baber/WOPTO huggingface dataset:
Patent GB-818911-A (GB)
Title: Improvements in or relating to diazotype materials
IPC: G03C1/60
Filed: 1954-09-15
Abstract: 818,911. Diazotype materials. OZALID CO. Ltd., MURRAY, H. D., TANENBAUM, A., and ROYER, R. P. Sept. 14, 1955 [Sept. 15, 1954], No. 26784/54. Class 98(2) A light-sensitive diazotype material comprises a support coated with a mixture of a diazonium compound and a finely divided water-insoluble synthetic resin having groups capable of cation exchange. The synthetic resin may be a sulphonated phenotic resin, a polycarboxylic resin, a unifunctional cross-linked polymethacrylic resin containing only carboxyl groups capable of exchange, or a unifunctional crosslinked sulphonated polystyrene. Resins specified are Amberlite and Zeo-Karb (Registered Trade Mark). The material may be a one or two-component material, and the sensitizing solution may contain a thickener or binder, such as dextrin, and the usual inhibitors. Specification 817,001 [Group IV(b)] is referred to.
Patent GB-875456-A (GB)
Title: Improvements relating to the mounting of optical elements
IPC: G02B7/02
Filed: 1959-08-05
Abstract: 875,456. Lens and mirror mountings. OPTISCHE INDUSTRIE DE OUDE DELFT N. V. Aug. 5, 1959 [Aug. 11, 1958], No. 26790/59. Class 97(1) A mount for an optical element comprises a plurality of metal cups fitting into holes drilled into but not perforating the optical element, said cups being cemented in said holes and each of said cups having a wall which is relatively thin as compared with the bottom section and being secured to one end of a resilient supporting member whose other end is secured to a housing containing the optical element, said resilient members compensating for differential contractions and expansions between said optical element and the housing. As shown, a concave mirror 3 is supported in a housing 1 by three cylindrical cups of which only the cup 5 is shown. Each cup has a wall section 13 which is relatively thin compared with the bottom thereof, this wall being cemented into a cylindrical hole drilled in the mirror body, the holes being equally angularly spaced. The bottom of each cup is grooved and soldered in the groove is a blade spring 8, the other end of which is fixed to a mounting plate 11 secured as by screws 15 and 16 to the housing 1. These blade springs are disposed in planes tangential to a circle having its centre on the mirror axis. In an alternative embodiment, the holes are drilled radially in the cylindrical peripheral surface of the optical element, and the blade springs are secured at one end to the bottom sections of the cups so as to extend tangentially to the periphery of the optical element which may be a lens or a mirror. Specification 801,213 is referred to.
Patent GB-1467472-A (GB)
Title: Desalination apparatus
IPC: B01D1/26
Filed: 1974-06-18
Abstract: 1467472 Desalination apparatus NOBUO MARUICHI 18 June 1974 26976/74 Heading B1B Desalination apparatus comprises at least three dish-shaped evaporating/condensing elements (2) coaxially superimposed about a vertical axis, each terminating at their lower innermost ends in upstanding walls (5) which define inverted frusto-conical openings (4) thus forming a contiguous axial passage through the structure, a salt-water feed tube (14), a discharge pipe (7) leading from each element to the next lower element, a concentrate outlet pipe (8), means (12) for heating the lowermost element, and a drain receiver (10) for the removal of desalinated water. The undersides of each element may be provided with a condensation and drop inhibiting layer e.g. metallic mesh.
