baber/WOPTO huggingface dataset:
Patent GB-415527-A (GB)
Title: Improved manufacture of high molecular sulphones
IPC: C07C315/00
Filed: 1933-04-21
Abstract: High molecular sulphones which are prepared by reacting esters derived from aliphatic or cycloaliphatic hydroxy compounds and oxygen containing mineral acids with sulphinic-acids or their salts, at least one of the components containing an aliphatic residue having at least eight carbon atoms, are stated to have emulsifying properties. In examples: (1) p-toluene sulphinic acid or dodecane sulphinic acid is treated with dodecylsulphuric ester in the presence of caustic soda: (2) a -naphthalene-sulphinic acid, after the addition of caustic soda is treated with the sodium salts of the sulphuric esters of a mixture of higher alcohols: (3) the disodium salt of dodecylphosphoric acid ester is treated with the sodium salt of p-toluenesulphinic acid.  The following components are also mentioned: the sulphuric, phosphoric and p-toluenesulphonic acid esters of amyl, octyl, myristic, resin and naphthene alcohols and iso-amyl, benzene and chlormethane sulphinic acids.ALSO:High molecular sulphones are prepared by reacting esters derived from aliphatic or cycloaliphatic hydroxy compounds and oxygen containing mineral acids with sulphinic acids or their salts, at least one of the components containing an aliphatic residue having at least eight carbon atoms.  The sulphones have emulsifying properties and may be used as assistants in the cosmetic and rubber industries and as softening agents in the textile industry.  In examples: (1) p-toluene sulphinic acid or dodecane sulphinic acid is treated with dodecylsulphuric ester in the presence of caustic soda; (2) a -naphthalenesulphinic acid, after the addition of caustic soda is treated with the sodium salts of the sulphuric esters of a mixture of higher alcohols; (3) the disodium salt of dodecylphosphoric acid ester is treated with the sodium salt of p-toluenesulphinic acid. The following components are also mentioned: the sulphuric, phosphoric and p-toluenesulphonic acid esters of amyl, octyl, myristic, resin and naphthene alcohols and iso-amyl, benzene and chlormethane sulphinic acids.  Chlormethane and dodecane sulphinic acids may be prepared by reducing the corresponding sulphochlorides with zinc dust or sodium amalgam.
Patent GB-1068272-A (GB)
Title: High stability gas cell frequency standard
IPC: H03L7/26
Filed: 1965-03-19
Abstract: 1,068,272. Automatic frequency control systems. STANDARD TELEPHONES & CABLES Ltd. March 19, 1965 [March 20, 1964], No. 11730/65. Heading H3A. In a frequency standard, employing a gas cell 10. a source of R.F. energy 16 is arranged to supply coherent R.F. pulses to the cell, the source being phase-modulated by low-frequency source 19 to produce amplitude modulation of the stimulated emission from the cell The microwave output from the cell is frequency changed down and fed to detector 34, the output from which is fed to a pair of gating circuits 38, 40. The gates select outputs corresponding to alternate microwave pulses and these are fed to phase comparators 46, 48 where they are compared with a reference signal from the low-frequency source 19 to give control signals which are fed to fixed contacts on relay 51. The amplitude/frequency curve of the output from gate 38, due to the first microwave pulse, is a comparatively wide single peak resonance curve, Fig. 3A (not shown), and the corresponding error signal is applied to a servo 52 as a coarse control of the frequency of oscillator 16. Relay 51 then changes over, to connect the control signal derived from gate 40 to the servo. The amplitude/frequency curve of this gate output is a sharp main resonance curve surrounded by subsidiary peaks, Fig. 3B (not shown), and the corresponding control signal provides a fine adjustment of the oscillator 16 frequency and a frequency f 2  within the main resonance curve. In a modification, one extended pulse is transmitted instead of two adjacent ones, to provide the sharp-peaked curve, only one gate being then necessary. Alternatively, a sequence of three or more pulses may be transmitted to further sharpen the peak.
