baber/WOPTO huggingface dataset:
Patent GB-502283-A (GB)
Title: Improvements in and relating to collapsible cartons
IPC: B65D5/50
Filed: 1938-02-15
Abstract: 502,283. Cartons. PILLIVANT, E. T. and FARO, H. C. Feb. 15, 1938, No. 4662. [Class 18] A collapsable carton with four sides, a top, and a bottom, is provided with two opposite spaced-in inner sides and a spaced-in inner bottom which minimize breakage of the contents. The carton is made up from a blank comprising sides 1, 3, 7 folded to tubular form, the spaced-in sides being folded from flaps 2 and flanges 2a which space the flaps from the sides 1. The false bottom is constituted by a flap 4 and its flange 4a cut-out of the side 3, and the opening thus left can be covered over by a flap 8 stitched &c. to the side 7, the flap 8 being held closed by tongues 9 which are inserted between the vertical parts of the side 3, and the adjacent flanges 2a. The contents of the carton are held between apertures 6 in the flaps 2.
Patent GB-1113181-A (GB)
Title: Absorption refrigeration
IPC: F25B15/04
Filed: 1966-02-02
Abstract: 1,113,181. Refrigerating. CARRIER CORPORATION. 2 Feb., 1966 [30 March, 1965], No. 4674/66. Heading F4H. The subject-matter of this specification is identical with that described with reference to Fig. 1 of Specification 1,113,182, but the claims are concerned with the location of the weak solution conduit in the analyzer.
Patent GB-1146231-A (GB)
Title: A device for mooring watercraft
IPC: E02B3/24
Filed: 1967-01-31
Abstract: 1,146,231. Mooring ships at quays, landing stages and the like. J. G. HEDMAN. 31 Jan., 1967, No. 4739/67. Heading B7S. [Also in Division E1] Means for mooring watercraft comprising at least one jib or beam 4 pivotally connected to a quay or landing stage at 3 to enable it to follow tidal movements and wave motion, the jib being of angular form, has one arm 4a approximately horizontal in use whilst the other 4b is approximately vertical and is provided with at least one buoyant body or float 5 adjustable into different positions along the vertical arm. The float consists of a body 8 of light material e.g. a cellular or spongy plastics, in a framework 7 with bushes enabling it to be slid along the arm 4b and secured thereto by set screws 10.
Patent GB-1070883-A (GB)
Title: Engine handling method and apparatus
Inventor: RODGERS LEONARD JOHN
IPC: B64F5/00
Filed: 1965-02-04
Abstract: 1,070,883. Guiding loads during lifting. ROLLS-ROYCE Ltd. Jan. 28, 1966 [Feb. 4, 1965], No. 4862/65. Heading B8B. An apparatus for moving an aero engine 10 from a mobile cradle 15 into an engine housing 13 comprises a guide means 35 detachably secured to the engine housing and depending therefrom, a manual hoist 23 adapted to lift the engine 10 and rollers 29 on the engine for engaging the guide means 35 during hoisting thereof into the housing. The guide means 35 comprising one or more rails bolted at 36 in end-to-end relationship and connected through limbs 37 and pegs 39 to lugs 38 on the housing 13. The rollers 29 engaging the rails 35 for horizontal stabilization of the engine during lifting, are carried by a support 28 detachably secured to flanges 30, 32 on the engine. The lifting cable 27 of the hoist 23 is hooked on to a ring 22 slidable or rollable along an arcuate rail 21 of a sling 20 detachably attached to the intake duct 18 of the engine. The ring 22 moves along the rail 21 as the engine is raised from the vertical position shown into alignment with the axis 13<SP>1</SP> in the housing. The hoist 23 is mounted on a tripod 24 detachably attached to the upper open end of the housing 13. In a modification, Fig. 3 (not shown), one or both of the guide supporting links (37) are associated with screw means whereby the position of the engine can be adjusted once in the housing.
Patent GB-1530092-A (GB)
Title: Arrangement including a gas discharge flash lamp
IPC: H05B41/32
Filed: 1977-02-07
Abstract: 1530092 Operating gas discharge flash lamps PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 7 Feb 1977 [10 Feb 1976] 04904/77 Heading H2H In an arrangement comprising a gas discharge flash lamp 15 (e.g. a photographic flash unit), with terminals 5, 6 connected to a piezoelectric element 1 which supplies in its unloaded state mainly one starting pulse of non-changing polarity (Fig. 2) for igniting the lamp, terminals 5, 6 are interconnected by a series arrangement of a rectifier 11 and a parallel arrangement of an inductive 12 and a capacitive impedance 13, the parallel arrangement constituting an undercritically damped circuit (Fig. 3), a connection from the starting electrode 14 to a main electrode 16, 17 of the lamp including the inductive impedance but not including the rectifier, and the pass direction of the rectifier being chosen so that it passes a pulse produced at terminals 5, 6 with the same polarity as the starting pulse of the piezoelectric element. It is stated that the above arrangement enables the lamp to be ignited in a more reliable manner than hitherto since voltage pulses of alternating polarity (Fig. 3) are supplied to it.
