baber/WOPTO huggingface dataset:
Patent GB-1462393-A (GB)
Title: Suppressing sound from a fluid flowing in a duct
IPC: F16L55/02
Filed: 1974-01-21
Abstract: 1462393 Silencing gaseous flows; gas turbine ducted fan engines - silencing SOC NATIONALE INDUSTRIELLE AEROSPATIALE 21 Jan 1974 [22 Jan 1973] 02658/74 Headings F1B; F1G and F1J A sound suppressing structure 100 for mounting in a duct to suppress sound from fluid flowing through the duct comprises perforated partition walls for sub-dividing into similar multiple passages 25 the whole cross-sectional area of the duct fluid passage, perforations 30 extending right  through the walls, the cross-sectional area of the passages 25, the wall thickness and the size of the perforations 30 being such that there is resonance between each stream and the stream in the adjacent passages to silence the streams by destructive interference. The walls may be formed by welding folded sheets such as 26 and 27 to flat sheets such as 28 along weld lines 29. The flow channels may be triangular, rectangular, e.g. square, hexagonal or circular. Silencing of gas flowing through the channels is by resonance between adjacent channels via the perforations 30. In Fig. 12 a gas turbine ducted fan by-pass engine 200 has structures 33, 35, 37 with perforated partitions to silence the various gas flows.
Patent GB-718392-A (GB)
Title: Drawing head
IPC: B43L13/08
Filed: 1952-02-01
Abstract: 718,392. Drawing heads. KUHLMANN, F. W., [trading as KUHLMANN KOMMANDIT-GES. WERKSTATTEN FUR PRAZISIONSMECHANIK UND MACHINENBAU, F.]. Feb. 1, 1952 [Feb. 2, 1951], No. 2677/52. Class 97(3) In a drawing head of the kind comprising a set square pivoted to a graduated disc which is itself pivoted to a base plate carried by a parallel linkage, the two pivotal axes being coincident, a notched disc is fixed to the graduated disc and forms a common part of two locking devices, one of which is carried by the base plate and when operative prevents adjustment of the graduated disc and a set square relative to the base plate of the drawing head, while the other is carried by the set square and when operative prevents adjustment of the set square alone relative to the graduated disc. Each of the two locking devices may comprise a clamp adapted to engage the rim of the notched disc and a lever-operated and spring-loaded pawl adapted to engage the notches. As shown, the drawing head comprises a base plate 1 pivoted to a parallel linkage (not shown) on a drawing board and having an arm 25 which extends between a graduated disc 2 and a notched disc 6 rigid therewith and which terminates in a bush 26 on which fits a sleeve 29 carried by a plate 28 seated in an aperture of the disc 2 and carried by an operating knob 8. The plate 1, the discs 2 and 6, and the knob 8 are held together by the bolt 27. A set square 3 carries arm 30 secured to the plate 28, and the arm 30 carries a bracket on which is pivoted a lever 10 having a bent end spring-urged into engagement with the notches in the disc 6 and releasable therefrom by operation of a rocking lever 34 to permit knob 8 to be rotated to rotate the set square 3 alone to an angular position defined by the co-operation of an index mark on the arm 30 with a scale on the disc 2. Release of the lever 34 holds the set square in adjusted position. The set square may be fixed in positions for which no notches are provided by means of a clamping bolt having a large hexagon head 14. If desired, the head as a whole may be rotated relative to the base plate 1 by releasing the spring-urged pawl 16 pivoted to the arm 25 from a notch in the disc 6 by rotating a cam 20 in a square aperture 19 in the pawl 16 by a lever 21, and again rotating the knob 8 until an index mark on the arm 25 registers with the desired scale reading on the disc 2. On turning the lever 21, the cam surface 32 on the lever 21 engages a spring-loaded detent 33 to increase the resistance to turning and indicate that the pawl 16 has moved out of a notch. The lever 21 may be turned so far that the cam 20 prevents pawl 16 from moving into a notch, whereupon any angle may be set, including intermediate positions between the notches. Specification 663,024 is referred to.
