baber/WOPTO huggingface dataset:
Patent GB-923090-A (GB)
Title: Process for dyeing cellulosic textile materials
Filed: 1961-10-16
Abstract: Cellulosic textile materials are dyed with reactive vat dyestuffs by a single-bath pad-steam process in which the material is impregnated with a padding solution containing the dye, an alkali and a reducing agent and subsequently subjected to a heat treatment.  Suitable dyestuffs are from the anthraquinone, perylene tetracarboxylic acid, naphthalene tetracarboxylic acid or pyrene-quinone series or indigoid vat dyestuffs.  In addition to at least one reactive grouping (many specified) the dyes may contain usual substituents such as halogen atoms, alkoxy, acylamino and arylamino groups.  Specified alkalis are alkali metal and alkaline earth metal hydroxides, alkali metal meta-silicates, triphosphates and carbonates and organic bases such as "Triton" (Registered Trade Mark) B and bicyclo-(2:2:2)-triethylene diamine.  The specified reducing agents are sodium hydrosulphite or thiourea dioxide or especially the weaker reducing agents sodium sulphide or hydrosulphide, hydroxymethane sulphuric acid or a metal salt thereof.  The padding liquor may be applied at below 40 DEG C. and the padded material may then be steamed for 1/2 -5 minutes without intermediate drying.  It is of advantage to follow fixation with rinsing, soaping and reoxidative treatments.  Examples of dyeing and printing are given.
Patent GB-1278267-A (GB)
Title: Treatment of phthalate esters
Inventor: CHILTON JOHN REGINALD
IPC: C07C69/80
Filed: 1968-08-02
Abstract: 1278267 Phthalate esters IMPERIAL CHEMICAL INDUSTRIES Ltd 1 July 1969 [2 Aug 1968] 37040/68 Heading C2C A process of improving the electrical insulating properties of an ester of phthalic acid with an alcohol having 4 to 15 carbon atoms comprises contacting the ester with fuller's earth. Such esters are employed to plasticize polyvinyl chloride insulating materials. In the example, di-isodecyl phthalate, obtained by reacting an isodecanol mixture with phthalic anhydride in the presence of sulphuric acid, is heated with fuller's earth.
Patent GB-1480633-A (GB)
Title: Apparatus and method for classifying slurries of paper-making fibres into fractions of different fibre lengths
IPC: D21D5/02
Filed: 1974-08-23
Abstract: 1480633 Paper pulp screening apparatus BLACK CLAWSON CO 23 Aug 1974 [28 Aug 1973] 37257/74 Heading B1D Apparatus for screening paper pulp slurry comprises a tangential inlet 13 leading to the interior of a cylindrical screen 15 having axially oriented slots 40 whose width (Fig. 2) is considerably less than that of the solid lands 42 between them, whereby fibres whose length exceeds the width of lands 42 tend to catch across the lands rather than pass through the slots, rotating vanes 35 then removing such caught fibres which are eventually discharged through rejects valve 23. The slurry flows helically down the screen and fibres tend to orientate tangentially thereof. Typically slots 40 are 0.5 mm wide and 2 mm apart so that fibres longer than 2.2 mm are rejected, while short fibres and particulates pass outwards through the screen to outlet 18. Screen 15 has three rows of slots 2 inches long and the rows are 1 inch apart. Vanes 35 extend helically and are adjustably mounted at 37 on rotor 30. Slots may be provided with narrow portions extending only part way through the screen on the upstream side (Fig. 3 not shown). A valve 25 enables heavy solids collecting at the bottom of the rejects chamber 21 to be discharged into box 24.