Patent GB-1170452-A (GB)
Title: Improvements relating to Camera Television Systems
Inventor: JAMES IVANHOE JOHN PENFOUND
IPC: H04N9/69
Filed: 1966-02-04
Abstract: 1,170,452. Colour television. ELECTRIC & MUSICAL INDUSTRIES Ltd. 3 Feb., 1967 [4 Feb., 1966], No. 4909/66. Heading H4F. A circuit arrangement responds to a wide band luminance signal Y w  from a luminance camera tube la together with narrow band colour component signals R n , G n , B n  from colour camera tubes 2d, 3d, 4d and functions to produce wide band colour signals R<SP>1</SP>, G<SP>1</SP>, B<SP>1</SP> similar to those produced by a three-tube colour camera. The circuit produces a narrow band luminance signal Y n  by combination of the colour component signals in a matrix circuit 9 and, after gamma correction of all the signals in circuits 5-10 and inversion of the narrow band luminance signal in circuit 11, combines the signals in adders 12, 13 and 14 to produce signals R<SP>1</SP>= R n 1/γ + Y w 1/γ-Y n 1/γ, G<SP>1</SP> = Gn1/γ +Y w 1/γ-Yn1/γ and B<SP>1</SP>=B n 1/γ+Y w 1/γ-Y n 1/γ. Since Y w  - Y n  = Yh, i.e. high-frequency components, the signals R<SP>1</SP>, G<SP>1</SP> and B<SP>1</SP> are wide-band signals similar to those issuing from a three-tube camera. The final signals may be applied to a monitor and/or encoded into N.T.S.C., P.A.L. or SECAM (Registered Trade Mark) form. The narrow bandwidth of signals R n , G n  and B n  may be a consequence of reduced definition in the camera optical systems or the use of large or defocused electron scanning beams.
Patent GB-685612-A (GB)
Title: Colour photographic process
IPC: G03C7/18
Filed: 1949-02-23
Abstract: 685,612. Colour photography. GANGUIN, K. O. HADDOCK, N. H., MACDONALD, E., and IMPERIAL CHEMICAL INDUSTRIES, Ltd. Feb. 23, 1950 [Feb. 23, 1949], No. 4918/49. Drawings to Specification. Class 98 (ii). A multilayer false colour transparency carrying colour photographic records in yellow, magenta and cyan dyestuff in three separate layers as described in Specification 685,607 is provided with a yellow styryl dyestuff masking image in the magenta layer as by the method of Specification 651,059 instead of the black and white masking images of Specification 685,607. This masked false colour record is printed on to a corresponding false colour material which has colour formers in the layers and the latter is processed to provide a colour corrected print or transparency. Specifications 486,848 and 489,162 also are referred to.
Patent GB-582933-A (GB)
Title: Improvements in or relating to apparatus for detecting aircraft or other objects
IPC: G01S1/02
Filed: 1941-04-16
Abstract: 582.933. Wireless bearing-determining apparatus. STEVENS, R. J. April 16, 1941, No. 4939. [Class 40 (v)] Apparatus for indicating the bearing of a distant object comprises means operated for example by a motor d, for rotating a directional radio beam from a transmitter a and also a compass scale g in synchronism, and an illuminating device such as a Neon lamp f which is momentarily illuminated when the reflected wave actuates a receiver b, the light being focussed on the scale. The frequency of illumination is such that the scale appears to be continuously illuminated at the point indicating the compass bearing of the reflecting object. The axis of rotation may be tiltable, or apparatus providing separate beams moving respectively in, say, horizontal and vertical planes may be used.