Patent GB-1433742-A (GB)
Title: Compounds having a physiological cooling effect and compo sitions containing them
IPC: A23L27/20
Filed: 1973-01-18
Abstract: 1433742 Tobacco compositions; food preparations WILKINSON SWORD Ltd 19 July 1973 [20 July 1972 18 Jan 1973] 33993/72 and 2686/73 Headings A2B and A2C [Also in Divisions A5 and C5] A composition capable of stimulating the cold receptors of the nervous system in the human body comprises a carrier and a stimulant which is a sulphonamide or sulphonimide of formula RSO x NR 1 R 2  wherein R is a secondary or tertiary C 5-12  group, or an alkylcycloalkyl group of formula: wherein R* is a C 1-5  group, n is from 1 to 4, R 1  and R 2  when taken separately are each H, C 1-12  alkyl or hydroxyalkyl, and together provide no more than 12 carbon atoms, and when R 1  is H, R 2  may be alkyl carboxy alkyl of up to 12 carbon atoms, R 1  and R 2  when taken together, represent an alkylene group of up to 6 carbon atoms, the ends of which are attached to the nitrogen atom to form a nitrogen heterocycle the carbon chain of which may be interrupted by oxygen and x is 1 or 2. The composition may be applied topically. With appropriate carriers, the composition may take the form of a lotion, an ointment, a dentifrice, a toilet composition, a shampoo or a foamed shaving soap. The composition may be impregnated into tobacco or tissue paper. The stimulant may also find utility in foodstuffs and beverages. Exemplified stimulants are N, N-diethyl 3-methyl pent-3-yl sulphinamide, N-n-hexyl 2-methyl pent-3-yl sulphinamide, N-isopropyl hex-3-yl sulphinamide, N, N-diethyl pent-3-yl sulphinamide, N-noctyl hex-3-yl sulphinamide, N, N-diethyl 3- methyl pent-3-yl sulphonamide, N, N-di-npropyl 2-methyl pent-3-yl sulphinamide, N- ethyl oct-2-yl sulphinamide, N-n-hexyl 3- methyl pent-3-yl sulphinamide, N-methyl-N- (#-hydroxyethyl)-2, y-dimethylnon-5-yl sulphinamide, N, N-dimethyl p-menthane -3-sulphonamide, N (p-menthane-3-sulphonyl) glycine ethyl ester, N (2-hydroxyethyl)-p-menthane-3- sulphonamide, N, N-2-trimethyl cyclohexane sulphinamide, N, N, 2, 5-tetra methyl cyclohexane sulphonamide, N-(2-hydroxyethyl)-pmenthane-3-sulphinamide, N, N-diethyl-3- methyl cyclohexane sulphonamide, N-n-butyl- 2-methyl cyclohexane sulphinamide, N-(2, 5- dimethylcyclohexane sulphonyl) morpholine N-n-hexyl 1-methyl cyclohexane sulphinimide, N, N-diethyl-1-methyl cyclohexane sulphinimide, N-ethyl p-menthane-3-sulphinamide and N-n-butyl-2-methyl cyclohexane sulphonamide.
