baber/WOPTO huggingface dataset:
Patent GB-249530-A (GB)
Title: Improved method for obtaining photographic prints in colours
IPC: G03C5/48
Filed: 1926-03-17
Abstract: 249,530. Schweitzer, G. P. J. March 18, 1925, [Convention date]. Colour photography; toning.-A method of producing colour prints in one or more colours consists in dyeing a photographic plate with a dischargeable colouring-matter, and in attacking the silver of a print produced on the plate, or the unexposed silver salts, with solutions capable of freeing a reagent which destroys the dye locally, by oxidation. For example, a photographic print in metallic silver is produced, and the silver is converted into silver bromate. The plate is uniformly coloured either before or after development with a dischargeable colouring-matter, and is then treated with an acidified solution of potassium bromide, with the result that the colouring matter is discharged at the parts containing silver bromate, and in proportion to the content of bromate. This process produces a negative dye-image from a positive silver print. If a positive dye-image is required, the silver print is not fixed after development, and after uniformly colouring the print, the unexposed silver bromide is treated with an acid solution of an alkaline bromate, which discharges the colour at the unexposed parts. Any of the colouring- matters employed in discharge-printing dyeing processes may be used, but the method is not limited to the use of these. Multicolour prints may be produced by superimposing colour-record monochrome prints coloured in the manner above described. Specification 133,034 is referred to. The Specification as open to inspection under Sect. 91 (3) (a) describes also numerous other examples of chemical reactions which may be employed for discharging the dye of the print, and refers also to the production of multicolour prints by employing for the print an emulsion layer containing, or associated with. a mosaic multicolour screen, and subsequently treating the print as described to produce local discharge of the colouring-matters. This subject-matter does not appear in the Specification as accepted.
Patent GB-601605-A (GB)
Title: Improvements in or relating to means for winding sails for ships and boats
IPC: B63H9/10
Filed: 1945-03-23
Abstract: 601,605. Sails. BUGATTI, E. March 23, 1945, No. 7436. Convention date, Nov. 5, 1943. [Class 115] A sail is rolled on the tube 3, and the sheet 13 is kept taut by the drum 25, of greater diameter than the roller tube. To wind up the sail the tube 3 is rotated by the motor 17 through gearing, pawls 39, 41 allowing the drum 28 to rotate between friction plates 31, 32. In unwinding the sail the pawl 41 drives the drum 25 but the friction plates allow slipping between the drum and the casing 28 to keep the sheet taut.
Patent GB-1535567-A (GB)
Title: Two equivalent photographic magenta dye forming couplers
IPC: G03C7/38
Filed: 1976-02-25
Abstract: 1535567 Photographic two-equivalent magenta couplers KONISHIROKU PHOTO INDUSTRY CO Ltd 25 Feb 1976 [25 Feb 1975] 07457/76 Heading G2C [Also in Division C2] A photographic silver halide material or colour developer solution contain a 2-equivalent magenta coupler having attached to at least one coupling position a group of the Formula:- where R 1  and R 2  are H, alkyl, alkoxy carbonyl, aryloxycarbonyl, alkylamino, arylamino, acylamino, alkylaminocarbonyl, or arylaminocarbonyl; n is 0, 1, 2, or 3, and the alkoxy moiety in the above Formula is directly attached to the coupling position. The specified couplers are all pyrazolone or pyrazolo [2, 3-a]benzimidazole derivatives and may be dimeric (see coupler 31). The carbonyl group shown in the above Formula may be a ketone, ester or amide derivative. These couplers have fast coupling speed, give no fogging or stain, are easily dispersed in the material, and produce dyes having excellent resistance to light and heat.