Patent GB-1028600-A (GB)
Title: Dyeing process
Inventor: MAWSON JACK FRANKLAND
IPC: D06L4/671
Filed: 1962-02-26
Abstract: Materials consisting wholly or partly of cellulose are treated under alkaline conditions with an aqueous solution or dispersion of a vat dye or lenco ester thereof, a sulphur dye, a direct cotton dye containing anionic solubilising groups or an optical bleaching agent and a cellulose reactant selected from disodium tris-[beta-sulphatoethyl) sulphonium inner salt, divinyl sulphone and di-(beta-hydroxyethyl) sulphone.  The material may be first impregnated with an aqueous liquid containing the dye and cellulose reactant and then subjected to a second impregnation with an alkaline solution which may further contain other dyefixing or-solubilising agents, e.g. sodium hydrosulphite, sodium sulphide, sodium nitrite and sodium chloride.  This treatment may be followed by steaming or standing at room temperature from a few seconds up to 24 hours.  In some cases the material may be impregnated with an aqueous liquid containing dye, cellulose reactant and an alkali in alkali-generating substance, dried and heated up to about 200 DEG C.  Suitable cellulose materials are cotton, linen, viscose rayon and polynosic and high wet modulus rayons.  Examples are given.
Patent GB-937341-A (GB)
Title: Improvements in glass sealing machines for cathode ray tubes and like glass assemblies
IPC: C03B23/217
Filed: 1958-11-20
Abstract: 937,341. Sealing glass parts. P. V. PINCKNEY, and EXE ENGINEERING CO. Ltd. Feb. 22, 1960 [Nov. 20, 1958], No. 37308/58. Class 56. For sealing glass parts together, such as the rectangular cathode-ray tube to its glass body, the parts being axially rotated relative to glass fusing means, the fusing means are supported on carriers round the axis of the parts, each carrier being pivotally attached through a parallelogram linkage to a stationary part of the apparatus so as to be capable of movement solely in a direction substantially radial to the axis and means, such as a cam, for controlling the position of each carrier during rotation of the parts. As shown in Fig. 1, each carrier 3 comprises a pair of spaced plates 4 pivoted to parallel links 5 in turn pivoted to a plate 6 secured on the annular frame 1, one link 5 having an extension 10 to which a tension spring 9 on the frame 1 is secured to maintain a roller 8 on carrier 3 against a cam 7 rotating with and corresponding to the parts to be sealed. A gas burner, or other heater such as an electrode, is secured to the carrier 3 by screws in tapped holes 11, spaced to provide alternative positions thereof. In easier replacement of the cam 7, aligned holes may be provided in the frame 1 and rear plate 4 into which a peg is inserted to hold the carrier 3 out of position. In place of a single roller 8, a pair of rollers 16, as in Fig. 4, is mounted on a cross member 15 pivoted to the end of the carrier 3 and the multi-jet burner 18 is mounted on an arm 17 attached to the cross member 15. A number of variations of parallel linkage for the burner positioning is shown and, as in Fig. 10, three rollers 23, 26, 26 are mounted on the carrier 3 and cross members 24, 25; the cross members 24, 25 are linked to lateral pivoted members 19 and the burner arms 17 are mounted on plates 27 pivoted to the carrier 3 and the links, alternative positions for the plates 27 being provided.
Patent GB-829874-A (GB)
Title: Improvements in or relating to the production of a negative photogravure screen and camera apparatus therefor
IPC: G03F5/20
Filed: 1955-12-29
Abstract: 829,874. Photogravure procedure and camera apparatus therefor. GARDNER, R. M. Nov. 26, 1956 [Dec. 29, 1955], No. 37316/55. Classes 98(1) and 98(2) A photographic representation in photogravure formation for use in preparation of a printing plate or cylinder is made by exposing a negative through a lens, a halftone screen and a negative photogravure screen having splayed openings relative to the openings of the halftone screen, so that light rays diverging from the lens and passing through the centres of the openings of the half-tone screen will pass also through the centres of the openings of the photogravure screen to give normal halftone formation up to the joining of the dots and thereafter photogravure formation with provision for support of the doctor blade. The screen assembly is made first, as with the apparatus of Fig. 1, which is an exploded view showing from left to right a halftone screen holder 12, screen 15 (rulings, which are normal, not shown), rectangular frame 3, screen supporting frame 7 front view, then rear view thereof; photographic plate 18 and holder therefor 34; all of this being assembled so that the' screen 15 is at its correct working distance from the plate 18, and exposure is effected in a camera to give a same-size image of a light source through lens 40 of Fig. 5 and stop 36 having apertures 37 of Fig: 7 to give openings 44 with latent screen lines 43 of the negative photogravure screen in splayed positions relative to openings 41 of the half-tone screen 15 as shown in Fig. 6. Plate 18 is removed after this exposure, processed, and returned to its original position at the rear of support frame 7 and a sensitive plate is placed in contact therewith; a negative from which the photogravure positive is to be made is positioned in front of the camera lens and with the same extension but with an iris diaphragm adjusted to the aperture for the working distance of the half-tone screen replacing the square stop of Fig. 7 exposure is effected through the two screens in register and the plate so exposed is removed from the camera and processed to show full tone range of the negative but with doctor blade provision of greater area than that formed by other methods. The invention includes the method of producing the splayed negative photogravure screen, and camera apparatus fitted with a square line stop as of Fig. 7 and the necessary features as of Fig. 1 to produce this screen.