Patent GB-1072978-A (GB)
Title: Reclining chair of the multiple movement type
IPC: A47C1/0355
Filed: 1966-03-17
Abstract: 1,072,978. Seats. P. S. FLETCHER. March 17, 1966, No. 11747/66. Heading A4J. In a three position reclining chair, in which, in the upright position, the weight of seat 20 acts through lever 54 to pull the foot-rest 26 into the folded position by applying the tension in link 74 to pivot 78, an effortless transition into the semireclined position is achieved by using the leverage of the back-rest 24 to support the weight, at the rear end of the seat 20, while lever 54 is approaching its deadcentre over relatively stationary pivot 66. As the chair occupant leans back, the backrest 24 moves about pivot 48, as a fulcrum, to raise pivot 42 and allow the lever 54 to be rotated clockwise, into the reversely inclined position (Fig. 2, not shown). The slightly increased angle between the seat and back-rest may be retained in the semireclined position or, alternatively, the further movement may restore the angular relationship present in the upright position. A carrier bar 32 is held in contact with supporting stud 31 by pin 102, during the first transition, and is then allowed to tilt about pivot 34 to provide the fully-reclined position of the chair (Fig. 3, not shown). In another form (Figs. 4-6, not shown) the foot-rest is divided into two mutually foldable parts.
Patent GB-117813-A (GB)
Title: Improvements in or relating to Ball Holders for Ball Bearings.
Inventor: WIBERG GEORG
IPC: F16C33/40
Filed: 1918-07-17
Abstract: 117,813. Wiberg, G. June 9, 1917, [Convention date]. Ball bearings.-A cage for ball bearings consists of a number of four-sided cells with only two sides of which the ball 5 can be in contact at the same time. The ball makes point contact with the cage.
Patent GB-627122-A (GB)
Title: Improvements in or relating to electrically heated boiling or hot plates
IPC: F24C15/10
Filed: 1947-05-01
Abstract: 627,122. Electric hot-plates. BACKER, C. B. May 1, 1947, No. 11749. [Class 39(iii)] An electric hot plate comprises one or more tubular heating elements 10, 11 and 12 supported above a reflector plate 19 by a cradle or like member 23, the element or elements being secured to a spider 13 and by liquid tight joints to a terminal cover 14, said cover being hingedly connected to a member 17 that is independent of the cradle or like member 23 and is provided with an earth pin 21 and a terminal block 16. The heating elements may be swung upwardly for the removal of the reflector plate. A heating element 12 may be disposed below the main heating elements 10 and 11 and may operate alone or in series with the main heating elements. The wires that protrude from the ends of the heating element or elements extend outwardly beyond the terminal pins before returning to their respective terminals. The reflector may be of glass having a metallic reflecting surface.
Patent GB-266566-A (GB)
Title: Improvements in and connected with steam generators
IPC: F23M5/08
Filed: 1926-05-05
Abstract: 266,566. Shaw, C. M. May 5, 1926. Cooling.-A water wall is provided at each side of the combustion chamber of a water-tube boiler, consisting of vertical tubes L, M connected at their upper ends to a transverse upper drum A and at their lower to longitudinal headers N connected to a lower drum D. The portion M of the tubes is connected to the upper drum' A by way of a header R. The tubes may extend at their lower ends through the side walls of the combustion chamber to external headers. The portion L of the tubes is expanded into tube holes in the drum A, some of which would ordinarily serve for the front bank or cross tubes. A water screen F across the ash hoppers is connected through headers G, H to drums B, E.
Patent GB-1504254-A (GB)
Title: Exhaust gas recirculation system for a diesel engine
IPC: F02B3/06
Filed: 1976-03-24
Abstract: 1504254 Exhaust gas recirculation CATERPILLAR TRACTOR CO 24 March 1976 [2 June 1975] 11824/76 Heading F1B An exhaust gas recirculation system for a diesel engine which has an air intake manifold 13, an exhaust manifold 20 and a fuel system with a range of fuel supply rate settings which correspond to engine loads comprises first and second butterfly valves 34, 35 in respective passages, 31, 32 for conducting exhaust gas from the exhaust manifold to the atmosphere and to the inlet manifold, the valves being connected by a shaft 36 and arranged relative to each other so that the first valve is being closed when the second valve is being opened, the system being adapted to operate in response to the fuel supply setting to vary the recirculation rate in relation to the engine load. The proportion of exhaust gas recirculated depends on the position of a piston 50, Fig. 2 which actuates butterfly valves 34, 35. The position of piston 50 depends on the state of relay switches 82, 83 which are respectively normally closed and normally open and determine whether the solenoids 72, 73 are energized to move respective plungers 75, 76 from their seats 63 to allow oil from a pump 16 to reach the piston 50 and a piston 49. Operation. When the diesel engine operates at low load a movable rod 25 of a governor and fuel pump assembly 24 is in the position shown in Fig. 2 so that the relay switches 82, 83 are not energized and therefore the solenoid 72 is energized but the solenoid 73 is not. Oil pressure acting on piston 49 holds it in its extreme righthand position and a spring 54 holds piston 50 in its righthand position which corresponds to the butterfly valves 34, 35 being orientated to allow maximum exhaust gas recirculation (e.g. 30 to 40%). When the engine 12 reaches about 55% of its rated load, rod 25 contacts a first spring contact 41 causing switch 83 to close, energizing solenoid 73 so that valve plunger 76 lifts from its seat 63 and the pressure of oil acting on piston 50 moves it leftwards until stop members 55 engage, at which position the butterfly valves 34, 35 occupy intermediate positions and allow about 15 to 20% recirculation. When the engine reaches approximately 80% of its rated load, the rod 25 will be in a position to cause the spring contact 41 to engage a second spring contact 42 so that relay 82 is energized to open and the solenoid 72 is de-energized and closes plunger 75 on to seat 63 to prevent oil from reaching the piston 49 so that it is caused by the oil pressure acting by way of piston 50 to move to the left, the piston 50 thus occupying its extreme lefthand position. The butterfly valves 34, 35 are therefore turned so as to substantially prevent exhaust gas recirculation.