Patent GB-1013443-A (GB)
Title: Process for dyeing or printing materials of fibrous structure containing cellulose
IPC: C09B62/00
Filed: 1962-02-26
Abstract: Water-soluble dyes containing at least once a group of the formula <FORM:1013443/C4-C5/1> or <FORM:1013443/C4-C5/2> wherein R1 and R2 are H or alkyl and R is alkyl, are employed to dye cellulose fibrous materials and fixed in the presence of an alkaline-reacting agent. The dyestuffs may also contain -COOH or -SO3H groups and may be of the azine, dioxazine, nitro, stilbene, triphenylmethane, xanthene, pyrenequinone, naphthoquinone or especially anthraquinone, phthalocyanine, azo or metalliferous azo dyestuff series.  The dyes may be prepared by reacting carbyl sulphate or carbyl sulphate homologues with a dyestuff or dyestuff precursor containing a primary or secondary amino group.  Alternatively N-ethionylamino- or N-alkyl - N - ethionylamino - arylamines of the formula:- <FORM:1013443/C4-C5/3> where A is an aryl radical and R1 is an alkyl group may be prepared by reacting nitroarylamines with carbyl sulphate and subsequent catalytic reduction of the -NO2 to -NH2 and the so-formed amine diazotized and coupled in the usual way.ALSO:Fibrous materials containing cellulose are dyed and printed by applying a water-soluble dyestuff containing at least once the group <FORM:1013443/D1-D2/1> where R1 and R2 are hydrogen atoms or alkyl radicals and R is an alkyl radical and fixing the dyestuff in the presence of an alkaline-reacting agent.  The dyestuffs may also contain -COOH or -SO3H groups imparting solubility in water and may be of the azine, dioxazine, nitro, stilbene, triphenylmethane, xanthene, pyrenequinone, napthoquinnone or especially anthraquinone, phthalocyanine, azo or metalliferous azo dyestuff series The fibrous material of cellulose may be cotton, linen, hemp or regenerated cellulose.  The dyes may be applied from a long liquor, by padding or by printing with a paste thickened with methyl cellulose, starch ether, alginate or emulsion thickening. The alkaline agent which may be alkali metal hydroxides, alkaline earth metal hydroxides, alkali metal carbonates, bicarbonate, phosphates and borates, alkali metal salts of trichloracetic acid or mixtures of any of the above, may be applied to the material before, after or together with the dyestuff. The dyebaths and after-treating baths may contain an inorganic salt such as alkali metal chlorides or sulphates and the printing pastes may contain the usual auxiliaries urea and dispersing agents. Fixation may be effected at room temperature but is preferably accomplished after intermediate drying by a heat treatment such as steaming, heating in air or in an organic solvent.  Alternatively by a combination of temperature and pH-value the fixing can be carried out during the dyeing process.  Examples are given.
Patent GB-777118-A (GB)
Title: Improvements in and relating to flexible hose couplings
Inventor: MELSOM WILLIAM ARTHUR
IPC: F16L33/01
Filed: 1954-03-15
Abstract: 777,118. Hose couplings. BOWDEN (ENGINEERS), Ltd. June 22, 1954 [March 15, 1954; June 9, 1954], Nos. 7523/54 and 16990/54. Class 99(1) A hose coupling for a flexible hose having a layer of reinforcing material 4, Figs. 1 and 2, comprises an insert 6 inserted into the hose, a ring member 9 abutting or secured to the member 6 and fitting inside the reinforcing matrial 4 so that the said material passes over a ridge 8 on the ring, and an external sleeve 17 contraction of which grips the reinforcing material against the ridge 8 and holds it against the face of the ridge nearest the outer end of the coupling. For a hose having a layer 4 of reinforcing material between two layers of resilient material, the reinforcement is first bared, the insert 6 placed in position, and the ring 9 inserted under the material 4. The sleeve 17, previously placed on the hose, is then slid back to the end of the hose and contracted. a swaging band 18 thereon being forced inwards to grip the end of the material 4 behind the ridge 8. A separate ring 20, e.g. of aluminium, may be provided to support the hose beyond the end of the ring 9; alternatively the sleeve 17 may be provided with a second swaging band which, on contraction, serves the same purpose as the ring 20. The reinforcing material, which may be metallic, with or without a fabric covering, or non-metallic may be embedded in the hose material or may be formed separately from the inner layer of resilient material and bonded to the outer layer as described in Specification 773.983. In a modification applied to a hose having a resilient layer e.g. of polytetrafluorethylene surrounded only by a reinforcing layer, the external sleeve 17b, Fig 4, is thin-walled and is deformed on contraction to follow the shape of the ridge 8a. The sleeve may be thickened on each side of the ridge 8a. Specification 680,205 also is referred to.
