baber/WOPTO huggingface dataset:
Patent GB-483564-A (GB)
Title: Improvements in the production of valuable dyeings on mixed fabrics
IPC: D06P3/82
Filed: 1936-10-19
Abstract: Mordant dyes, dyeing with; regenerated celluloses, dyeing.-Mixed fabrics of animal and cellulosic fibres, such as of wool with cotton or regenerated celluloses, are dyed with substantive azo dyestuffs, capable of being chromed, or mixtures thereof with wool dyestuffs capable of being chromed, by using an alkali metal salt of chromic acid, and towards the end of the dyeing process, or in an after-treatment, a salt of trivalent chromium. Suitable salts are chromic fluoride, sulphate, formate, acetate and oxalate, or mixtures of these may be used. Improvements in fastness to water, washing, fulling, sea-water and perspiration by treatment with these salts are readily obtained with dyestuffs containing salicylic acid groups and with o-hydroxyazo dyestuffs. The following examples are specified: (1) a fabric of 70 per cent wool and 30 per cent viscose artificial silk is dyed with the azo dyestuff 4,41-diaminodiphenyl urea (1 mol.) \sQ salicylic acid (2 mols.) in a bath containing sodium chromate and ammonium sulphate and is then treated for 1/2 hour with a solution at 90 DEG C. of chromic sulphate or formate, when the fastness properties are greatly improved. In place of this after-treatment chromic formate may be added to the dyebath near the end of the dyeing process; (2) a fabric of 30 per cent wool and 70 per cent viscose is dyed as in (1) with the use of the dyestuff 1-hydroxynaphthalene-5-sulphonic acid \sM 4,41-diaminodiphenyl-3,31-dicarboxylic acid --> (alkaline) 2-phenylamino-5-hydroxynaphthalene-7-sulphonic acid; the fastness to washing is considerably improved; (3) the fabric of (2) is dyed as in (1) with the use of the dyestuff salicylic acid \sM 4,41-diaminodiphenyl --> (alkaline) 2-(p-cresotinsulphonyl) - amino - 5 - hydroxynaphthalene - 7-sulphonic acid giving bluish dyeings of greatly improved fastness to washing; (4) a fabric of 70 per cent wool and 30 per cent staple fibre is dyed by the metachrome process with a mixture of the substantive dyestuff of the formula <FORM:0483564/IV/1> and the dyestuff 3.4.6 - trichlor - 2 - amino - 1-hydroxybenzene --> 1-acetylamino-8-hydroxynaphthalene-4-sulphonic acid giving greenish-blue to navy blue shades and after-treated in a separate bath containing chromic fluoride to improve the fastness to washing etc.; alternatively, chromic sulphate may be added to the metachrome bath near the end of the dyeing process. It is also possible to dye the fabric with the dyestuff mixture from a neutral or weakly acid bath, add sodium bichromate and then treat in a second bath with chromic sulphate, or the bichromate may be in the second bath and the chromic sulphate added towards the end of the treatment. 2 - (p - Cresotinsulphonyl) - amino - 5 - hydroxynaphthalene-7-sulphonic acid is obtained by condensing 2-amino-5-hydroxynaphthalene-7-sulphonic acid with p-cresotinic acid sulphochloride.
Patent GB-190452-A (GB)
IPC: H01H71/38
Filed: 1922-10-19
Abstract: 190,452. Akt.-Ges. Brown, Boveri, et Cie. Dec. 14, 1921, [Convention date]. Automatic circuit-breakers; arc-rupturing devices; contacts.-An automatic circuit breaker has current led from the terminal a to an annular blow-out and tripping coil b<1>, b<2> which is divided axially into two portions. The end of this coil is attached to a horn c which is connected by a flexible lead e to a movable tip d. The current passes thence to a horn f and to the terminal. g. Embracing the coil b<1>, b<2> is a U-section magnetic member k which is of annular shape but has a gap in its lower portion. The contact d is carried by an arm h pivoted at i at the centre of the coil b<1>, b<2>, this arm projecting through a slot m in the member k. The tripping device comprises a core n and a pivoted armature o attached by a link to a pivoted latching lever r which has a notch in which is retained a detent s attached to the arm h. As shown, the switch is retained against the action of springs p, q, but on overload the attraction of the armature c releases the detent s and enables the spring h, q to move over the contact d, breaking the circuit between members d, f. The arc formed between these members is blown upwards and outwards along the horns c, f by the electrodynamic action between the current in the coil b', b<2> and the current in the path c, e, d, the arc and f, these, two currents flowing in opposite directions. In a modification, the tip d is dispensed with, the whole of the horn c being moved by the arm h which projects through the gap in the magnetic member k. The coil b<1>, b<2> may alternatively be energized from a separate supply.