Patent GB-701671-A (GB)
Title: Electronic means for automatic control of the frequency of an oscillation generator
Inventor: HESTER FRANK ALLEN
IPC: H04N1/36
Filed: 1952-02-01
Abstract: 701,671. Electric synchronous movements. FAXIMILE, Inc. Feb. 1, 1952, No. 2710/52. Class 40 (3). [Also in Groups XXXV and XL(c)] In an automatic frequency control system for an oscillation generator, the degree of overlap between synchronizing pulses and pulses derived from the generator is used to determine the voltage on a condenser, and this voltage determines the frequency of the oscillator. The oscillator frequency may be n times the synchronizing pulse frequency, and the oscillator current may drive a synchronous motor geared to the recording drum of a facsimile telegraphic receiver. As shown in Fig. 1, a received facsimile signal is detected in a radio receiver 10 and the picture elements are amplified and applied across electrodes 13, 14 one of which is of helical form and mounted on a drum driven by a synchronous motor 15. A prepared recording strip 16 is traversed between the electrodes 13, 14. The synchronizing pulses are separated and applied in positive sense to the grid of a gaseous discharge tube 60, the anode circuit of which includes a condenser 20 whose voltage determines the frequency of a local oscillator 17. The sine-wave output of the oscillator is squared at 26, and is fed to a frequency-dividing circuit 29, so that every nth pulse is selected at the cathode of the gas tube 30 and passed through a limiter-invertor 50 to the cathode of the tube 60. During overlap of the two pulses, the tube 60 conducts and the condenser 20 receives a negative charge proportional to the period of overlap. This charge is retained during the following picture line. The leading edge of the next locally-produced pulse is applied through an invertor 80 and differentiating network 81 to the grid of a hard valve 85 so that current passes from a source B+ and cathode resistor 88 to neutralize the negative charge on the condenser 20. When synchronism is achieved, the pulse overlap may be 50 per cent of the width of either pulse, so that the degree of overlap rises or falls according as the sync. pulses are early or late relatively to the local pulses. Thus the overlap determines the voltage on the condenser 20 thereby adjusting the frequency of the oscillator 17, which supplies current through an amplifier 18 to the synchronous motor 15. In a modified arrangement, Fig. 5, the oscillator output is squared in a valve 132 and fed to a push-pull valve pair 147, 148 which energizes relay coils 153, 154 alternately. The relays act oppositely on a vibrating contact 160 to supply current of alternating polarity from the sources E to the motor 15.
Patent GB-707397-A (GB)
Title: Improvements in oil burners for furnaces and the like
IPC: F23D11/10
Filed: 1951-02-03
Abstract: 707,397. Liquid-fuel burners. STINCHCOMBE, H. H. Feb. 1, 1952 [Feb. 3, 1951]. No.2720/51. Class 75 (1) In an oil burner in which a fuel spray nozzle 16 is surrounded by an internally conical nozzle 12 supplying an air stream converging in front of the fuel nozzle 12, the latter is rotatable by part of the air stream directed by a venturi nozzle 29 on to peripheral vanes 37 on the rear part thereof which is surrounded by the outlet end of the venturi tube. The fuel nozzle 16 is rotatably mounted on a fuel supply tube 15 extending through a conduit 10 carrying the air nozzle 12 and supplied with air through a valve controlled inlet 11. A forward portion 19 of the air conduit 10 is adjustable longitudinally relatively to the remaining portion to adjust the air nozzle 12 relatively to the fuel nozzle 16, the part 19 being secured in the desired position by a screw 22. For regulating the air flow through the nozzle 12 the latter is rotatable relatively to the part 19 and has an internal flange 31 provided with openings 32, which by the rotation of the nozzle 12 are brought into varying degrees of alignment with air passages 28 formed between longitudinal ribs 27 in the part 19. The fuel is discharged from the nozzle 16 through circumferentially spaced orifices 38 in a hollow cap screwed on to the front end of the nozzle body.
Patent GB-396383-A (GB)
Title: Improvements relating to alloy steel articles or parts of machinery
Filed: 1932-01-29
Abstract: Articles or parts of machinery which require a high strength at atmosphere and elevated temperatures such as valves for internal combustion engines &c. are made from an austenitomartensitic transition alloy steel containing 0,3 per cent of carbon, 10 of nickel, 4 of chromium and 18 of tungsten.  The nickel may be replaced wholly or partly by manganese and the tungsten wholly or partly by molybdenum or vanadium.  The alloy steel is first given an austenitic structure by quenching from a sufficiently high structure to render the structure austenitic, e.g. about 1200 DEG  C., and then reheated to a temperature above the austenite-martensitic critical range, e.g. about 800 DEG  C.
