the heel seat through the top piece. The intermediate portion may be hollow. The bosses and recesses may be shaped to prevent rotation.
Patent GB-1417100-A (GB)
Title: Anti-static nylon
IPC: C08L77/00
Filed: 1973-02-09
Abstract: 1417100 Antistatic nylon compositions FIBER INDUSTRIES Inc 9 Feb 1973 [9 Feb 1972] 6391/73 Heading C3R A nylon contains 3-15% wt. of a bispolyoxyalkylated higher mono-alkyl amine (A). (A) preferably has formula where R is straight or branched C 6-22  alkyl, R<SP>1</SP> is C# 4  alkylene, and (m + n) is 10-200. Also present may be 1/6 to 1/3 by wt., based on (A), of an alkarylsulphonic acid or salt, e.g. where R<SP>11</SP> is C 6-18  alkyl, and M is alkali metal, NH 4  or H. The nylon may be melt-spun or wet- or dry-spun into antistatic filaments of volume specific resistance <1 x 10<SP>12</SP> ohm-cm. (A) may be added before or after the nylon polymerization. (A) may become chemically bonded to the polymer through its OH Group(s). Conventional additives may be present; TiO 2  and Na hypophosphite are specified. Oxyethylated polycaproamide or sorbitan monooleate may also be added.
Patent GB-1015024-A (GB)
Title: New salts and quaternary salts of basic esters of substituted hexahydro benzilic acids, and a method of preparing same
Filed: 1963-02-18
Abstract: The invention comprises acid-addition salts and quaternary salts of the Formula I <FORM:1015024/C2/1> wherein R1 is a hydrogen or halogen atom or an ethyl, methoxy or methylmercapto group, X is a straight or branched chain alkylene group having 2 to 5 carbon atoms, R3 and R4 are alkyl groups having 1 to 4 carbon atoms, which may be linked direct or by way of a nitrogen or oxygen atom to form, together with the adjacent nitrogen atom, a residue of a secondary saturated heterocyclic amine having 4 to 7 carbon atoms, R5 is a hydrogen atom or an alkyl group having 1 to 4 carbon atoms and A is an anion of an inorganic or organic acid.  The compounds are prepared by (a) reacting a compound of the Formula II <FORM:1015024/C2/2> wherein M is an alkali metal atom, with a compound of the Formula III Y-X-NR3R4 wherein Y is a halogen atom or a residue of an aliphatic or aromatic thio acid, and then converting the thus obtained base either to an acid-addition salt by neutralization with an inorganic or organic acid, or to a quaternary salt by addition of a reactive alkyl ester, or (b) reacting a compound of the Formula II, wherein M is an alkyl group of 1 to 4 carbon atoms, with an excess of a compound of Formula III, wherein Y is a hydroxyl group, in the presence of the corresponding alkali metal amino alcoholate, and then converting the base thus obtained either to an acid-addition salt by neutralization with an organic or inorganic acid, or to a quaternary salt by addition of a reactive alkyl ester.  Hexahydrobenzilic acids and esters.-o- and p-Fluoro-, o- and p-chloro-, p-bromo-, p-iodo-, p-ethyl-, p-methoxy-, 3,4-dimethoxy- and p-methylmercapto-hexahydrobenzilic acids are prepared by reacting the corresponding substituted phenylglyoxylic acid ethyl ester with cyclohexyl magnesium bromide, decomposing the resulting complex, and saponifying the hexahydrobenzilic acid ethyl ester so obtained. m-Fluoro-, o- and m-chloro- and m-methoxyhexahydrobenzilic acids are prepared by reacting cyclohexylglyoxylic acid ethyl ester with the corresponding substituted phenyl magnesium bromide, decomposing the complex obtained, and saponifying the resulting hexahydrobenzilic acid ethyl ester.  Glyoxylic acids and esters.-o-Fluoro-, o- and p-chloro-, p-bromo- and p-methoxy-glyoxylic acid ethyl esters are prepared by oxidizing the corresponding substituted mandelic acid with KMnO4 and esterifying the resulting glyoxylic acid with ethanol. p-Fluoro-, p-chloro-, p-bromo-, p-iodo- and p-methylmercapto-glyoxylic acid ethyl esters are prepared by Friedel-Crafts reaction of ethoxalyl chloride with the corresponding substituted benzene in the presence of AlCl3 and CS2, and esterifying the resulting glyoxylic acid with ethanol.  Cyclohexyl glyoxylic acid ethyl ester is prepared by esterifying the free acid with ethanol in the presence of sulphuric acid.