Patent GB-872116-A (GB)
Title: Improved pressure-sensitive adhesive film
Inventor: CURTIS JOHN A
IPC: C09J7/10
Filed: 1959-04-08
Abstract: 872,116. Pressure-sensitive adhesive transfer tape. MINNESOTA MINING & MANUFACTURING CO. April 8, 1959, No. 11863/59. Class 140. A tacky pressure-sensitive adhesive acrylate polymer film having a steel plate adhesion value both at the exposed and at the initially concealed surface of at least 50 ounces per inch width (which is the stress required to strip the adhesive film from a polished steel plate) is removably supported on a thin flexible carrier web which has on both surfaces a coating of a cured polymethylsiloxane inert towards the said adhesive film. The acrylate polymer may be a copolymer of acrylate ester and a small but significant amount of acrylic ester e.g. at least about 90 parts of iso-octyl acrylate and not more than 10 parts of acrylic acid. The silicone polymer may be cured by a curing agent which is a metal salt of an organic acid e.g. lead octoate. The flexible carrier web may be a vegetable parchment made by acid treatment of heavy kraft paper containing glycerine as a flexibilizing agent. The silicone coated parchment carrier web may be first coated with a copolymer of fusel oil acrylate and methyl isoamyl acrylate, and then further coated with a resin-treated acrylate adhesive comprising a copolymer of 2- ethylbutyl acrylate and ethyl acrylate and an oil-soluble heat and oil-reactive phenol-aldehyde resin, or the silicone-coated web may be first coated with a vinyl-n-butyl ether polymer and then coated with a copolymer of fusel oil actylate and methyl isoamyl acrylate. The adhesive layer may be transferred to paper, glass, wood, metal, plastic and other surfaces. Specification 642,306 is referred to.
Patent GB-1031883-A (GB)
Title: Resilient splined coupling
IPC: F16D3/58
Filed: 1963-03-26
Abstract: 1,031,883. Shaft couplings; universal Joints. T. BURDELSKI. March 26, 1963 [March 26, 1962 (2)], No. 11902/63. Heading F2U. Two shaft ends 4, 5 are coupled by resilient plastic dogs 12, 12a, 18, 18a releasably held in grooves in a coupling sleeve 1 and engaging grooves 7 in the shaft ends. One pair of dogs may be more resilient than the other dogs and have part-spherical surfaces e, #, g engaging the shaft end grooves or the dogs may have spacing elements projecting from the faces near the shaft axes.