Patent GB-850300-A (GB)
Title: Improvements in bar feeds for automatic lathes and other machine tools
Inventor: TAYLOR ROBERT CECIL
IPC: B23B13/00
Filed: 1957-12-02
Abstract: 850,300. Bar-feeds for lathes. RATBY ENGINEERING CO. Ltd. Nov. 21, 1958 [Dec. 2, 1957], No. 37483/57. Class 83 (3). [Also in Group XXIII] A bar-feed for lathes or centreless-grinders is of the kind comprising a stand upon which is mounted a long horizontal feed-tube and a pusher-element slidable axially within the tube to engage the end of a stock-bar to feed it into the machine-tool, and is characterized in that one-half of the feed-tube (the " lid "), is divided transversely at intervals into a number of independent sections which are successively unlocked to permit the free passage of a carriermember for the pusher element. The bar-feed device is of the general form described in Specification 784,407. The feed-tube T, Fig. 1, is supported by a number of brackets from a large-diameter tube 1, which is carried on adjustable supporting-pillars 2 so that the feedtube is in alignment with the machine-spindle to which stock-bars are to be fed. The lower half 7 of the feed-tube is a one-peice bar of rectangular cross-section, the upper surface of which is channelled to take a stock-bar. The complementary upper half or " lid " of the feed-tube, instead of being in one piece as in the above Specification, comprises a number of independent sections 9a, the two end sections of the series being shorter than the others. Each lidsection is carried by a pair of spaced twoarmed levers 10 rigidly secured to a short hinge shaft 11. One of the downwardly-directed arms 10a of one of the levers 10 of each lid-section is connected by a link 15, Fig. 6, to one of a number of levers 14 secured to a rock-shaft 13, parallel to the feed-tube. The shaft 13 is rocked by a pneumatic cylinder to open all the lid-sections simultaneously to allow a fresh stock-bar 8 to pass from the store-rack R to the inside of the feed-tube. All the lid-sections are then tightly closed and locked by pivoted latchmembers 44, Fig. 8 (unlatched condition). The pusher-member 29, Fig. 9, previously withdrawn by motor rotation of a continuous chain 31, is now fed forwardly, and a leading campiece 51a on the carrier 30 for the pusher wedges between latch-member 44 and the side-wall of a lid to open the lid-sections seriatim by a small amount " x," Fig. 8, to allow a passage for the pusher-carrier 30. The lid-sections are pressed open by spring-plungers 47 engaging stops 46 on levers 45, secured one to each hinge-section 11. This movement is permitted by the linkage 10a, 15, through a pin-and-slot connection 16, 17.
Patent GB-359286-A (GB)
Title: Improved manufacture of rubber
IPC: C08K5/46
Filed: 1930-12-12
Abstract: The ageing of rubber is retarded by the addition to the mix of a thio diaryl substituted amine together with an adjuvant which may be any other organic compound which exhibits age-resisting properties but which is substantially a non-accelerator when incorporated into a rubber mix.  The thio diaryl substituted amine has the general formula <FORM:0359286/V/1> where R and R1 are aryl groups.  Examples of the compounds are:-thio phenyl-b -naphthylamine, thio phenyl-a -naphthylamine thio paratolyl-a - or b -naphthylamine, thio xylyl-a - or b -naphthylamine, thio-a -b -dinaphthylamine thio-b -b -dinaphthylamine, thio-a -a -dinaphthylamine thio diphenylamine, thio di-tolylamine, thio dixylylamine, thio phenyl tolyl amine, thio phenyl xylyl amine and thio tolyl xylyl amine.
