baber/WOPTO huggingface dataset:
Patent GB-406168-A (GB)
Title: Improvements in or relating to the manufacture of azo dyes
IPC: C09B29/30
Filed: 1933-05-27
Abstract: Yellow to orange dyes for silk and vegetable fibres are prepared by coupling a diazotized aminobenzamide in an alkaline medium with a 2 - benzoylaminobenzoylamino - 5 - naphthol - 7-sulphonic acid.  The aminobenzamide may be substituted on the nitrogen atom of the amide group with one or two alkyl or aryl radicles, and the benzene nuclei in the diazo compound or the coupling component may also be substituted, otherwise than by a free sulpho, carboxyl, hydroxyl or amino group.  In the examples, the diazo compound from (1) p-aminobenzamide, or (2) m-aminobenzamide, or (3) p-aminobenzmethylamide, or (4) p-aminobenzdimethylamide, or (5) p-aminobenzanilide, is coupled with benzoyl-p-aminobenzoyl-2-amino-5-naphthol-7-sulphonic acid; (6) the diazo compound from p-aminobenzamide is coupled with o-chlorobenzoyl-p-aminobenzoyl-2-amino-5-naphthol-7-sulphonic acid or (7) with p-toluyl-p-aminobenzoyl-2-amino-5-naphthol-7-sulphonic acid or (8) with benzoyl-m-aminobenzoyl - 2 - amino - 5 - naphthol - 7 - sulphonic acid; coupling is effected in a medium made alkaline with sodium bicarbonate.  Other diazo compounds specified as suitable are those from aminobenzmono- or -di-ethylamides, the corresponding butyl derivatives, and aminobenztoluidides; other specified coupling components are anisoyl-and nitrobenzoyl-p-aminobenzoyl-2-amino-5-naphthol-7-sulphonic acid. The coupling components specified may be prepared by condensing 2-amino-5-naphthol-7-sulphonic acid with m- or p-nitrobenzoyl chloride, reducing the nitro group with hydrosulphite, and aroylating the product.  The aminobenzamides specified may be prepared by condensing m- or p-nitrobenzoyl chloride with the appropriate base, and reducing the products with hydrosulphite.
Patent GB-687955-A (GB)
Title: Improvements in fluid-tight mountings for flexible containers
Inventor: CONEA MIRCEA MICHAEL
IPC: B64D37/06
Filed: 1950-06-20
Abstract: 687,955. Joint-making packing. FIREPROOF TANKS, Ltd. June 6, 1951 [June 20, 1950], No. 15405/50. Class 122(iii) [Also in Group XXIX] In a mounting for an opening 13 in a flexible fuel tank 11 a gasket 12 of flexible material is fitted around the opening and disposed between a backing plate 16 inside the tank and a cover plate 18 outside it, the gasket and cover plate being respectively formed with complementary projections 14 and recesses 19 concentrically bored for fastening bolts 22 which when tightened, compress the gasket between the backing plate and the cover plate to form a fluid seal with the latter. The recesses 19 are shallower than the projections 14 so that the latter are compressed laterally in the recesses and around the bolts 22. In a modification for an inspection cover over a slit-type opening in the tank, the gasket is formed by adjacent portions disposed on each side of the slit and united at each end thereof, each portion having projections engaging recesses in a cover plate extending over both portions, the gasket being compressed as before between the cover plate and a backing plate inside the tank by bolts passing through the projections and complementary recesses. The adjacent edges of the gasket portions are formed with lips that are together received in a groove in the cover plate.
Patent GB-623973-A (GB)
Title: A new or improved method relating to decoration of ceramic articles
IPC: C04B41/89
Filed: 1947-06-12
Abstract: 623,973. Ornamenting ceramic articles. BRADLEY L. H., and BOWKER, A. June 12, 1947, No. 15465. [Class 93]  Colouring material is applied to ceramic articles, e.g. domestic pottery, by coating those portions of the article which it is desired to colour with adhesive and then applying colouring material in the form of a finely-divided powder so that it adheres to the adhesive coated portions of the surface. Decorative patterns of a repetitive type may be obtained by use of a stamp, e.g. of rubber, to make a plurality of impressions of adhesive comprising units of the pattern. The adhesive may be coloured to facilitate positioning of the pattern. Different colours may be used on adjacent or overlapping areas using either process above for one colour and repeating for another. After the complete pattern is formed the article is fixed to fasten the colouring material in the glaze. A suitable adhesive consists of linseed oil, gum mastic, red lead and resin.