Patent GB-773808-A (GB)
Title: Improvements in or relating to the roasting of sulphide materials
IPC: C22B1/10
Filed: 1954-09-17
Abstract: In apparatus for roasting pyrites or burning coal &c. in the form of fine or granular particles, pulsations are produced in the air supplied to a bed of the charge material, so that the reaction is facilitated and a <PICT:0773808/III/1> minimum quantity of fines is carried away with the effluent gases. As applied to the roasting of pyrites, particularly flotation concentrates, air is supplied to a substantially rectangular reaction chamber 1, Fig. 1, containing a bed 17 of pyrites through compartments 12-15 under control of valves 4-7 producing the pulsations, and valves 8-11 controlling the quantity of air. Pyrites of a particle size not greater than 20 mm., and preferably below 10 mm. is fed in at 2 and rotated at 3, movement of the charge being induced by the reaction air and/or by tilting the reaction chamber, and an offtake 19 is provided for the gases formed. The frequency of the pulsations is preferably within the range 10-100 per min.  In a typical run using flotation concentrates containing 50 per cent S with an average particle size of 0.15 mm., and a pulsation rate of 30 per min., the SO2 percentage in the exhaust gases was 10 per cent calculated on dry gas.  The air distribution over the compartments 12-15 was about 40 per cent in the first two, about 15 per cent in the third and about 5 per cent in the fourth compartment. The invention may also be applied to a secondary roaster of circular cross-section, Fig. 3 (not shown), disposed below a conventional flash roaster and supplied with pulsations of air through tuyeres extending through the roaster walls.
Patent GB-1055185-A (GB)
Title: Steel sheet and strip
IPC: C22C38/12
Filed: 1963-07-08
Abstract: Steel containing one or more of Sb, Nb, Bi, Pb in a total amount of 0.003 - 0.1% by weight is converted to strip by hot and cold rolling, and is then annealed at 500-750 DEG C. in an atmosphere containing hydrogen and water vapour to reduce its carbon content to less than 0.02% and optionally its nitrogen content to less than 0.002%.  The steel may contain 0.15 - 0.6% of manganese. When low nitrogen content is not of importance, annealing may be carried out in DX gas, i.e. one formed by partial combustion of hydrocarbon gases and containing by volume 10-12% hydrogen, 9-10% carbon monoxide, 5-6% carbon dioxide and the remainder nitrogen.
Patent GB-224909-A (GB)
Title: Improvements in or relating to cranes for lifting railway vehicles
IPC: B66C17/22
Filed: 1924-11-13
Abstract: 224,909. Masehinenfabrik Esslingen, and Rosenthal, J. Nov. 16, 1923, [Convention date]. Overhead travellers; lifting - cradles. - To utilize fully the height of the shop and the width between overhead runways A, the overhead traveller is formed as a rectangular frame without anv obstruction to the passage of a vehicle between the longitudinals, the hoisting winches 3 - - 6 are mounted on the longitudinals 7, 8 of the traveller and the locomotive &c. to be lifted is supported on one or more cradles comprising longitudinal girders 9, 10 and movable transverse girders 11 receiving the load. The winches may be movable along the longitudinals. In the arrangement shown in Figs. 1-3, motors 1, 2 on the end girders of the traveller drive the winches in pairs. In a modification, one motor drives six winches, arranged three on each side of the traveller. In another modification, two lifting-cradles are employed, each raised by four winches driven by one motor.
Patent GB-742967-A (GB)
Title: Improvements in or relating to sawtooth oscillators employing transistors
IPC: H03K4/50
Filed: 1953-10-05
Abstract: 742,967. Saw-tooth transistor circuits. PHILIPS ELECTRICAL INDUSTRIES, Ltd. Oct. 5, 1953 [Oct. 8, 1952], No. 27251/53. Class 40 (6). In a generator of the type in which a capacitor 4 is connected between the collector c and emitter e of a transistor 1, a rectifier 8 is included to increase the back resistance and allow operation at lower frequency. The capacitor 4 is discharged through the rectifier and emitter-collector path and recharged over resistor 13, the rectifier 8 reducing the leak through the emitter when in the cut-off condition.