Patent GB-1370045-A (GB)
Title: Visual indicator arrangment for monitoring deep-frozen products
IPC: G01K11/06
Filed: 1972-06-19
Abstract: 1370045 Temperature indicators BAUMGARTNER PAPIERS S A 19 June 1972 [22 June 1971] 28511/72 Heading G1D A device for indicating the thermal history of deep frozen products comprises capsules 95, 96, embedded in insulating sheets 90, 91, each capsule 95, 96 being attached to a respective filter paper strip 92, 93 and containing an indicating liquid having differing melting points which correspond to critical temperatures of the frozen product. The strips 92, 93 are fastened together at their ends thereby having a common indicating zone 94. On freezing, when adjacent the product surface, the capsules 95, 96 open, for example by cracking, so that any subsequent rise in temperature causes one or both of the now solid indicators to melt, the liquid(s) then diffusing  along their respective strip 92, 93 and causing a colour change upon reaching the zone 94. The rate of travel of the liquid depends upon its viscosity, which is temperature dependent, and the shape of the strip 92, 93. Thus by careful selection of the strip shapes, it is possible to delay any colour change at the zone 94. Thus a particular colour change indicates how long the product has been above a given critical temperature. The insulating blocks 90, 91 simulate the temperature conditions prevailing within the frozen product. Suitable liquids are acidified mixtures of  ethanol and water which give a green/red colour change with a mixture of bromocresol green and methyl red impregnated in the zone 94. If more than 10% ethanol is required (corresponding to a critical temperature below - 8‹ C.) the constituents are kept separate until cracking of the containers occurs on freezing.
Patent GB-1279928-A (GB)
Title: Fluorescent lamp dimming circuit
IPC: H02M7/155
Filed: 1970-06-12
Abstract: 1279928 Discharge lamp dimmer ITEK CORP 12 June 1970 [27 June 1969] 28536/70 Heading H2H The light output of a negative resistance lamp 10 is controlled by means of a thyristor 14, whose firing period is determined by unit 22. In order that the thyristor may be fired at a point in the A.C. cycle at which the circuit voltage is insufficient to fire the lamp, the lamp is maintained in the fired state by means of a resistor 26 which carries a very small current, in parallel with the thyristor. The thyristor may be replaced by any gated switching device, e.g. a triac, or a thyratron. The load may be a fluorescent lamp, a mercury lamp or an arc lamp.
Patent GB-965437-A (GB)
Title: Improved agricultural or horticultural implement
Inventor: CARNALL HARRY JOHN
IPC: A01B33/08
Filed: 1961-01-25
Abstract: The subject-matter of this Specification is identical with that of Specification 965,436 but the claims differ.
Patent GB-1059131-A (GB)
Title: Containers and their manufacture
IPC: B29C48/00
Filed: 1963-07-19
Abstract: 1,059,131. Plastics containers. ILLINOIS TOOL WORKS Inc. July 19, 1963 [July 20, 1962], No. 28730/63. Heading A4A. [Also in Divisions B5 and F4] Insulated plastics containers are made as shown by laminating a layer of foamed plastics material 36 of e.g. polystyrene, to a thinner high density layer 28 of the same or similar material, heating as shown at 16 to swell the cells of the foam layer, heating at 18 on the high density side only to cause the cells immediately adjacent to that layer to rupture, thus providing a gaseous interlayer, and moulding at 20 to the desired form. The process may be continuous in which case means 56 are provided for advancing the laminate; alternatively the laminate may be rolled up at 39 and stored until required. At the forming stage 20, the laminate is gripped by clamps 58, 60 to prevent escape of gas from the ruptured cells, and the heated plug 66 forces the material into the chilled cavity 72, whereupon a pressure differential is created across the material by either admitting air into the cavity through holes 70 in the plug, or by extracting air from the lower portion of the cavity; this pressure differential causes the material to contact the walls of the cavity where it sets, and finally the mould is closed completely so that the co-acting lip 74 and edge 68 cut off the remaining material. The knock-out plug 76 then removes the finished article from the mould, and new material is automatically fed into place. A characteristic feature of the final product is that the wall thickness at the projections 78, 79, which represent that part of the container which will be held, varies, the thickness at points such as 82 being twice the thickness of points such as 84, this feature being obtained by the gas trapped between the layers, which transmits the applied pressure to the outer layer and thus forces it to adopt the shape of the projections. To improve the "nestability" of the containers, a shoulder 88 (Fig. 10) may be provided which is cooperable with the inner shoulder 96. The high density layer may form the inner surface of the container if required (Fig. 11). Alternative methods of forming the cup from the laminate include vacuum forming, drape forming and snap-back forming.