Patent GB-159790-A (GB)
Title: An improved variable speed gear
IPC: F16H9/10
Filed: 1920-06-08
Abstract: 159,790. Allan, H. B. June 8, 1920. No Patent granted (Sealing fee not paid). Variable - speed belt gearing is combined with frictional reversing-gearing. The expanding pulleys employed are of the kind in which the belt 27 is supported on parallel bars 26 movable radially by the relative angular displacement of pairs of discs 4, 5 with crossed slots 24, 25 engaged by the ends of the bars. One pulley is mounted to turn with a shaft 1 carried in bearings fixed in a casing 21. The other pulley turns with a shaft 2, which is supported in a frame 29 slidable towards and from the shaft 1. The pulleys carry friction drums 40, 40' which can thus be brought into contact to slow down and finally reverse the driven shaft. The discs &c. are connected by bosses 6, and the discs 5 by bosses 8, and these bosses are internally and externally screw-threaded to engage with axially-movable threaded annuli 11. The pulleys are operated in unison by a lever 15 which thrusts the annuli 11 in opposite directions. The lever 15 is worked through worm gearing 18 from a hand-operated shaft 19, which operates the frame 29 also, through a screw 33, a pinion 35, rack 36, and link 37. The belt 27 has tapered ridges 28 extending longitudinally and engaging tapered recesses in the bars 26.
Patent GB-1471824-A (GB)
Title: Pneumatic-hydraulic blind rivetting tool
IPC: B21J15/22
Filed: 1975-04-16
Abstract: 1471824 Riveting ADOLF DIENER APPARATE UND MASCHINENBAU 16 April 1975 [20 April 1974(2)] 15546/75 Heading B3U In a blind riveting tool comprising a pneumatic cylinder 27 having a piston rod 30 which is movable by compressed air when a valve 17 is opened by a hand lever 13 to cause hydraulic fluid to be forced from an hydraulic cylinder 33 into a cylinder 44 accommodating a piston 64 connected to a mandrel gripping mechanism 4, the pneumatic cylinder 27 is provided with a valve 100 for allowing compressed air to escape to atmosphere after a riveting operation. When compressed air is introduced into the cylinder 27 to initiate a riveting operation, a valve plate 102 of the valve 100 is forced against the bias of a spring 103 on to a valve seat 105 causing the valve 100 to close. When the valve 17 is closed at the end of a riveting operation by releasing the hand lever 13, the piston 64 connected to the mandrel gripping mechanism 4 is moved back by a spring 71, causing the hydraulic fluid to push back the piston rod 30 of the pneumatic cylinder 27, and the valve 100 is opened by the spring 103 allowing the compressed air to rapidly escape to atmosphere.
Patent GB-1040883-A (GB)
Title: Improvements in or relating to the manufacture of lacquers for polyurethane surface coatings
Inventor: CHAPMAN JOHN FREDERICK
IPC: C08G18/50
Filed: 1962-04-24
Abstract: A lacquer suitable for the preparation of polyurethane surface coatings comprises an organic polyisocyanate, an inert organic solvent and a polyether which contains two or more -OH groups and two tertiary amino groups of which the nitrogen atoms are each directly attached to an otherwise unsubstituted benzene ring in meta position to each other.  Water in amount 0.5 to 10% of the weight of the polyether may also be incorporated.  In the example, m-phenylene diamine was reacted with 1:2-propylene oxide and the resulting polyether mixed with urea-formaldehyde resin, cyclohexanone and methylisobutylketone, water and an xylene solution of the phosgenation product of crude diaminodiphenylmethane containing about 15% of polyamines prepared by condensing HCHO with aniline in the presence of HCl.  The lacquer so obtained was used as a coating for steel.ALSO:A lacquer suitable for the preparation of polyurethane surface coatings comprises an organic polyisocyanate, a hydroxyl containing polyether containing two tertiary amino groups of which the nitrogen atoms are each directly attached to an otherwise unsubstituted benzene ring in meta position to each other and an inert organic solvent.  In the example a mixture of propoxylated m phenylene diamine, urea-formaldehyde resin, cyclohexanone and methylisobutylketone, water and a xylene solution of polyisocyanate was formed and used to coat steel.