Patent GB-295524-A (GB)
Title: Means for loosening and distributing cut tobacco
IPC: A24C5/39
Filed: 1927-10-14
Abstract: 295,524. Sch³nemann, H., and Neuerburg'sche Verwaltungsges. Oct. 14, 1927. Cigarette - making machines.-For loosening and distributing cut tobacco. a box 10, Fig. 1, is provided at the bottom with longitudinal bars 11 forming a grid and is reciprocated vertically in order to loosen and spread the tobacco with a minimum of movement longitudinally of the grid. The box 10 is supported in vertical slides 15 and is reciprocated by crank discs 12 and connecting rods 13 engaging studs 14 on rods connected to the box through springs. Within the box are rotating pin rollers 17 to loosen the tobacco, which is fed to the box by a funnel 1 provided with oppositely rotating pin rollers 2 actuated by adjustable pawl and ratchet mechanism from the shaft 33. The loosening of the tobacco may be facilitated by giving one side of the box 10 a greater reciprocating movement than the other side. The tobacco falling through the grid 11 is conveyed by a belt 20, guide plates 25, and a pin roller 24 to the tobacco-rod conveyer belt 22, surplus tobacco being returned by a belt 27 for further conditioning, loosening, &c. The upper run of the belt 20 may be provided with a suction box 21 for removing dust and with means for supplying hot air, steam, or moisture for conditioning the tobacco. In a modification, the pin rollers 17 are replaced by short endless belts provided with pins; pin rollers are provided beneath the grid 11; and the belt 20 conveys the tobacco to a funnel swinging over a hopper subdivided by a number of inclined partitions and having at the outlet a pin roller for discharging the tobacco on the tobacco-rod conveyer belt. In another form, Fig. 8, the belt 20 conveys the tobacco to a funnel 45 swinging over a funnel 43 divided by oscillating partitions 51 leading to guides each formed by a pair of endless belts 53, 55 travelling over walls 55, 56. At the lower end, each guide is provided with a guide plate 66 and a pin roller 65 on which the tobacco is held by a spring comb 67. The tobacco is disengaged from the rollers 65 by oscillating combs 68 actuated by arms 69 on sliding blocks 70, and is screened by grids 75 on to a belt 76 conveying it to the rod-forming belt 78. In a further form, Fig. 10, tobacco from the reciprocating grid 1 is conveyed by the belt 20 to an oscillating sieve 83 having sections 84, 85 of different mesh, so that the shorter and longer fibres are sifted into guides 86, 87 respectively. A cover 88 for the section 84 of smaller mesh is adjustable to regulate the proportion of shorter shreds. The guides are provided with pin rollers 86<1>, 87<1> from which the tobacco is disengaged by an oscillating fork 91, 92 and conveyed by a belt 89 to the rodforming belt 90.
Patent GB-367383-A (GB)
Title: System of reproducing sound in different languages, and apparatus relating thereto
IPC: G03B31/00
Filed: 1930-09-13
Abstract: 367,383. Reproducing sound. STEIN, S. F., Park Hotel, Williamsport, Pennsylvania, U.S.A. Sept. 13, 1930, No. 27414. [Class 40 (ii).] A plurality of sound records are reproduced synchronously in a manner such that any member of the audience may at will hear the sound reproduced by any one of the records to the substantial exclusion of the sound reproduced by the other record or records. The records may be of words in different languages and the sound reproductions may be effected in synchronism with the projection of motion pictures. As shown in Fig. 1, two sound reproducers 12, 13, using different sound records, are run synchronously with a motionpicture projector 11 which projects pictures on to a screen 10. Circuit wires 16 lead from the sound reproducer 12 to ear-phone receivers 18 which are located at each of the chairs 17 in the hall. The sound reproducer 13 is connected through leads 19 to loud-speakers 20 placed behind the screen 10 and branch wires 21 connected with the leads 19 extend to loudspeakers 22 disposed at the side of the hall. Circuit connections 25 and switches 26, 27, 28 allow either sound-reproducer 12 or 13 to deliver sounds both to the loud-speakers and to the ear-phone receivers. Normally the reproducer 12 delivers sounds to the receivers 18 while the reproducer 13 delivers sounds to the loud-speakers. In this way a member of the audience is able at will either to hear the sounds emanating from the loud-speakers or he may use an ear-phone receiver 18 to listen to sound reproduced by the reproducer 12. The ear-phone receivers 18 are arranged at the chairs as shown by Fig. 2. A bracket 30 carries a receiver-holding arm 31 and is hinged to a standard 29 to swing in a vertical plane so that it may be folded to lie at the side of the chair when out of use or raised to a convenient position for use, as shown in dotted lines. Specification 130,326, [Class 40 (ii), Phonographs &c.], is referred to.