Patent GB-755430-A (GB)
Title: Improvements in towropes
IPC: B60D1/18
Filed: 1954-01-30
Abstract: 755,430. Towing ropes. KNOWLES, W. Jan. 28, 1955 [Jan. 30, 1954], No. 2844/54. Class 109. A car &c. tow rope comprises a wire rope I furnished with an eye 2 at each end formed by turning back the end of the rope and clamping it with a ferrule 3, a detent 4 being attached to each eye 2 by passing the rope through an aperture 5 therein, the rope also being furnished, with loops 7 between its centre and the eyes 2, into which the detent 4 may be passed to form bights 8 about parts of the towed and towing vehicles. The bights 8 are preferably wound with protective canvas-reinforced rubber tubings and the loops 7 may be formed from the rope 1 and similar rope portions held adjacent thereto by the ferrules 3.
Patent GB-1513526-A (GB)
Title: Dye dispersions
IPC: C08G18/38
Filed: 1977-01-20
Abstract: 1513526 Dye dispersions; coloured polyurethanes IMPERIAL CHEMICAL INDUSTRIES Ltd 20 Jan 1977 [26 Jan 1976] 2888/76 Heading C3R A method of forming a dispersion of a waterinsoluble organic dye containing at least one isocyanate-reactive group in a polymeric polyol comprises mixing the dye in the form of an aqueous paste with the polymeric polyol and, if necessary, separating the polyol phase from the aqueous phase, e.g. by distillation. Suitable dyes are of the azo, anthraquinone and nitroseries, especially disperse dyes. The polyols usually have from 2-8 hydroxyl groups and molecular weights of from 300-10,000, and may be polyester or polyether polyols, e.g. polyoxypropylene polyols and poly (oxypropyleneoxyethylene)polyols. The dispersions can be reacted with organic polyisocyanates, e.g. tolylene diisocyanate and diphenylmethane diisocyanate, optionally in conjunction with polyols that do not contain dispersed dye and optionally with conventional ingredients of polyurethane systems, to form coloured polyurethanes, particularly coloured cellular polyurethanes. In the examples dye dispersions are prepared as above from a polypropylene glycol of M. Wt. 2000 and an aqueous paste of a dye of the formulae the water being subsequently removed by distillation. The resulting dispersions are used to make microcellular polyurethane shoe soles.
Patent GB-524338-A (GB)
Title: Multi-service water heating plant
IPC: F24D3/08
Filed: 1939-01-27
Abstract: 524,338. Domestic hot-water supply systems. SOC. ANON. ING. PAOLO KIND & CO. Jan. 27, 1939, No. 2890. Convention date, Jan. 29, 1938. [Classes 64 (i) and 64 (ii)] In a hot-water circulation system comprising a boiler 1, Fig. 1, supplying hot water to a heating system through a pipe 3 and to a supply system through a pipe 12, the supply pipe 3 is connected to the boiler at two different temperature zones 7, 8 and a valve 11 in the connection with the hotter zone is controlled in accordance with external temperature conditions without affecting the flow through the supply pipe 12. The water for the supply system may be heated in a coil in the upper part of the boiler, and the different temperature zones in the boiler may be separated by a partition. In a sectional boiler, circulation between sections of two zones is prevented by a plug in the water connection between the sections. A pivoted valve 31, Fig. 16, in the supply pipe 3 is operated by a thermic element 42 in a casing open. to the hot water on both sides of the valve: The thermic element acts on the valve against the pressure of a rod 38 pressed upwards by a spring 39.