Patent GB-746423-A (GB)
Title: Improvements in and relating to n:n-dinitroso-n:n-dialkyl diamides of benzene dicarboxylic acids
Inventor: BRADLEY HARRIS WALTON
Filed: 1954-03-16
Abstract: N : N1 - dinitroso - N : N1 - dialkyl diamides of benzene dicarboxylic acids (see Group IV (b)) are employed as blowing agents in forming cellular objects of synthetic resin, e.g. in polyvinyl chloride-plasticizer mixtures.ALSO:The invention comprises N:N1-dinitroso-N:N1-dialkyl diamides of benzene dicarboxylic acids. The compounds are produced by a process which comprises reacting together an N:N1 dialkyl diamide of a benzene dicarboxylic acid, nitric acid and an inorganic nitrite at a temperature between -20 DEG and 45 DEG C., the ratio by weight of nitric acid to N:N1-dialkyl diamide being at least 5.7 to 1.  The compounds may be used as blowing agents in forming cellular objects (see Groups IV (a) and V). In examples: N:N1-Dinitroso-N:N1-dimethyl terephthalamide is obtained by reacting N:N1-dimethyl terephthalamide with nitric acid and aqueous sodium nitrite (I); or solid sodium nitrate (IV); N:N1-dinitroso-N:N1-diethyl terephthalamide and N:N1-dinitroso-N:N1-dimethyl isophthalamide are prepared from the corresponding N:N1-dialkyl amides by processes similar to (I), (II) and (III).ALSO:N : N1-dinitroso-N : N1-dialkyl diamides of benzene dicarboxylic acids (see Group IV(b)) are employed as blowing agents in forming cellular objects of rubber.
Patent GB-402297-A (GB)
Title: Improvements in or relating to endless track vehicles
IPC: B62D55/10
Filed: 1933-03-13
Abstract: 402,297. Endless - track vehicles. SEPEWE EKSPORT PRZEMYSLU OBRONNEGO, SPOLKA Z OGRANICZONA ODPOWIEDZIALNOSCIA, 65, Wilcza, Warsaw. March 13, 1933, No. 7629. Convention date, Feb. 18. [Classes 79 (i), 79 (ii), and 79 (v).] In an endless-track vehicle the track rollers 11 support the vehicle body through the medium of springs 2, 10 interconnected by thrust members 6 sliding in guides 5 secured to the body. In the construction shown applied to a ' tank ' the springs comprise main longitudinal springs 2 and auxiliary springs 10 connecting the axles of the rollers 11. Transverse main springs may be employed instead of longitudinal. The ends of the springs 2 slide in pins 7 rotatable in the slides 6, and the centres of these springs are fixed by brackets 3 to the bodv 1. The lower end of each slide 6 is pivoted at 8 to a transverse member 9 secured to the centres of a pair of springs 10 arranged one on each side of a pair of rollers 11. The guides 5 are fixed to main frame members 4, and renewable liners 12 are provided between the slides and the guides. The endless tracks 13 are driven by sprockets 14, steering being effected by braking one sprocket or the other. The brakes are applied by independent pedals 15 and are connected by links 20 to arms 19 on a tube 18 rotated by the steering hand-wheel 16, so that when this wheel is rotated one or the other brake is applied to steer the vehicle. The steering hand wheel is adjustable in height being fixed to a shaft 17 slidable in but keyed to the tube 18. The driver's seat 22 is adjustable on columns 23.
Patent GB-341769-A (GB)
Title: Improvements in and relating to knotting devices
IPC: B65H69/04
Filed: 1930-03-10
Abstract: 341,769. Knot-tying devices. COOK & CO., MANCHESTER, Ltd. and TOWLSON, H. J., 18, Exchange Street, Manchester. March 10, 1930, No. 7705. [Class 112.] A hand device of the kind described in Specification 289,648, [Class 112, Sewing &c.], for tying weavers' knots, is constructed so that the strands pass under catches or projections and are knotted by movement of a single trigger. A projecting guide is provided to prevent the thumb from coming into contact with the moving parts. The slots 5, 6 in the delivery side plate receive one strand each after the strands are crossed over the bill. These slots are provided with hooks or catches 7, 8 formed on a plate 9, Fig. 1, mounted on the knotter. On the other side of the knotter is a slot in which the strand lies before it passes to the slot 6, and this slot has a projection or catch 10 in front of it, Fig. 2, under which the strand lies when the device is ready for use. The knot is formed by depression of the single trigger 11. A projection 14 pivoted to the front part of the device prevents the thumb from contacting with any moving parts. The plate 9 may be omitted and the delivery plate suitably shaped to provide the hooks or catches 7, 8.