Patent GB-246608-A (GB)
Title: Improvements in an emulsifying or mixing apparatus
IPC: B01F5/04
Filed: 1924-11-17
Abstract: 246,608. Best, R. B. Nov. 17, 1924. Mixing fluids in flow.-A mixing or emulsifying apparatus for preparing size in paper making comprises a water tank 10, Fig. 1, from which water is supplied to an ejector 20 by means of a steam-operated temperature and pressure regulator 14, of the kind described in Specification 4949/93, [Class 71, Injectors &c.], and a size tank 6 heated by a steam pipe 7 and discharging to the ejector, the mixing &c. being preferably further secured by a rotary helical mixer 31. The ejector comprises a mixing tube 22. Fig. 2, and water nozzle 26 non-adjustably mounted in the casing 20. The mixer 31 comprises a spiral blade 36, the shaft 35 of which is carried on a spider 34.
Patent GB-1104292-A (GB)
Title: Pharmacologically active basic alcohols
IPC: A61K31/135
Filed: 1963-07-11
Abstract: Compounds of the general formula <FORM:1104292/C2/1> (wherein A and A1 are alkyl groups each having 2 or 3 carbon atoms, R1 is a hydrogen atom, R is a methyl or ethyl group and A, A1 and R have between them from 5 to 7 carbon atoms, or A and A1 are alkyl groups each having 1 to 3 carbon atoms and R and R1 are each a methyl group) and their acid addition salts are prepared by (a) catalytically hydrogenating an acid addition salt of a secondary ketoamine of the formula <FORM:1104292/C2/2> optionally followed by conversion to the free base or another acid addition salt, or (b)-in the case of compounds in which R1 is a hydrogen atom-reacting a primary amine of the formula <FORM:1104292/C2/3> with CH3COR and catalytically hydrogenating the product, optionally followed by conversion to an acid addition salt.  The starting materials for process (a) may be prepared by reacting a haloketone of the formula <FORM:1104292/C2/4> (wherein X is a halogen atom) with RR1CH3CNH2 in the presence of a solvent and converting the product to an acid addition salt.  The preparation of p-dipropoxybenzene, 2,5-dipropoxypropiophenone, 2,5 - dipropoxyisonitrosopropiophenone and racemic erythro - a  - (2,5 - dipropoxyphenyl) - b  - aminopropanol and its hydrochloride is described.  The compounds of the invention have anti-arrhythmic activity, and may be administered in the form of pharmaceutical preparations containing them in association with a carrier.
Patent GB-503917-A (GB)
IPC: G09F9/307
Filed: 1937-10-12
Abstract: 503,917. Electromagnetic switches. SMITH, H. M. Oct. 12, 1937, No. 27767. Convention date, Oct. 12, 1936. [Class 38 (v)] [Also in Group XXXVIII] The armature of the switch carries spring-mounted contacts 173, adapted, when the switch is energized to engage corresponding contacts 169 to complete a number of individual circuits.