Patent GB-602104-A (GB)
Title: Acylacetylated derivatives of aryl amines
Filed: 1945-05-11
Abstract: Acylacetylated arylamines having the general formula <FORM:0602104/IV(b)/1> (in which the benzene nucleus may be substituted by halogen atoms, alkyl or alkoxy groups or is unsubstituted, R represents a hydrocarbon radical and n is 1 or 2) are prepared by the action of an ester of an acyl acetic acid containing one or two -CO-CH2-COOH groups on a diamine of the formula <FORM:0602104/IV(b)/2> which may be further substituted by halogen atoms, alkyl or alkoxy groups on the benzene nucleus in the presence of a solvent such as chlorobenzene.  Suitable acylacetic esters are ethyl acetoacetate, ethyl benzoylacetate and diethyl terephthaloylacetate.  In examples: (1) 2-nitro-4-aceto-acetyl-aminoaniline is prepared by the action of ethyl acetoacetate on nitro - p - phenylene diamine in monochlorobenzene; (2) 2-nitro-3-methyl-, 3-methoxy- and 3 - chloro - 4 - acetoacetylaminoaniline are prepared by analogous methods.  The products may be used as middle components in the preparation of azo dyestuffs.  Samples have been furnished under Sect. 2 (5) of products prepared by the above methods of the formul  below <FORM:0602104/IV(b)/3> <FORM:0602104/IV(b)/4> <FORM:0602104/IV(b)/5>ALSO:Acylacetylated arylamines having the general formula <FORM:0602104/IV (c)/1> (in which the benzene nucleus may be substituted by halogen atoms, alkyl or alkoxy groups or is unsubstituted, R represents a hydrocarbon radical and n is 1 or 2), e.g. 2-nitro-4-acetoacetyl-amino aniline and the 2-nitro-3-methyl; -3-methoxy- and -3-chloro-4-acetoacetylamino anilines may be used as middle components in the preparation of azo dyestuffs.  Samples have been furnished under Sect. 2 (5) of products of the formul  below. <FORM:0602104/IV (c)/2> <FORM:0602104/IV (c)/3> <FORM:0602104/IV (c)/4>
Patent GB-644481-A (GB)
Title: Improved connecting device for elements of elastic fluid machines
IPC: F01D5/02
Filed: 1948-05-01
Abstract: 644,481. Securing together rotary-turbine parts. SVENSKA TURBINFABRIKS AKTIEBOLAGET LJUNGSTROM. May 1, 1948, No. 11997. Convention date, May 29, 1947. [Class 80(ii)] [Also in Group XXVI] A turbine disc 1 and a tubular shaft 4 are united and centred by integral headed projections 3, 5 which interlock so as to prevent relative axial and circumferential movement but permit relative radial movement. In assembly, the shaft is heated and or, the turbine disc is cooled so as to permit the shaft to be pushed over the disc flange 2 and positioned so that the projections will interengage as the parts return to an equal temperature.
Patent GB-705291-A (GB)
Title: Gummed paper
IPC: C09J7/21
Filed: 1951-05-23
Abstract: 705,291. Adhesive paper. WEGENER, A. May 23, 1951, No. 12020/51. Class 140 Adhesive paper to be printed on is prepared by coating one face of a paper base with a thin moisture-proof film layer by applying a filmforming material dissolved in a volatile organic solvent, drying the film layer quickly so that permeation of the paper backing does not occur, and subsequently applying an adhesive coating, which is non-tacky when dry, to the film. The film-forming material may be natural or synthetic rubber, nitrocellulose, cellulose acetate, polystyrene, polychloroprene, polyethylene sulphide, polyvinyl resin or bituminous compounds. The adhesive, which may be applied in aqueous solution and dried before winding up, may be dextrine, gum arabic, vegetable gums, or cold glues. A wetting agent, e.g. sulphonates of aliphatic alcohols, or a naphthalene sulphonic acid-formaldehyde condensation product, an inert solid, e.g. talcum, barium sulphate, and titanium dioxide, or a solid adhesive, e.g. dextrine, or gum arabic, or any or all of these separately or in admixture, may be applied in finely divided form to the film before the adhesive coating. The wetting agent may be applied in aqueous solution.
Patent GB-316238-A (GB)
Title: Improvements in or relating to the manufacture of reinforced or compound glass and to the coating and treatment of sheets of other material
IPC: B32B17/10
Filed: 1928-04-24
Abstract: 316,238. Riley, G. B. April 24, 1928. Coating-machines. - Sheets of glass or other sheet material are washed dried, coated with liquid continuously in apparatus comprising washing means W, drying chamber D, coating means C, cooling chamber, h, and drying chamber m, and are finally delivered on to a table n from which they are stacked for the next operation. The washing apparatus comprises rubber rollers a<2>, a<3> pairs of transversely - reciprocated brushes w<1>, w<2> and fluid - spraying pipes w<10>, w<11>. The plates are carried by a conveyor b through the drying chamber D heated to 90‹-120‹ F. by hot air through the shaft d<1> and provided with a soft wiper d to remove adhering drops. The plates are carried by rollers c from the drying chamber to pairs of upper and lower coating rollers c<2>, c<3>, c<4>, which are respectively convex, concave, and cylindrical to ensure distribution of the coating liquid applied thereto by slotted or perforated pipe c<8> and distributing rollers c<5>, c<6>, c'. Rollers c<20>, c<21> engage suclcessive pairs of the rollers c<5> - - c1 to transfer the coating liquid. The conveyor e delivers the plates to a conveyor h in a cooling or contracting chamber which is cooled in a tank h<1> by water maintained at the required temperature by a refrigerator h<8>. Surplus water is removed from the conveyor h by a squeegee roller h<9> opposite a guide roller h<2>, The plates are finally carried by a conveyor m through a drying or expanding chamber heated by air draught m<1>. The rollers a' are driven by screw-gears a', belt a', bevel gear and belt a<9> bevels a<12>, a<14> and motor A. The brushes are actuated by a pivoted arm w<5> lever and connecting rod w<7>, w<8>, and crank pin w<9> on a shaft a<8>. The motor A also drives the conveyer b by belt a<17>, a<19> and the rollers c by screwgear c<25>, belts c<14>, c<27> and bevel gear c<29>. The coating rollers are driven by belt c<12> and the conveyer e by belts e', e<3> from the shaft e<9>. A motor A<2> through bevels h<10> and belts h<13>, h<17>, drives the conveyer h and by bevels m<11> and belts m<10>, m<6>, the conveyer m. The brushes are mounted on slotted rods sliding on fixed pins w<17>, Fig. 3. If several motors are employed to drive the conveyers, one resistance may be used to regulate the speed. The apparatus may be enclosed in a wooden casing having glass panels on the top and sides some of which may be hinged for access to remove broken pieces of glass &c. under treatment. The belts may have adjustable jockey pulleys.