Patent GB-785424-A (GB)
Title: Improvements in or relating to couplings for rail vehicles
IPC: B61G3/16
Filed: 1956-05-18
Abstract: 785,424. Automatic couplings. FISCHER AKT.-GES., G. May 18, 1956 [May 25, 1955], No. 15638/56. Class 103(5) An automatic coupling 1, Fig. 3, has a coupling head 3 and recess 22 for the complementary head 30 of an opposing coupler, locking of the couplers being effected by a sliding bolt 4 provided with a pivoted latch 5 the projections 4b and 5b of which engage the recess 31 in the head 30. A cam 8 operated by hand may be rotated until it is in longitudinal alignment with the bolt 4 to lock it in position whilst during coupling the bolt 4 moves back agaimst its spring 20 thereby rotating the cam 8 anti-clockwise. The projection 5c on the latch 5 enters slots 17a, 17b in the sleeve 17 to prevent movement of the bolt 4. The coupling 1 (Fig. 2), is mounted on telescopic arms 27, 28 connected by the pin 41 to the draw-bar hook 42 thus acting as a central buffer coupling.
Patent GB-1443443-A (GB)
Title: Acoustic imaging
IPC: G01H9/00
Filed: 1973-04-02
Abstract: 1443443 Acoustic holography BRITISH AIRCRAFT CORP Ltd 17 June 1974 [2 April 1973] 15727/73 Heading G2J [Also in Division H4] Vibration sensors in an array are selectively energized by acoustic waves to form a vibratory pattern characteristic of the structure of an object being imaged, and the pattern is illuminated with coherent light in a holographic or interferometric imaging system to form a corresponding pattern of "live" or "time-averaged" interference fringers characteristic of the structure of the object. The Fig. 1 embodiment provides imaging of an object 1 ensonified by source 3 in a water-filled tank 2. Acoustic energy modified by the object is directed by reflector 4 on to sensor array 5. The array comprises a metal or ceramic plate diced on both sides Figs. 2 and 3 or one side Fig. 4 to form acoustically-isolated half-wave resonators 7 or quarter-wave resonators 9. The isolation may be enhanced by use of a fluorocarbon liquid 20. The vibrational pattern set up on the array is made visible as "live fringes" by directing light from laser 11 directly (at 13), and via reflection from the array's lower surface, on to a previously-recorded hologram 12 of the array when stationary. The fringes are viewed through the hologram. The vibrational pattern is made visible in a second embodiment Fig. 7, (not shown) as "time-averaged fringes" by directing the light on to the array's upper surface to record a hologram, then reconstructing the holographic image. The invention is applicable also to a forward-looking or downwardlooking sensor Figs. 5 or 6 (not shown), in which (a) a transmitter within an acoustic baffle provides a downward sonar beam, (b) reflected sonar signals are directed to a double-sided sensor array via a concave reflector and (c) the array is isolated from the water during the sonar transmission period and range-gating is used to reduce spurious signals.
Patent GB-259919-A (GB)
Title: Self-registering and ticket distributing, personal weighing scale
IPC: G01G23/18
Filed: 1926-06-22
Abstract: 259,919. Nobs, J., (Assignee of Renggli, J.). Oct. 13, 1925, [Convention date]. Printed records, apparatus for giving.-A cocking device for the printing hammer of a personal weighing-scale comprises a spring drum 29, Fig. 2, mounted upon a rotatable spindle 28. The drum is disposed beneath the printing hammer 42 which is normally retained in cocked position, against the action of a spring 45, as shown, by means of a rod 47, terminating in a catch-member. The spindle 28 is adapted to be rotated, and the spring 33 thereby placed in a state of tension, by the engagement with a ratchet-wheel 31 rigidly mounted on the spindle, of a pawl 32 which moves upwardly upon the application of a load to the platform. Backward rotation of the ratchet wheel is prevented by a stop pawl 34. A flange 30 on the drum 29 is provided with peripheral teeth disposed oppositely to those on the ratchetwheel. The shaped end of a spring-controlled, bell-crank lever 36 is adapted to engage both the flange and the ratchet-wheel. The ratchet-wheel towards the end of its rotation, moves the lever 36 out of engagement with the flange, thereby allowing the drum to rotate through a small angle, in which position it is held by a pawl 51 freely pivoted on the spindle 41 of the printing hammer. Upon the release of the rod 47, the hammer falls, and towards the end of its movement engages a projection 52 on the pawl 51 thereby releasing the drum, which rotates until stopped by the lever 36. During the rotation of the drum, one of a series of rollers 40 engages a projection 43 on the hammer, which is thereby re-cocked. Over-winding of the spring 33 is avoided by the provision of a bell-crank lever 38 which is connected to the lever 36 and is adapted to prevent the pawl 32 from engaging the ratchet wheel until after a rotation of the drum. A toothed sector 48 moves with the printing hammer, and operates the mechanism for moving the tickets into printing position. The Specification as open to inspection under Sect. 91 (3) (a) comprises also :- Compound-lever apparatus. - The platform 2, Fig. 5 (Cancelled), is supported upon the usual platform levers 12, 16 connected to a pendulous lever through a draw-rod 13. The levers 12, 16 are supported by inter-connected bell-crank levers 8 9, one of which is provided with an extension 14 connected by a rod 15 to the cocking-device of the stamping hammer. Upon the application of a load to the platform, the levers 8, 9 rotate into engagement with stops 23, 25, the rod 15 is given an upward movement, and the platform levers descend bodily into weighing position. This subject-matter does not appear in the Specification as accepted.