Patent GB-297274-A (GB)
Title: Improvement in overshoe
IPC: A43B3/20
Filed: 1928-01-30
Abstract: 297,274. Kenyon, C. Jan. 30, 1928. Overshoes. - The upper of a flexible rubber overshoe is made from a pattern sheet of the shape shown in Fig. 6, the intermediate wing portions 16, 17, being bent inwards and overlapped to reinforce the arch portion, as shown in Fig. 3. The parts 10 of the pattern sheet adjacent the opening 10<b>, which is preferably tapered form the sides of the upper, the ends 20 being cemented together at the heel portion. Inner and outer soles 11, 12 extending into the arch portion are connected to the upper by rubber strips 15, 13 respectively, the latter being a continuation of the outer sole 12. A reinforcing strip 14 is provided at the toe, and strips 18, 19 for a similar portion around the top and bottom openings of the upper.
Patent GB-399694-A (GB)
Title: Improvements in or relating to picture television and like modulated carrier signalling systems
IPC: H04N1/00
Filed: 1933-01-30
Abstract: 399,694. Copying-telegraphy. MARCONI'S WIRELESS TELEGRAPH CO., Ltd., Marconi House, Strand, London.- (Assignees of Shore, H.; 19, Pingry Place, Elizabeth, New Jersey, U.S.A.) Jan. 30, 1933, No. 2913. Convention date, Jan. 30, 1932. [Class 40 (v).] A multi-electrode valve 27 has an oscillatory circuit 39 in series with the plate 35 and applied operating-voltages such that the valve oscillates as a dynatron, and modulation is effected by a light-sensitive cell 13 subjected to the light variations of the picture 7 and connected between the control grid 23 and the cathode 25. The oscillating-frequency of the valve is independent of the modulating potentials. An amplifier 43 is capacitively coupled to the oscillator.
Patent GB-493738-A (GB)
Title: Improvements in or relating to the determination of relative plummet deviations for prospecting for minerals and other subterrestrial deposits
IPC: G01V7/00
Filed: 1938-01-31
Abstract: 493,738. Measuring gravitational forces. BOLIDENS GRUVAKTIEBOLAG. Jan. 31, 1938, No. 2954. Convention date, March 19, 1937. Drawings to Specification. [Class 97 (iii)] In measuring the variations in the horizontal component of the force of gravity from relative plummet deviations, the image of a fixed object, e.g. a scale or point source of light, is reflected into a fixed telescope by a mirror or prism attached to the suspension cord of the plummet. The plummet is moved to a number of different stations whilst the telescope and scale remain fixed. The plummet and mirror may be housed in a temperature regulated casing provided with a window. Alternatively, the telescope, scale, plummet, and mirror may all be encased in a large evacuated and temperature regulated tube.
Patent GB-1448963-A (GB)
Title: Bis-trifluoro-methylimino-imidazolones process for their preparation and their use as acaricides insecticides or fungicides
IPC: A01N43/50
Filed: 1975-01-23
Abstract: 1448963 Bis - trifluoromethylimino - imidazolones BAYER AG 23 Jan 1975 [24 Jan 1974] 2979/75 Heading C2C Bis - trifluoromethylimino - imidazolones of general formula in which each R, same or different, is H or methyl; R<SP>2</SP> is a system, optionally substituted by halogen or C 1-4  alkyl or alkoxy, of 2 or more C rings which can be either bridged or fused or linked directly or via -O- or an alkylene bridge which is optionally interrupted by -O-, a combination of bridged, fused and linear types of linking being possible, at least one of the C rings being non-aromatic in each case; R<SP>3</SP> is H; or alkyl, alkenyl or alkynyl with up to 8 C atoms, optionally substituted by halogen or C 1-4  alkoxy; or cycloalkyl optionally substituted by C 1-4  alkyl; or aralkyl with up to 4 C atoms in the alkyl part, optionally substituted by halogen or C 1-4  alkyl, haloalkyl or alkoxy; or aryl with up to 14C atoms, optionally substituted by halogen or C 1-4  alkyl, haloalkyl or alkoxy ; or has one of the meanings of R<SP>2</SP>; each x, same or different, is 0 or is an integer of 1-4; each of, same or different, is 0 or 1, except that y = 0 if x = 0, and each z, same or different, is 0 or an integer of 1-4, are prepared by reacting a urea of general formula with F 3 C-N = CFCF = N-CF 3  in the presence of an HF acceptor at -50 to +120 C. Amongst numerous examples the compound 1 - [(5,6,7,8 - tetrahydro) - naphthyl] - 3 - (2- methoxyethyl) - 4,5 - bis - trifluoromethylimino - imidazol - 2 - one is prepared. Insecticidal, acaricidal or fungicidal compositions comprise as active ingredient a compound of Formula I above in admixture with a solid or liquefied gaseous diluent or carrier or with a liquid diluent containing a surface-active agent.