Patent GB-923681-A (GB)
Title: Sales promotional cards
IPC: B42F5/00
Filed: 1959-08-21
Abstract: 923,681. Tickets. R. H. HOESE. Aug. 21, 1959, No. 28741/59. Class 73. A sales promotional card includes a sheet 11 of relatively thin material with indicia on its front face concealed by a seal member 19 of relatively thick material, detachably secured to it and with means on the back face of the sheet (Fig. 2, not shown), to prevent detection of indicia through the sheet. The seal member is secured by stitching 20, preferably zig-zag and overlapping at 30 so as to prevent removal or mutilation of the seal without detection. The indicia covered relates to a prize to be awarded to a customer after a specified number of visits to an establishment, the visits being recorded by punching the edges of the card at 15.
Patent GB-712807-A (GB)
Title: Wash-basin emptying means
IPC: E03C1/23
Filed: 1952-11-14
Abstract: 712,807. Wash basin stoppers; traps. DIIMPRE, H. Nov. 14, 1952 [Nov, 27, 1951], No. 28747/52. Classes 26 and 33 A combined closure and overflow prevention valve for a washbasin comprises a housing 1 for securing to the outlet of the basin 8 with a valve seat 9 at its top, and a spindle 13 horizontally journalled in the housmg and carrying a radial arm 12 to which is attached a valve member 14 and a second radial arm external to the housing carrying a counterweight 16 so that the valve can support a head of water in the basin. The housing also may, as shown, include a trap formed by an internal wall 17 and a removable cup 18.
Patent GB-689213-A (GB)
Title: Improvements in the application of grease to a moving belt
IPC: B07B13/00
Filed: 1950-11-24
Abstract: 689,213. Separating diamonds. INDUSTRIAL DISTRIBUTORS (1946), Ltd. Nov. 24, 1950 [Dec. 6, 1949], No. 28826/50. Class 82(ii) [Also in Group VIII] An apparatus for the recovery of diamonds from gangue comprises means for applying grease to a moving belt to form a uniform thickness thereon consisting of a grease chamber open at its lower end past which the belt is drawn, means to heat at least that portion of the grease within the chamber which is in contact with the belt, and a ledge projecting from the chamber in the direction of movement of the belt which defines a throat to compress the grease to the desired thickness. The gangue is deposited upon the endless belt from a hopper 21, Fig. III, whilst water is flowed upon the belt from a trough 22. The diamond constituent of the mixture sticks to the grease and the valueless material is washed into a launder 23. The upper layer of grease and adherent matter is removed by a scraper 24 and is withdrawn in a bin 25 for further treatment. The chamber 2 is rectangular in plan and has one wall 8 bent outwardly to form the ledge 11, which may be stiffened from a T- piece 13. Electrical heating elements 19 extend across the chamber at its lower end. The wall 5 of the chamber on the side at. which the belt enters is spaced apart from the belt to allow the passage of the grease remaining thereon. A plunger 18 may be provided to force the grease downwardly and a plate 3 may be provided to support the belt.
Patent GB-802256-A (GB)
Title: Method of and apparatus for aluminothermically resurfacing faults in wheel-supporting track members
IPC: B22D19/10
Filed: 1956-09-20
Abstract: 802,256. Casting composite-articles. ELEKTRO-THERMIT G.m.b.H. Sept. 20, 1956 [Nov. 5, 1955], No. 28833/56. Class 83 (1). Worn &c. surfaces of bull-headed track members are resurfaced by cutting out the defective part, surrounding the defective part with a mould of ceramic material, preheating the part to be repaired with one or more burners, and then filling the mould with aluminothermically-produced steel. A sheetmetal box c is placed around the portion to be re-surfaced, and secured in position by struts d bearing on the foot of the rail. Bottom-plates e engage beneath the rail-head, and side-plates g may be inserted to reduce the size of the mould. The box is then filled with, e.g. sand or fireclay, the cavity being formed by tamping g down a pattern f.