Patent GB-620172-A (GB)
Title: Improvements in or relating to photographic shutters
IPC: G03B9/10
Filed: 1946-09-17
Abstract: 620,172. Photographic shutters combined with flash-lamps. KODAK, Ltd. Sept. 17, 1946, No. 27884. Convention date,' Oct. 12, 1945. [Class 98 (i)] A photographic shutter having a built-in switch adapted to close a flash-lamp circuit comprises a shutter blade having one end of a spring attached to it; a pivotally mounted arm carrying one contact of the switch and having one end of a second spring attached to it for holding it clear of the other fixed switch contact; and a trigger mechanism to which the other ends of the springs are so connected that depression of the trigger tensions and releases the springs so that the switch is closed after incomplete movement of the trigger. As shown a shutter blade 3 apertured at 5 and a cover blade 15 are pivotally mounted at 4 and 16 on opposite sides of a supporting plate 1 having an exposure aperture 2 and an arcuate slot 17 through which passes a pin 18 on the shutter blade, and an L-shaped lever 32, stepped at 33, is pivoted beneath and coaxially with the shutter blade. On depressing the trigger 7, which is pin-and-slot connected to the cover blade and carried in lugs 8 of a bracket 9 attached to the plate 1, against the action of a spring 10, the cover blade is rotated clockwise to uncover the aperture 2. This movement tensions the hair-pin springs 19, 34 which are connected between a pin 20 on the cover blade and pins 18, 31 on the shutter blade and the lever 32 respectively. Due to the relative dispositions and strengths of these two springs, the spring 34 commences its driving action before the spring 19 so that the edge 35 of the lever 32 aids the movement of the shutter blade pin 18 until the pin 31 which forms the movable contact engages the fixed contact 30 of the switch S closing the flash-lamp circuit as the edge of the aperture 5 reaches the exposure aperture 2. Thereafter the shutter blade is driven solely by the weaker spring 19 across the exposure aperture, and finally the pin 18 passes beneath a spring blade 13 secured at 12 to the plate 1, preventing rebound of the shutter blade. On releasing the trigger 7, the spring 10, being stronger than either of the springs 19, 34, drives the cover blade anticlockwise to cover the aperture 2, the shutter blade being unable to move under its spring 34 until the pin 20 on the cover blade passes under the tip 23 of the spring blade 13 to release the shutter blade pin 18. Instead of the springs 19, 34 being connected to the pin 20 on the cover blade, they may be connected directly to the trigger as by the pin 14. Also the trigger may be pivotally mounted. Specifications 537,209 and 620,060 are referred to.
Patent GB-480882-A (GB)
Title: Improvements in the manufacture and production of compounds of the 3.4.8.9-dibenzopyrene-5.10-quinone series
IPC: C09B3/50
Filed: 1936-10-14
Abstract: Vat dyes are made by treating hydroxy compounds of b z3.b z4 - phthaloyl - 3.4.8.9 - dibenzopyrene-5.10-quinones with alkylating or aralkylating agents.  The initial materials may be prepared by oxidation by means of nitrosylsulphuric acid in presence of sulphuric acid of b z2.b z21-dibenzanthronequinones such as b z2. b z1-dibenzanthronequinone itself or its alkyl, halogen or hydroxy compounds, or 2.21-dibenzanthronyls, dibenzanthrones, b z2-hydroxy- and b z2.b z21-dihydroxydibenzanthrones and their ethers and esters, the oxidation being promoted by catalysts such as vanadic acid, selenium, mercury, or manganese compounds.  