Patent GB-815235-A (GB)
Title: Improvements in and relating to the preparation of oximes
Filed: 1956-02-17
Abstract: Oximes of the type: <FORM:0815235/IV (b)/1> where either (a) X is an acyl, carboxyl, carbo-alkoxyl, nitro, cyano, carbimino or aryl or substituted aryl group and Y is hydrogen, an alkyl, substituted alkyl, acyl, carboxyl, carboalkoxyl, nitro, cyano, carbimino, aryl or substituted aryl group; or (b) X is a carbonyl group and Y is a polymethylene group and the groups are bonded together, are made by reacting gaseous nitric oxide with a compound of the type X-CH2-Y at from 50 DEG  to 150 DEG  C. inclusive and from 100 to 400 p.s.i.g. in the presence of a variable-valence metal salt or complex salt catalyst.  Compounds of the above type specified are acetone, methyl ethyl ketone, ethyl isobutyl ketone, methyl cyclohexyl ketone, methyl benzyl ketone, cyclohexanone, acetophenone, acetylacetone, phenylacetonitrile, nitrophenylacetonitrile, malononitrile, ethyl cyanoacetate, b -keto acids and esters, b -halo acids, esters and nitriles, b -diketones, malonic acid and its derivatives, and arylacetic acids, esters and derivatives. Catalysts specified are sulphides, halides, cyanides, pyridinium halides, and nitrosyls of manganese, chromium, cobalt, nickel, iron, copper and tin.  A mutual solvent for the catalyst and the compound of the type X-CH2-Y may be used and those specified are water, ammonium hydroxide, alcohols, aqueous alcohols, pyridine, triethylamine and trimethylamine.  Excess nitric oxide may be used if desired with a diluent such as nitrogen or steam.  Ammonia oxidation gases from which other nitrogen oxides have been removed may be used.  The reaction may be conducted batchwise in an autoclave or continuously by passing a mixture of the compound of the type X-CH2-Y and nitric oxide co-currently or countercurrently through a reaction vessel containing a supported catalyst.  In examples, diacetyl monoxime is made from methyl ethyl ketone and alpha-oximino phenylacetonitrile from phenylacetonitrile.
Patent GB-218953-A (GB)
Title: Improvements in gyroscopic indicators particularly for use in aircraft
IPC: G01C19/42
Filed: 1924-02-26
Abstract: 218.953. Sperry Gyroscope Co. Feb. 26, 1924. Addition to 196,296. Gyroscopic apparatus.-The parent Specification describes a gyroscopic instrument for indicating the angular velocity of pitching of an aircraft. The present invention consists partly in improvements in that invention and partly in the application of features thereof to a turn indicator. In the Figures, which show a turn indicator, the air-driven gyroscope 9 is mounted in a ring 7 which is mounted on horizontal fore and aft pivots 5, 6 in a frame 2 so as to be capable of precessing against the action of a spring 10. the tension of which can be adjusted by a screw 11. The ring 7 is connected by an arm 18, pin 17 and arm 16 to a spindle 15 carrying a pointer 13 which indicates on a scale 14 the velocity of turning. The frame 2 is of skeleton form and can be enclosed by a cover 3 slidable thereon. As in the parent Specification, air for driving the rotor is introduced through the hollow bearing 5 which has an extension 34 passing through an aperture 58 in the cover 3. For withdrawing air from the casing, a Venturi tube 36, preferably of compound form, is connected thereto by tubes 38, 38<1>, a speed-regulating device 39, and a cock 19. The cock is operated by a handle 26 having an extension 29 projecting over the scale, which is provided with markings 30 to indicate whether the cock is open or closed. The speedregulating device. 39 acts automatically to maintain a constant speed of the rotor notwithstanding variations in the air speed of the craft, and comprises a cylindrical casing 40, Fig. 6, in one end of which is seated a cock 42 through which the tubes 38, 38<1> communicate, an opening 43 connecting the tube 38<1> with a compartment 44 in the casing 40. This compartment is normally separated from another compartment 45 by a valve 46 controlled by an adjustable spring 48. When the reduction of pressure, in the compartment 44 produced by the Venturi tube is sufficient, the valve opens and air enters through an aperture 53 to reduce the negative pressure and thus reduce the speed of the gyroscope. In order that an observer may indicate to the pilot the turning required to follow a particular course, a pinion 62 gears with a rack 61 carrying a pointer 60 moving over the scale 14. The pinion 14 is operated by the observer through a flexible shaft. 63, and the pilot steers the craft until the indication of the pointer 13 is the same as that of the pointer 60.