Patent GB-520525-A (GB)
Title: A process for improving of tars or asphalts
IPC: C10C3/02
Filed: 1938-05-26
Abstract: 520,525. Asphalts. LICHTENSTERN, R. May 26, 1938, No. 15733. [Class 91] [Also in Group V] In the method of improving bituminous materials, such as tars, natural or artificial asphalts or mixtures, by heating them with small proportions of metal chlorides which function as polymerization catalysts, the metal chlorides are introduced into the bituminous material in the form of a preparation obtained by heating a concentrated solution of the metal chloride with a small quantity of the same or a different bituminous material. Metal chlorides specified are those of zinc, aluminium and iron. The preparation containing the metal chloride may be added to raw bituminous materials such as raw tars and mineral oi.ls prior to the distillation whereby distillation and polymerization are carried out simultaneously.
Patent GB-1009681-A (GB)
Title: Multistable circuits
IPC: H03K19/082
Filed: 1964-04-16
Abstract: 1,009,681. Shift registers; electronic counters. INTERNATIONAL BUSINESS MACHINES CORPORATION. April 16, 1964 [May 3, 1963], No. 15740/64. Headings G4A and G4C. [Also in Division H3] A multi-stable circuit comprises at least four inverter threshold devices each of which has a plurality of input terminals equal in number to one less than the number of threshold devices and produces an output signal in response to signals applied to at least a predetermined number of said input terminals, said predetermined number being at least two and less than the total number of input terminals, the output from each threshold device being fed to one input terminal of each of the other threshold devices whereby the number of stable states of the circuit is greater than the number of threshold devices. Fig. 4 shows a shift register comprising five inverting threshold devices each consisting of resistors such as 116 ... 120 and a transistor such as 111. The collector of each transistor is fed to one of the input resistors of each other stage, the values of the resistors being such that at any time, two of the transistors are always off and three are on so that the circuit uses a two-out-of-five code and has ten stable states. Advance pulses at 144 are steered to the appropriate transistors by AND gate comprising diodes 140, 141, controlled by OR circuits comprising diodes 131 ... 134. The output of each AND circuit is fed via capacitor such as 146 to the base of the next transistor. Fig. 5 (not shown) relates to a sixstable circuit comprising four transistor inverting threshold circuits of the form shown in Fig. 4.
Patent GB-355335-A (GB)
Title: Improvements relating to hoods for road vehicles
IPC: B60J7/04
Filed: 1930-05-22
Abstract: 355,335. Road vehicle opening tops. STRUBEN, A. M. A., Redstone Wood, Redhill, Surrev. May 22, 1930, Nos. 15771 and 33273. [Class 108 (i).] In road vehicles of the saloon type in which the top cover and a portion of the back cover is adapted to be wholly or partially removed the movable cover comprises a number of rigid panels hinged together alternately at top and bottom and the rear panel being hinged to the vehicle body so that the panels will fold upon one another and the hinges and joints being constructed to prevent the access of rain water to the interior of the vehicle. The panels 4 which may be frames covered by fabric, metal, &c. are hinged alternately at top and bottom 5, 5<1> and are provided with members 7, 8 adapted to conduct rain water to the side guides 10. The side edges 15 of the panels are guided by guides 16, 17, the latter guides 17 being engaged by rollers 18 on the rear panel. The panels are, when desired, locked by bars 11 against the guides 16, the bars 11 having inclined surfaces co-operating with wedges or cams in the guides so that longitudinal movement of the bars causes them to rise and fall. These bars are operated by a lever 31 through lost-motion devices 35 and cables 36, while the panels are moved in either direction by means of a drum 20 operating cables 19, 19a arranged as shown in Fig. 8. One or more of the panels may be provided with ventilators or windows.