Patent GB-112847-A (GB)
Title: Improvements in Closures for Bottles and the like.
Inventor: BELL ETHEL MARGARET
IPC: B65D45/16
Filed: 1917-03-01
Abstract: 112,847. Bell, E. M., and Bell, M. J. March 1, 1917. Stopper, screw and like. - A swing stopper for bottles and like vessels is formed with a flange A and an integral screw portion C, which is slotted near its upper end for the passage of the wire clip D and provided with a nut B. The stopper is made of vulcanite, china, &c., and fitted with a rubber ring F. Specification 17720/91 is referred to.
Patent GB-396763-A (GB)
Title: Structural bracing means for vehicle chassis frames
IPC: B62D25/00
Filed: 1932-02-02
Abstract: 396,763. Reinforcing motor-vehicle frame members. HUPP MOTOR CAR CORPORATION, 3641, East Milwaukee Avenue, Detroit, Michigan, U.S.A. Feb. 2, 1932, No. 3086. Convention date, Feb. 2, 1931. [Class 108 (ii).] The forward end portions of chassis longitudinals, which project beyond the body portion in the conventional type of motor vehicle, are braced so as to resist twisting or other relative movements by angularly-arranged tension and compression members extending upwardly therefrom to a common apex or to form with each other and/or portions of the body a rigid unit. In the simplest form a single pair of stays extends from the frame longitudinals at the base of the radiator to the centre of the upper edge of the dashboard, forming, with the front cross-frame member, a rigid triangle. In Figs. 1 and 2, a similar triangular frame 20 is shown more steeply inclined, its apex being joined to a pair of diverging stays 21 attached at their rear ends to the dashboard and thus forming a second triangle. From the dashboard, further stays 23 may proceed downwards within the vehicle body 11 to the longitudinals. From the common apex of the triangles, reinforcing stays 24 may extend to the radiator shell. In the construction shown in Fig. 9, the apex of the front triangle 26 is connected to the apex of a triangle 29 extending vertically from the longitudinals 13 in the vicinity of the dashboard. The stays are preferably formed of tubular rod welded &c. together at the apices and bolted to the frame members &c. so as to be readily detachable.
Patent GB-123399-A (GB)
Title: Improvements in and relating to Sounding Apparatus.
Inventor: BECKETT REGINALD
IPC: G01C13/00
Filed: 1918-02-21
Abstract: 123,399. Beckett, R. Feb. 21, 1918. Sounding-apparatus.-In the apparatus contained in the casing a, a column of mercury is caused to contact with one or other of a series of electric terminals d<1> according to the depth of the instrument. The mercury is contained in the chamber c and expelled therefrom along the channel d by the expansion of the flexible diaphragm c<1> when the piston f is raised, against the spring h, by water pressure on the diaphragm g. The channel d ends in a chamber e, the air pressure in which can be regulated. The spring h may be replaced by a volute spring attached to the diaphragm g. In place of the diaphragm g the piston rod f<1> may be enclosed in a light piston made watertight in the casing by a surrounding flexible tube. The chamber c<1> may take the form of a bellows operated by the piston f<1> and connected at its other end with the channel d. The casing is fitted with a head b to which the electric cables are connected.