Patent GB-812225-A (GB)
Title: Improvements in or relating to electric heating devices
IPC: H05B3/16
Filed: 1957-02-13
Abstract: 812,225. Electric heating resistors BALESTRINI, R. H. Feb. 13, 1957, No. 4962/57. Class 39(3) An electric heating device comprises a heating element in the form of a thin filmlike strip of conducting material wound helically round at least two spaced rotable members at least one of which is movable to vary the distance between them where they are mounted on a frame, a resilient member being connected to each movable member so that the strip is maintained in tension. As shown, a resistive strip 1 is helically wound about grooved insulating rollers 4, 5 mounted respectively on a fixed support 6 and on arm 7 extending from a bell crank lever 8, the latter being pivotably mounted on a fixed support 10 and tensioned by a spring 11 so that any slack resulting from expansion of the strip on heating is taken up. The ends of the strip are connected to supply leads 15 and 16 through rings 14 on roller 4. Two such devices may be mounted side by side with the movable rollers contiguous (Figs. 3 and 4, not shown), and with the pivoted supporting arms connected together by a single spring which tensions both strips. In a modification one or more strips may be wound helically about two or more of at least three rotable members disposed so that the strip material between any two members forms one side of a polygon, at least one rotable member being movable with respect to the others and connected to a resilient member to keep the strip material in tension.
Patent GB-778493-A (GB)
Title: Production of acrylic acid
Inventor: ALLENBY OWEN CLEMENT WENTWORTH
IPC: C07C57/04
Filed: 1956-02-17
Abstract: Acrylic acid is produced by subjecting succinic anhydride vapour, either alone or together with an inert gas, to pyrolysis at 500-800 DEG  C., preferably 650-750 DEG  C.  The reaction may take place in the presence of a catalyst such as iron filings, but generally no catalyst is required.  It is preferred to employ a temperature of 700 DEG  C. and a contact time of 1 to 2 seconds.  In an example, succinic anhydride is pumped from a heated storage vessel to an evaporator and the vapour is mixed with an inert gas and passed through a vertical glass tube surrounded by a steel tube and heating element.  Results show the conversion to acrylic acid at temperatures from 500-750 DEG  C. and different contact times.
Patent GB-1132436-A (GB)
Title: Improvements in or relating to rotary vacuum pumps
IPC: F02B53/00
Filed: 1966-02-04
Abstract: 1,132,436. Rotary vacuum pumps. LEYBOLDHERAEUS G.m.b. H & CO., K. G. Feb. 4, 1966 [Feb.4, 1965], No.5052/66. Heading F1F. A vacuum pump comprises a fixed casing and a rotor revolvable therein, wherein the rotor has a hypotrochoidal contour and includes a ring gear with internal teeth engageable with and rolling on a fixed gear and the casing has an interior contour corresponding to the outer envelope curve of the rotor and at least one nodal point always contacting the rotor contour during each revolution thereof, a suction port on one side and a discharge port on the other side of the or each said nodal point and an oil seal between the or each said nodal point and the rotor. In one embodiment, Fig. 3 (not shown) the ratio K of the diameter of the outer rolling circle to that of the inner fixed circle producing the hypotrochoidal contour of the rotor is 2 and this produces a rotor 22 having an elliptical contour 23 which planetarily rotates within a casing 24 having a closed curve with a simple nodal point 26. On one side of the point 26 is a suction port 27 connected to the space to be evacuated and on the other side thereof a discharge port 28 fitted with a discharge valve 30 and a chamber 31 containing oil. The number of teeth of the ring gear 21 is twice the number of the fixed gear 20. In another embodiment, in which the ratio K is 3 and the ratio of the number of teeth of the ring gear to the fixed gear 3:2, the rotor is of substantially triangular contour and the closed curve of the casing includes two oppositely disposed nodal points. Each nodal point is associated with a suction port and a discharge port. The pump may operate as a two-stage pump or the two suction ports may be connected to a common space and the two discharge ports to a common discharge. Other contours of rotor may be produced but the ratio K must always be a whole number and the ratio of numbers of teeth of the two gears must always be two successive whole numbers, e.g. 4:3, 5:4.
Patent GB-1028492-A (GB)
Title: Improvements in or relating to electromechanical filters
IPC: H03H9/58
Filed: 1963-02-08
Abstract: 1,028,492. Electromechanical filters. SIEMENS & HALSKE A.G. Feb. 8, 1963 [Feb. 9, 1962], No. 5146/63. Heading H3U. In order to improve mechanical strength, the coupler between two mechanical oscillators has an enlarged central portion. The filter shown consists of a single plate of quartz divided by slits 4 into two similar oscillators 1, 2 and a coupler 3. Enlargement of the central region of the coupler enables its length l to be increased whereby the degree of coupling is reduced without loss of mechanical strength. The resonant frequency of the coupler is preferably made higher than that of the oscillators 1, 2. The oscillators are provided with electrodes on their major faces and operate in a transverse extensional mode. The invention may also be applied to filters operating in longitudinal extensional and flexural modes.