Patent GB-144783-A (GB)
Title: Improvements in or relating to boilers for heating water or for generating steam
IPC: F24H1/32
Filed: 1919-03-14
Abstract: 144,783. Smith, D. V. H. March 14, 1919. Water-tube boilers.-In a boiler having sinuoustube sections a arranged side by side so as to form longitudinal flues h, the sections are connected to-. gether at opposite sides of the boiler, and bent tubes f are arranged behind the sections, the bottom parts of the bent tubes passing between the bars of the grate. The ends of alternate sections are connected together by short header pieces.
Patent GB-965484-A (GB)
Title: Improvements relating to vehicle mirrors
Inventor: NEALE DAVID WARWICK
IPC: B60R1/04
Filed: 1962-02-20
Abstract: 965,484. Rear-view mirrors. RAYDOT Ltd. Jan. 2, 1963 [Feb. 20, 1962], No. 6439/62. Heading B7J. A rear-viewing mirror comprises a mirror glass 11, Fig. 1, held in a peripheral groove in a easing 10 moulded from synthetic resinous material, the casing having a cup 12 to seat a ball 15 on a stem 14 passing through a tapered hole 13 in the cup and secured to a flexible suction device 18, wherein the ball is retained in its seating by a disc 16 in turn secured in position by a U-shaped wire pin or clip 17 extending secantwise of the cup diameter. In the embodiment of Fig. 3, the ball 23, on a mounting bracket 24, 28, is " popped " into the cup 22 having a reduced mouth 25. The ball is retained in its seat by a split ring 26 secured in the cup by radial pins 27. Specification 880,999 is referred to.
Patent GB-671668-A (GB)
Title: Improvements in or relating to a hydraulic check
IPC: F21V21/092
Filed: 1949-03-10
Abstract: 671,668. Hydraulic shock absorbers. HOUDAILLE - HERSHEY CORPORATION. March 10, 1949 [Aug. 25, 1948], No. 6459/49. Class 108 (iii) An hydraulic check unit comprises means defining a primary chamber adapted to be filled with liquid, a piston reciprocable in the primary chamber, means defining throttling passages or apertures to byepass liquid around the piston to provide a predetermined resistance to movement of the piston, the means including a reservoir chamber in liquid communication with the throttling passages and having at least a portion thereof disposed above the level of liquid filling the primary chamber, the upper portion of the reservoir chamber defining a trapped air space, the volume of which is determined solely by the liquid pressure in the reservoir chamber, whereby the liquid capacity of the reservoir chamber is automatically varied as a function of the liquid pressure therein. In the arrangement shown as applied to damping the movement of a picker stick of a loom, a piston 27 having a face 27b which is helically inclined relative to a piston rod 26, is slidable in a sleeve 23, rotatably mounted in a counterbore 21b of a liquid-filled cylinder casing 21. The sleeve 23, which is rotatable relative to the casing and piston by means of a pinion 24 which meshes with teeth 23a formed on the sleeve, is also provided with throttling apertures 29, 30 which establish communication between opposite sides of the piston 27 through a counterbore 21c in the casing 21. A sleeve 34 is located in the counterbore 21c concentrically of the sleeve 23 and communicates through apertures 34a and an annular recess 21n in the cylinder casing 21, with a reservoir chamber 21m formed integrally with the casing 21. In the operative position of the unit, the liquid level in the reservoir, corresponds to the bottom face of an inwardly projecting sleeve 21w forming part of a filling opening 21q, the increase in volume of the liquid in operation of the unit compressing the air which is trapped above the liquid in the reservoir. Leakage from the casing 21 is prevented by a sealing ring 31 which is mounted in the periphery of a bearing support 22 for the piston rod 26. Leakage along the piston rod is prevented by a sealing unit 33 of known type mounted in a counterbore 22b of the bearing support 22. Air, which may be drawn in during filling and operation of the unit. is bled through a restriction 34d in the sleeve 34, passage 21r and passages 21s and 22c respectively.