Patent GB-480631-A (GB)
Title: Improvements in heating systems for gas-generating or other retorts
IPC: C10B5/06
Filed: 1937-03-16
Abstract: 480,631. Retort furnaces. DIDIERWERKE AKT.-GES. March 16, 1937, No. 7725. Convention date, March 17, 1936. [Classes 51 (i) and 51 (ii)] In a gas or other retort furnace heated by superposed horizontal flues through which the heating gases flow in series, combustion products are returned to a flue such as 2a, in which combustion is effected from the next higher flue 2b through a port 8 above a guide plate 4, so arranged that the fresh combustion gases exert an injector action on the gases to be recirculated. The guide plate, which slopes downwards in the direction of flow and extends over the full width of the flue, may be adjustable lengthwise or on inclination. The connecting ports between adjacent flues are controlled by dampers 9, 11.
Patent GB-149896-A (GB)
Title: Improvements in pessaries and instruments for applying dressings to the vagina
IPC: A61F6/12
Filed: 1920-03-16
Abstract: 149,896. Fleck, A. H. March 16, 1920. Pessaries.-An appliance for administering medicaments to the vagina and supporting the womb consists of a pneumatic bag or cushion surrounded by a bag of absorbent material carrying the medicament. It is introduced by being first inserted into a speculum which is subsequently removed. The pneumatic cushion is shown at 3, Fig. 2, inside an absorbent bag 6 which is treated with the medicament desired. These are inserted into a speculum 1. with flared end 2, which is then intrcduced into position. The speculum is now removed, the bag 6 and the pneumatic cushion being held in place during its removal, by a rod 7, shown separately in Fig. 3. This rod is telescopic, the inner rod being locked to the outer sheath in the extreme positions by bayonet joints. The cushion is next inflated by a bulb 13, Fig. 4, fitted with a stem which is introduced into the opening 16 and presses open the non-return valve 5. After the dressing has been applied for the required time, the cushion is deflated by the stem of the bulb opening the valve 5, and the whole device may then be removed.
Patent GB-504150-A (GB)
Title: Damp-proof and sound-proof wall
IPC: E04B1/64
Filed: 1938-03-15
Abstract: 504,150. Walls. HENDERSON, J. March 15, 1938, No. 7956. [Class 20 (iv)] A wall comprises two spaced leaves of brickwork with a lining consisting of a series of bituminous sheets C which are arranged to overlap at their upper and lower edges and are interposed between the two leaves so as to extend throughout the wall, each of the sheets being supported from one-piece wall-ties A which bind the two leaves of the wall together and are threaded through holes provided near the upper edges of the sheets. Each wall-tie A, which may be of galvanized iron or copper, has a collar B soldered thereon, and adapted to lie between the two leaves of the wall. One end of the tie A is substantially closed and the other end is left open to permit the tie to be threaded through the sheeting.
Patent GB-779563-A (GB)
Title: Improvements in supports for flexible conduits connected to smoothing irons
IPC: D06F75/28
Filed: 1955-03-18
Abstract: 779,563. Supporting pipes. BRUCE, M. J. H. March 19, 1956 [March 18, 1955], No. 7979/55. Addition to 660,621 [Group XXXVI], Class 99(2) In a support as described in the parent Specification and comprising a pivoted arm 27 attached at the lower end thereof to an ironing board 10, there is freely suspended from the upper end of the arm, means such as a strap 34 for supporting and gripping one or more flexible conduits for conveying steam or gas to and/ or from a smoothing iron 36. As shown, . a spindle 13, fixed to an angle bracket 11 secured to the side of the board 10, projects through the hollow boss 18 of a fitting 16, the tubular, metal support 27 being clamped in a split sleeve 19 extending radially from the boss. The upper end of the support is bent to form a laterally extending portion 31 which carries a hook 32 adapted to be engaged in any one of a number of holes 33 formed in the strap 34, the latter having at one end thereof a stirrup, buckle or clip 35 through which the other end of the strap is passed to form a loop around the conduits 37, 38. The arm 27 pivots about the spindle 13, and is urged to an upright position by a torsion spring 24 located about the boss 18. The conduits are secured to a plate 39 fixed to the board 10. In a modification, the strap is replaced by a spring clip or a clamp.