Patent GB-1004190-A (GB)
Title: Improvements in hydraulic braking systems
IPC: B60T11/34
Filed: 1963-03-27
Abstract: 1,004,190. Fluid pressure brakes. H. TEVES, E. A. TEVES and M. TAUSEND, [trading as ALFRED TEVES MASCHINEN-UND ARMATURENFABRIK KOMM.GES.]. March 27, 1963 [April 5, 1962], No. 12104/63. Heading F2F. In a hydraulic braking system for a motor vehicle two pressure-varying valves 12, 13 having different changeover points are provided in lines between a master cylinder 1 or other fluid pressure actuator and the front or rear brakes 3, 7. Each brake 3, 7 has two operating cylinders 4, 5; 8, 9 respectively supplied with pressure liquid through front and rear brake lines 10, 11; 10<SP>1</SP>, 11<SP>1</SP> from a tandem master cylinder 1 and the valves 12, 13 are provided in the rear brake lines 10<SP>1</SP>, 11<SP>1</SP>. The valves 12, 13 may be pressure reducing or pressure limiting valves for the rear brakes and may be pressure increasing valves for the front brakes.
Patent GB-387186-A (GB)
Title: Improvements in or relating to electric current supply systems
IPC: H02M7/08
Filed: 1932-04-27
Abstract: 387,186. Rectifying alternating current. IGRANIC ELECTRIC CO., Ltd., 147, Queen Victoria Street, London.-(Assignees of Stevens, W. C. ; Milwaukee, and Stansbury, C. ; Wauwatosa, both in Wisconsin, U.S.A.) April 27, 1932, No. 12107. Convention date, April 29, 1931. [Class 38 (ii).] In order to ensure continuity of supply of rectified current to a load 3 fed from A.C. lines L1, L2 through a discharge device 1, a second discharge device 2, not normally operative, is connected in parallel with the first so that in the event of failure of the former the resulting increase in voltage applied to the latter causes it to start. The discharge devices may be of the cold cathode type with their grids connected to a tapping on an impedance 4 connected across the lines. In an alternative arrangement, Fig. 2 (not shown), gaseous thermionic valves are used, and a secondary winding is associated with the impedance 4 for supplying heating current to the cathodes.
Patent GB-665486-A (GB)
Title: Improvements in temperature measuring devices
Filed: 1949-03-06
Abstract: 665,486. Measuring temperature electrically. CHAMBERLAIN, J. March 10, 1950. [March 6, 1949] No. 12110/49. Class 40 (i). [Also in Group XX] To measure or control the temperature of a body, a metal block having a cavity in one face thereof is brought close to the body so that, for practical purposes, the cavity is totally enclosed by the boundary layer comprising the walls of the open ended cavity and the body. A differential heat sensitive element located within the cavity and responsive to the temperature difference between the body and the block is used to control means for bringing the temperature of the block to that of the body, when the temperature of the block, measured, in known manner is used to indicate or control that of the body. The differential heat sensitive element may comprise two similar platinum strips connected in the arms of a Wheatstone bridge, one of the strips being so disposed as to be.heated primarily by the block while the other is heated primarily by the external body, or a thermocouple could be used. The bridge is used to control e.g. a heating element to bring the block to the same temperature as the body and the block temperature is measured e.g. by a thermocouple or resistance thermometer with auxiliary apparatus.