Alkylating or aralkylating agents specified are alkyl or aralkyl halides and alkyl or aralkyl esters of sulphuric acid and of sulphonic acids. In examples:  (1) b z2.b z21 - dibenzanthronequinone is p  heated with nitrosylsulphuric acid and a little ammonium vanadate to give b z3.b z4 - phthaloyl - 6 - hydroxy - 3.4.8.9 - dibenzopyrene - 5.10 - quinone (brown-violet dyeings on cotton, converted by hydrolysis to orange), which is then methylated with dimethyl sulphate or p-toluene sulphonic acid methyl ester or ethylated with diethyl sulphate (orange or orange-red shades); the b z2.b z21-dibenzanthronequinone may be replaced by BETAz2-hydroxy-, b z2.b z21-dihydroxy or b z2.b z21. b z3 - trihydroxy - dibenzanthrone; (2) the bromination product of b z2.b z21-dimethoxydibenzanthrone, prepared according to example 1 of Specification 205,304, [Class 2 (iii)], is treated as in (1) to give a dibrominated b z3.b z4-phthaloyl - 6 - hydroxy - 3.4.8.9 - dibenzopyrene-5.10-quinone, which is then methylated with p - toluene sulphonic methyl ester (orange shades); the starting material may be replaced by the dichloro derivative of b z2.b z21-dibenzanthronequinone obtained according to examples 1 to 3 of German Specification 546,678 or by 6.61-dichlor-b z2.b z21-dimethoxydibenzanthrone obtained according to Specification 205,304; (3) b z3.b z31-dihydroxydibenzanthrone-b z2.b z21-quinone (cf. example 3 of Specification 461,885) is mixed with sulphuric acid, water, and nitrosyl sulphuric acid at about 100 DEG  C. to give b z3.b z4-phthaloyl-6.7-dihydroxy - 3.4.8.9 = dibenzopyrene - 5.10-quinone, which is methylated with p-toluenesulphonic acid methyl ester (yellow shades); the b z3.b z31 - dihydroxydibenzanthrone - b z2. b z21-quinone may be replaced by the dibromo compound obtained according to example 4 of Specification 461,885; (4) b z3.b z4-phthaloyl-6-hydroxy - 3.4.8.9 - dibenzopyrene - 5.10 - quinone is heated with benzotrichloride.
Patent GB-1432947-A (GB)
Title: Light diverting and/or switching device
IPC: G02F1/35
Filed: 1972-06-15
Abstract: 1432947 Photochromism EMI Ltd 1 June 1973 [15 June 1972] 27919/72 Heading C4S [Also in Division G2] A light diverting or switching device comprises a slab 1 of material exhibiting changes in refractive index when irradiated with two beams 11, 13 of coherent light, a source 5 of said beams, means 10, 14 for directing the beams so that they irradiate the whole of the slab and produce changes in the form of a pattern of parallel bars which effect the diverting or switching of light falling on a minor surface 3 of the slab and means 19 sensing light emerging from another minor surface of the slab. The bars comprise interference fringes and divert light from laser 15 through 90 degrees (out of the plane of the paper) to detector 19. Another detector may sense undiffracted light so that the apparatus acts as a light switch. The fringes are erased by light from laser 20. The body may be tilted or the direction of the incident radiation varied for scanning. The material of slab 1 is rhodamine in ethanol or plastics material or anthracene derivatives.
Patent GB-422778-A (GB)
Title: Improvements in or relating to locks for trunks, attache cases, and the like
IPC: E05B65/50
Filed: 1934-09-29
Abstract: 422,778. Hasp fastenings. KONIG, W., 14, Blumenstrasse, Iserlohn, and KRAUSE GES., 0., Iserlohn, Westphalia, Germany. Sept. 29, 1934, No. 27944. [Class 44] A lock for attachÚ cases, trunks, &c., comprising a lock plate and a latch guided on the underside of the lock plate to engage a hasp and connected to a sliding knob on the front of the lock plate, has the latch formed as a flat plate with one or more lateral tongues or bent up portions guided against the edge of a slot formed in the lock plate. A plate b having a latch end c has a bent lug r engaging the edge of a slot w in the lock plate a. A knob f has two tongues h engaging holes in the plate b and guided in lateral extensions of the slot w. A wire spring k below the knob is anchored on a lug o bent up from the plate a and its ends respectively engage a hole in the lug r and a lug p on the plate a. The ends of the lateral extensions of the slot w limit the movement of the latch.