Patent GB-821046-A (GB)
Title: Ribbed pipes for heat exchangers
IPC: B21C37/26
Filed: 1955-10-11
Abstract: 821,046. Making ribbed pipes for heatexchangers; jointing. VITS ELEKTRO G.m.b.H., and VITS, H. Oct. 11, 1955 [Oct. 13, 1954], No. 28884/55. Classes 83 (2) and 83 (4). [Also in Group XIII] A method of making a helically-ribbed pipe for heat-exchangers consists in rolling a red-hot iron band 2 of knife-shaped or triangular crosssection into a helix and applying the formed band to a pipe 1 of oval or elliptical crosssection and allowing the band to shrink thereon.
Patent GB-846809-A (GB)
Title: Charging and discharging device for plants for the direct electrical resistance heating of metallic rod-shaped bodies
IPC: F27D99/00
Filed: 1958-09-09
Abstract: 846,809. Roller conveyers. BROWN, BOVERI & CIE A.G. Sept. 9, 1958 [Sept. 10, 1957], No. 28918/58. Class 78 (1). In a direct electrical resistance heating plant for rod-shaped metallic bodies, the rods h are fed to the plant by a roller conveyer a disposed above and to one side of it and are discharged at regular intervals on to a slide k down which they slide on to a series of stationary positioners d and pivoted transfer elements e disposed between the parts i of the heater. Each member e is coupled to a pivoted carrier arm c provided with a lining f of heat and electrical insulating material. Each arm c is actuated by an hydraulic drive g, or a mechanical or pneumatic drive. At first the bar occupies the position shown in Fig. 2. Actuation of the device ,g raises the arm c to bring its end into engagement with the bar to raise it into the position shown in Fig. 1. When the heating process is completed, the arm c is lowered, thereby turning the member e downwards to such an extent that the bar slides down it on to the lower roller conveyer b.
Patent GB-205690-A (GB)
Title: Improvements in or relating to weighing scales
IPC: G01G1/00
Filed: 1922-10-24
Abstract: 205,690. Wade, H., (Spotz Co., Inc., C. A.). Oct. 24, 1922. Pendulum-weight apparatus.-In an automatic weighing scale having an indicating pointer or equivalent operated in the indicating direction by a motor independent of the weight to be weighed, an adjustable cam is provided for limiting the action of the motor, the position of the cam being controlled by the weight being weighed. The load on the platform actuates a draw-rod 1, levers, 2, 6, and a vertically movable bar 11. The bar is supported at the top and the bottom by flexible bands 19, 20 passing over roller members 12, 13 which are supported by flexible bands 23, 24 and carry pendulum levers 21a, 22a. The roller members have rolling contacts each at two points, with stationary members 21, 22. Attached to the bar 11 is a bracket 11<a> carrying a number of studs 33<c> which may be adjusted so as to vary the shape of a flexible strip 32 against which bears a roller 25<c> carried by an indicating quadrant 25, the usual indicating pointer being actuated by the quadrant. A motor in the form of an adjustable weight 30 tends to maintain contact between the roller 25<c> and the flexible strip 32, and thus actuates the indicating pointer in the forward direction. A dash-pot 35 retards the upward movement of the bar 11, and a dash-pot 31 with a slower action retards the pointer mechanism so that equilibrium is established before the roller 25<c> makes contact with the flexible strap 32.
Patent GB-223757-A (GB)
Title: Improvements in or relating to printing cylinders or rotary intaglio or photogravure printing machines
IPC: B41F27/12
Filed: 1923-11-16
Abstract: 223,757. Penrose & Co., Ltd., A. W., and Owen, M. Nov. 16,1923. Printing-surfaces. - A metal printing-sheet is secured to a printing-cylinder by attaching one slotted end of the sheet to fixed lugs in a gap in the cylinder and attaching the other slotted end to lugs on adjustable straining members in the gap which also serve to prevent disengagement of the sheet from the fixed lugs. The ends of the sheets 9 are slotted, folded over, and reinforced by rods 4, 5, the slots in one end engaging with fixed lugs 8 on the cylinder gap. The slots in the other end engage lugs 1 on members 2 which are pulled toward the bed of the gap to tighten the sheet by studs 3 screwed into the bed of the gap or into a plate 10 attached to the bed. Slots 2a are provided in the members 2 to permit them to fit over the lugs 8 and prevent disengagement therefrom. Capping pieces 12, 13, 14 fit over the adjusting members 2 in the gap, the centre piece 13 being secured by screws 16, 17 to the cylinder and having pins 21 entering holes 22, 23 in the outer pieces so as to interlock with them. The outer ends of the pieces 12, 14 are secured against axial and radial movement by segmental studs 28 which screw into holes 26, 27, formed partly in the pieces 12, 14 and partly in the cylinder, so that a half turn of the studs allows the pieces to be removed or locked in position. The pieces 12, 13, 14 are recessed so as to bridge the members 2. Specification 223,756 is referred to.