Patent GB-913437-A (GB)
Title: Ketones
Inventor: BANKS GEOFFREY LEE
IPC: C07C49/84
Filed: 1960-05-04
Abstract: Compositions comprising mineral oils and/or fatty materials are protected against the action of sunlight by incorporating therein a compound of the formula <FORM:0913437/III/1> wherein R1 and R2 are alkyl groups containing 1 to 4 and 17 to 20 carbon atoms respectively (see Group IV(b)).  A composition comprising white oil and 2-hydroxy-4-methoxystearophenone is described.ALSO:The invention comprises compounds of the general formula <FORM:0913437/IV (b)/1> wherein R1 and R2 are alkyl groups containing 1 to 4 and 17 to 20 carbon atoms respectively and processes for the preparation thereof which comprises (a) heating resorcinol with an acid of the general formula HCOOR2, wherein R2 is an alkyl group containing 17 to 20 carbon atoms in the presence of a condensing agent and then reacting the product with an alkylating agent to alkylate the hydroxyl group in the position para to the carbonyl group with an alkyl group containing 1 to 4 carbon atoms or (b) heating a compound of the general formula <FORM:0913437/IV (b)/2> wherein R1 is an alkyl group containing 1 to 4 carbon atoms and R3 is an alkyl group containing 1 to 4 carbon atoms, with an acid halide of the general formula R2COX, wherein R2 is an alkyl group containing 17 to 20 carbon atoms and X is a halogen atom in the presence of a Friedel-Crafts catalyst and subjecting the product to acid hydrolysis.  The alkylating specified is dimethyl sulphate, the acid halide stearoyl chloride, the condensation catalyst zinc chloride and the Friedel-Crafts catalyst aluminium chloride.  The examples relate to the preparation of 2-hydroxy-4-methoxystearophenone.
Patent GB-431291-A (GB)
Title: Improvements in and relating to submarine diving
IPC: B63C11/02
Filed: 1934-05-28
Abstract: 431,291. Valves. MOOS, G. L., 1, Auld Avenue, Eastwood, near Sydney, Australia. May 28, 1934, No. 15850. Convention date, June 13, 1933. [Class 135] [See also Group XXI] In a submarine diving- apparatus, the valve seat is maintained parallel to the surface of the water, or the valve is protected by a perforated cover which is kept in that position. The Figure shows a valve adapted to be attached to a diver's helmet. It has a swivelling joint 8 connecting it to the part 12, a counterweight 17, a spring-loaded poppet 13, and a cover 15 with outlets 16, which are kept horizontal. In a modification, the poppet 13 is in a vertical plane, and is enclosed in a counter weighted outer body with a perforated top which is kept parallel to the surface of the water..
Patent GB-667950-A (GB)
Title: Means for limiting vision of aircraft pilots
IPC: G09B9/16
Filed: 1950-06-26
Abstract: 667,950. Optical periscopes. FRANCIS, G. C., and PATTERSON, N. T. June 26, 1950, No. 15852/50. Class 97 (i).. A portable instrument limiting the field of view of an aircraft pilot to the instrument panel comprises a casing having opaque walls and an open end, means for securing the open end of the casing to the pilot's face to enclose the eyes and two mirrors at the other end of the casing, one depending from the casing and reflecting light from the instrument panel through an aperture in the casing to the other mirror which directs it to the eyes of the pilot. As shown, the casing 10 may be rectangular in section, having at one end a pad 11 for engaging the face and at the other a mirror 13 pivoted at 14 and adjustable by a screw 18 and receiving light from the second mirror 15 through an aperture 17 in the casing. A harness 31 attached to the pilot's body may be provided to prevent raising of the instrument above the horizontal. The, mirror 15 may be angularly adjustable and may be convex to increase the field of view.
Patent GB-913496-A (GB)
Title: Improvements in or relating to manure distributors
IPC: A01C5/06
Filed: 1960-05-05
Abstract: 913,496. Agricultural implements. MASCHINENFABRIK CRAMER INH. CRAMER & SOHNE. May 5, 1960 [March 15, 1960], No. 15916/60. Class 6(1). A manure distributer especially for a potato-planting machine which places two rows of manure in the vicinity of each row of potatoes comprises manure ducts 10 mounted adjacent to the inside faces of discs 8 which are arranged at an acute angle to each other, the manure falling into the furrows made by the discs. A potato-furrow blade 3 is adjustlaby mounted on a holder 2 which carries the ducts 10 and discs 8.
Patent GB-1028832-A (GB)
Title: Improved road markers
Inventor: WEBB RONALD RICHARD
IPC: E01F9/06
Filed: 1964-04-17
Abstract: 1,028,832. Road marking studs. HOWARD CLAYTON-WRIGHT Ltd. March 25, 1965 [April 17, 1964], No. 15951/64. Heading E1G. A plastics road marking stud has a plurality of domed or painted projections on its upper surface and intersecting ribs on its under surface. The projections are located over the intersections of the ribs and a central hole is provided for a receiving nail. The stud may be square, circular or triangular and may have an abrasive embedded in the surface to promote wheel grip.