Patent GB-1533885-A (GB)
Title: Engines and pumps
IPC: F01B3/00
Filed: 1976-02-18
Abstract: 1533885 Swash-plate engine C VAN DER LELY WV 18 Feb 1976 [21 Feb 1975 (2)] 06471/76 Heading F1B [Also in Division F2] A supercharged compression ignition swash-plate I.C. engine has eight cylinders 15-18 arranged in pairs with a common combustion chamber 10, 11 for each pair of cylinders [15, 16] [17, 18], the cylinders being arranged at 90 degree intervals around a straight drive-shaft 7, with their axes inclined to the shaft axis 8 and connected to the shaft 7 by piston-rods and a pair of swash-plates 39, 40. Charge air from a compressor rotor 76 mounted on the shaft 7 passes along helical guides 77, 78 into four of the cylinders (one of each pair) by slots 87 wherein asymmetric piston heads 23 promote whirling of the charge air to facilitate scavenging. Fuel is injected by injectors 76 near TDC and the combustion gases exhaust through slots 87 in the other four cylinders to an exhaust manifold 89, 90. The cylinders have wet liners, intensively cooled towards the combustion chamber 10, 11 by water jackets 95. A gear-pump 98 forces oil through a central oilway 56 in the shaft 7 and to the swash-plates 39, 40; the details of the oilways being shown in Fig. 3. Additionally oil is sprayed in turn into the cylinder liners by a calibrated orifice 73 connected to oilway 56. The swash-plates each comprise a thrust ring 42 which is freely slidable upon a disc 50 mounted fast on the shaft 7. The thrust ring 42 is restrained from rotating with respect to the cylinders by gear teeth 49 engaging the teeth 83 of a crown gear 82 mounted fast with respect to the cylinders.
Patent GB-306966-A (GB)
Title: Improvements in and relating to twist drills
IPC: B23B51/02
Filed: 1929-02-28
Abstract: 306,966. Patkay, S. Feb. 28, 1928, [Convention date]. Drills.-In order to enable twist drills made from twisted rod of the same helical angle to be used for operating or. different materials at their full cutting- capacity, the angle of the helix is made suitable for the smallest cutting angles and the face of the helical rib is ground to give a more obtuse angle when required. The drills have the most acute helical angle which is likely to be required, as shown in Fig. 4, and may be ground at the cutting edges b to produce surfaces e, Fig. 5, inclined at an angle a which is greater than the angle of the helix. The surfaces may extend from beyond the central cutting edge h to the periphery g as shown, or may lie within these extremes and may be off constant or varying angle from the centre to the periphery. The correct cutting angle a for any material is determined by experiment on a drilling-machine provided with a measuring table for ascertaining the working resistance to the drill.
Patent GB-480489-A (GB)
Title: Improvements in and relating to cans or containers for liquid servicing products
IPC: B65D47/12
Filed: 1937-03-05
Abstract: 480,489. Cans. MAUGUY, V. A., and LEVY, R. J. March 5, 1937, No. 6562. Convention date, March 20, 1936. [Classes 66 and 125 (iii)] In a can for liquid polishes &c. provided with a bottom 2 capable of being deformed to eject a quantity of liquid through the nozzle 51, the spout 5, covering cap 8, and the neck 3 of the can are attached together by the aid of combined internal and external screw threads formed on the neck 3, Fig. 2, or on the spout 5, Fig. 5. A washer 6 is provided between the spout and the neck, and a pad 9 between the spout and the underside of the cap 8. In the construction shown in Fig. 5, the spout is shown as being locked to the neck by stop teeth 12.