Patent GB-512791-A (GB)
Title: Improvements in or relating to gas-filled incandescent electric lamps
IPC: H01K9/00
Filed: 1938-03-15
Abstract: 512,791. Electric incandescent lamps. SOC. ANON. POUR LES APPLICATIONS DE L'ELECTRICITE ET DES GAZ RARES ETABLISSEMENTS CLAUDE-PAZ & SILVA. March 15, 1938, No, 8018. Convention date, Jan. 27. [Class 39 (ii)] The bulb of a gasfilled lamp terminates at its two opposite ends, E', E<2> in pinches T', T<2> respectively, located on the outer surface of the container and supporting filaments F<1>, F<2> connected in series by a conductor X situated outside the bulb or container, which encloses, no part made of glass. The bulb is made of small volume in relation to its power and may be filled with a mixture of 98 per cent. xenon and 2 per cent. nitrogen. To avoid overheating, the bulb and both pinches are preferably made of a glass which is transparent to infra- 'red rays. In the example the lamp bulb is enclosed within an outer bulb Z and is maintained in position by a doubly bent rod Y at its upper end. The outer bulb may be made of frosted, opal, or enamelled or coloured glass, and the space between the bulbs may be filled with a cooling- fluid. When the inner bulb has a filling containing more than 50 per cent. of xenon, its internal volume in cubic' centimetres may be less than that given by the formula V=4 #W where W is the rated wattage of the lamp. To avoid excessive volatilisation of the tungsten filaments however, the volume is preferably greater than #W
Patent GB-269154-A (GB)
Title: Method of producing cellulose and paper from straw, esparto, reed, and similar raw materials
IPC: D21C3/02
Filed: 1927-03-23
Abstract: 269,154. Rinman, E. L. April 7, 1926, [Convention date]. Pulp, preparation of.-In the production of cellulose and paper from the straw of rye, wheat, barley, oats, reeds, Indian corn straw, rice straw, esparto, sugar cane, sunflower stalks, cotton plants, papyrus, and similar raw materials, the material is boiled at a temperature above 100 C. but not exceeding 140 C. with caustic soda lye, with or without the addition of sodium sulphide. At this temperature glutinous substances are not destroyed. After boiling, the mass is cooled to about 30 C.-50 C. and the separation of waste liquor carried out at that temperature, the washing being done at a temperature not above 30 C., preferably in a rotary filter, petroleum or other oil of high boiling point being added to prevent the formation of scum. Pulp parchment paper or greaseproof paper is obtained from the pulp so produced by grinding to 65-80 Schopper- Riegler. Thicker papers may be obtained by heating the pulp to 40 C. before feeding on to the wire cloth of a paper machine. Kraft paper equal to that of the best sulphate pulp is obtained by grinding to 55-60 S.R., and the strength thereof may be increased by adding 10 per cent of ordinary kraft pulp, strong sulphite pulp, or jute, hemp, or cotton fibres. The cellulose obtained may be mixed'with 3 parts of mechanical pulp in the production of newsprint paper, the yellow colour being covered by adding suitable dyes. The pulp may be bleached with ordinary bleaching liquids such as chloride of lime, preferably at a temperature of 25 C., and the product may be used wholly or partly in place of bleached sulphite pulp in the production of fine papers of all grades. In an example, 150-170 kilos. of caustic soda are used for boiling 1000 kilos of chopped rye straw. The bleaching which is effected at a temperature not exceeding 30 C. may take place during the grinding, which is preferably done with beaters having very broad knives.
Patent GB-1368512-A (GB)
Title: Two-part stator for large rotating electrical machine
IPC: H02K1/16
Filed: 1972-02-22
Abstract: 1368512 Stator cores of dynamo-electric machines BBC BROWN BOVERI & CO Ltd 22 Feb 1972 [24 Feb 1971] 8145/72 Heading H2A A two-part stator for large rotary electrical machines comprises, in order to facilitate testing transportation and installation, an inner laminated part 1 which is in one piece and carries the stator winding 2, and an outer laminated part which is axially subdivided into a plurality of annular laminated components 5. The latter may be circumferentially subdivided into segments, and the construction provides that the inner stator may be tested transported and installed as a single unit. In the space 10 between the two parts there may be insulation material and a cooling medium flow, and some of the lamination clamping bolts 7 may be in the form of insulated hollow tubes 7<1> through which flows a coolant liquid, e.g. water. Tension bolts 9 interconnect upper and lower parts of a casing 6 which transmits forces to the foundation either directly or via spring elements 8. In other embodiments mutually adjacent peripheries of the two parts have a polygonal outline (Fig. 3), cooling liquid may flow through the casing (Figs. 4 and 5), and the two parts may be glued to gether by a synthetic resin.