Patent GB-447306-A (GB)
Title: An improved construction and arrangement of wind indicator for aerodromes
IPC: B64F1/18
Filed: 1935-02-18
Abstract: 447,306. Wind vanes. MARTIN, J., c/o Martin's Aircraft Works, Higher Denham, near Uxbridge, Middlesex. Feb. 18, 1935, No. 5171. [Class 97 (iii)] In a wind-direction indicator of the type in which a T-, arrow-, or other suitably shaped body is rotatable about a vertical axis, the body is composed of a plurality of tubular sections secured end to end. As shown in Fig. 1 a T-shaped indicator pivoted on a stand 15 is composed of tubular sections 1 joined together by bolts passing through flanges 5 at the ends of each section, the ends of the T being closed by caps 8. Fig. 4 shows an arrow indicator similarly constructed and carrying vanes 13 and 14. The indicator may be illuminated by lamps 22, the pivot 26 carrying slip-rings to allow current to pass to the lamps. In addition, the pivot may be provided with an adjustable friction shoe to prevent too free rotation of the indicator, and may be constructed to allow the arrow to come to rest in a standard position when there is no wind as described in Specification 368,487.
Patent GB-1276032-A (GB)
Title: Improvements in the fixing of needle supports
IPC: A63F5/04
Filed: 1970-02-04
Abstract: 1276032 Fastenings STAEDTLER & UHL 4 Feb 1970 [8 Feb 1969 17 Jan 1970] 5300/70 Heading E2B [Also in Division D1] Needle supports c are releasably fastened to a cylindrical segment having axial grooves or recesses b in its external surface. The needle supports c are held in the grooves or recesses by a clamping strip f and the groove and/or the clamping strip is wedge-shaped in a plane perpendicular to the axis of the segment. Pairs of needle supports may be clamped in a single groove having a step on one of its side faces (Fig. 7, not shown). The clamping strip may be rigid and screwed to the segment (Fig. 2, not shown) or it may be resilient, e.g. it can have springy flanges, inserts or coverings. The cylindrical segment is mounted in a textile machine.
Patent GB-492595-A (GB)
Title: Improvements in or relating to the manufacture of soap-forming carboxylic acids
IPC: C07C51/295
Filed: 1937-02-22
Abstract: Soap-forming carboxylic acids or their salts are made by fusing with alkali metal or alkaline earth metal bases the mixtures of glycols or products containing oxide groups obtained by oxidation of technical mixtures of aliphatic, aliphatic-alicyclic or aliphatic-aromatic hydrocarbons containing, besides one or more unsaturated linkages in an aliphatic chain, at least one saturated aliphatic chain of at least 6 carbon atoms.  Suitable hydrocarbon mixtures are unsaturated tar oils boiling at 200-350 DEG  C. obtained by distillation of lignite, cracking gas oil fractions boiling at 200-325 DEG  C. and containing 70-75 per cent of olefines having 12-18 C atoms, and olefinic products of the hydrogenation of carbon monoxide.  The oxidation at the unsaturated linkage may be effected with permanganates, persulphates, hypochlorites, hydrogen peroxide, chlorine, oxygen or air, preferably in the presence of solvents or diluents such as acetic acid or anhydride, dioxane, acetone, mineral oils, or saturated hydrocarbons present in the initial mixtures.  The hydrocarbons may first be converted into aqueous emulsions with soaps, fatty alcohol sulphonates and the like.  The oxidation products are melted with the bases, either in anhydrous form or with addition of small amounts of water, at above 200, e.g. 250-300 DEG C.  In examples: (1) a benzine obtained by hydrogenation of carbon monoxide, containing about 50 per cent higher olefines is emulsified with soap, and oxidized with hydrogen peroxide at 90 DEG  C.  The dried product is melted with caustic alkali at 250-280 DEG  C. and the melt decomposed with mineral acid; (2) a gas oil fraction is similarly oxidized while dissolved in acetic acid and the product fused with alkali; (3) the olefines obtained by dehydration of a mixture of cetyl and stearyl alcohols are oxidized to the glycols which are converted to acids; (4) cracking benzine is similarly oxidized to glycol and autoclaved with caustic soda and water.  The soap formed gives caproic acid on acidification.