Patent GB-1008768-A (GB)
Title: Forced-flow vapour generators
IPC: F22B29/02
Filed: 1962-07-27
Abstract: 1,008,768. Forced flow steam boilers. SULZER FRERES S.A. July 27, 1962 [July 27, 1961 (2)], No. 29053/62. Heading F4A. A forced-flow, once-through vapour generator, particularly one operating at supercritical pressure, has furnace lining tubes which extend vertically in parallel relationship between inlet and outlet headers 54, 60 and 58, adjacent tubes being connected together over the height of the combustion chamber 10 by welding or as shown (Fig. 5) by elements 86 to which the tubes are welded. A vertical panel of similarly connected tubes 29 forms a partition in the combustion chamber, the tubes 29 extending in parallel between inlet and outlet headers 40, 42. At full load, when the generator operates as a once-through, forced-flow system, the working medium flows serially through an economizer 32 in a rear gas pass 14, the partition tubes 29, rear gas pass wall-lining tubes 47 which may be interconnected as shown in Fig. 5 and then to the wall-lining tubes of the combustion chamber. From the outlet header 58 into which the latter tubes discharge, the working medium flows through superheating surfaces 70, 80 before flowing to a turbine 82. A reheating stage 84 is disposed in a lateral gas pass 12. At part load a recirculating pump 90 draws part of the working medium from the header 58 and delivers it into a mixing vessel 36 for recirculation through the heating surfaces together with the through-flow also delivered to the mixing vessel 36 by a feed pump 30. Recirculation of the working medium serves to prevent temperature unbalance and stresses in the wall panels which might lead ultimately to fatigue failure. The four walls of the combustion chamber are welded together or to connecting elements at the four corners to form a gas-tight easing which may be suspended by hangers 93 at the upper end. In modification, Fig. 1 (not shown), the outlet header for the tubes forming a partition in the combustion chamber is connected directly to the inlet headers for the wall lining tubes.
Patent GB-977758-A (GB)
Title: Improved plant for manufacturing cellular concrete products
Inventor: GOERANSSON ROLF ERIK
IPC: B28B23/02
Filed: 1962-07-30
Abstract: 977,758. Cutting concrete. INTERNATIONELLA SIPOREX A.B. July 30, 1962 [Nov. 25, 1961], No. 29107/62. Heading B5A. Cellular concrete is cut, whilst still plastic, by supporting it on members 5 carried by a truck T 1  and causing wires 13 to be passed through it. Each member 5 is lowered in turn to allow the lower cutting frame 12 to be passed between it and the concrete. As shown in Fig. 2, hydraulic jacks 14 operate slides 18 which act on members 9 connected to bell cranks 6 which engage the members 5. The cutting frame is mounted on rails 30 and the cutting may take place by keeping the truck T 1  stationary and moving the cutting wires or by keeping the cutting wires stationary and moving the truck T 1 . In a modification, Fig. 4, the members 5 are supported by springs 23 which are released by pulling them outwardly by cams 25 to allow the members 5 to drop by gravity. The members 5 being lifted, after the lower cutting frame has passed, by hydraulic cylinders 14<SP>1</SP>. In a further modification, Fig. 11, the concrete supporting members 32 carried by supports 33 are moved laterally to allow the supports to pass through holes 35 and thus allow the members 32 to drop. The side walls 60 of the mould may be left in position to support the concrete laterally.
Patent GB-1359734-A (GB)
Title: Foams impregnated with aqueous polyurethane dispersions and a  process for impregnating foams
IPC: C08J9/40
Filed: 1971-06-22
Abstract: 1359734 Impregnating foams BAYER AG 22 June 1971 [24 June 1970] 29174/71 Heading B2E [Also in Division C3] Foam is impregnated with an aqueous dispersion of a polyurethane which in the homogeneous fully reacted form has a Shore A hardness (DIN 53505) of at least 5 and a pendulum hardness (DIN 53157) of at most 240. The foam itself may be a polyvinyl chloride, latex, natural or a polyurethane foam. Any polyisocyanate may be used to prepare polyurethane foams and numerous examples are provided. Additionally polyhydroxy polyethers may be incorporated. Impregnation may be effected by alternate compression and relaxation. Drying may be effected by wringing out and heating at 130‹C for ¢ hour. Fireproofing effects can be achieved by incorporation of polymethylene urea, antimony compounds, red phosphorous and other fireretarding fillers.