Patent GB-959845-A (GB)
Title: Improvements in fluid control valves
IPC: F16K1/20
Filed: 1961-10-20
Abstract: 959,845. Valves. H. E. B. SCOTT. Oct. 10, 1962 [Oct. 20, 1961], No. 37739/61. Heading F2V. A valve, for controlling the flow of a slurry such as that rejected from a screen in a papermaking process, comprises a valve chamber 10 for connection in a pipe-line and a valve member 14 or 114 in the chamber which is adjustable to provide, between one end of the valve member and a wall of the chamber, a variable area metering orifice, the valve member extending across the chamber in a direction inclined to the direction of flow to direct the solid constituents of the slurry toward the metering orifice, this orifice being of rectangular shape and having a width between one-third and two-thirds of the diameter of the pipe-line and having an area equal to that of the pipe-line when the valve is fully open. In Fig. 2 the pivoted vane closure member 14 co-operates with an edge 13. Flushing water is supplied through passages 18, 19, 20 in the valve member to wash the sliding faces of the vane. In the embodiment of Fig. 5, the rectilinear slide valve member 114 fits against longitudinal abutment surfaces of the chamber 10 on the downstream side, the member having a bevelled end 28 which coacts with an inclined face 29 of the chamber to force the member against the abutments in closed position. Normally, the valve is maintained not less than 10% open by stops (not shown) and may be opened periodically to full bore. The invention enables the degree of opening required for a given flow area to be increased and thereby avoids the trapping of fibrous material when the valve is only partially open. An automatic system for periodically opening the valve to full bore, comprises a timing motor 21, Fig. 4, which operates a switch 1A, 1B, Fig. 4, in the circuit of a solenoid-operated valve 24 controlling an air-operated cylinder 16 connected to the main valve 14, the solenoid circuit being supplied through a transformer 22 paralleled with the motor. The valve may also be operated manually through a switch S2. Exhaust air is restricted by a needle valve 25. A non- return valve 26 in the supply ensures the cylinder 16 remaining under pressure in the event of failure in the air supply.
Patent GB-1267572-A (GB)
Title: Slabs of refractory heat-insulating material
IPC: B22D7/10
Filed: 1969-07-29
Abstract: 1,267,572. Ingot moulds; extracting ingots. FOSECO INTERNATIONAL Ltd. 29 July, 1969 [29 July, 1968], No. 38067/69. Heading B3F. [Also in Division C3] A slab 2a of refractory heat-insulating material (see Division C3) comprising granular refractory material, fibrous material and a binder, has along one edge a flange 6a wholly interrupted at least once to provide a gap. One composition includes a foaming agent. Two of such slabs 2, 2a, together with corner wedges 3 and slabs 1, 1a with single flanges 4, 4a, form a hot top in an ingot mould. The gaps between the flanges on the slabs 2, 2a register with slots 7 in the wall of a big-end up mould. Cast iron rods 8 are located in the slots, so that when the mould is lifted and stood on a flat surface, a stripping pin projecting from below the mould base is pushed up and raises the ingot and when the mould is again lifted, the rods 8 engage the sides of the ingot on the hot top and prevent the ingot slipping back fully into the mould.
Patent GB-1164934-A (GB)
Title: Improvements in Hosepipes.
Inventor: BRINSON ROGER
IPC: F16L11/02
Filed: 1967-05-16
Abstract: 1,164,934. Hoses. GEORGE ANGUS & CO. Ltd. 9 May, 1968 [16 May, 1967; 18 Aug., 1967], Nos. 22744/67 and 38114/67. Heading F2P. A hose comprising a woven textile jacket with a thin composite lining tube, of thermoplastic or elastomeric polymeric material, bonded to jacket is characterized in that the composite lining consists of inner and outer layers bonded together and having thermal softening points at different temperatures, the thermal softening point of the inner layer being sufficiently higher than that of the outer layer to ensure that, upon subjection of the hose to external heat after introduction of the lining into the jacket, the outer layer flows into the jacket without penetration to the exterior of the jacket while the inner layer retains its original configuration. The outer layer fills in the irregularities of the textile surface the inner layer being selected according to the characteristics desired. The composite lining may be formed by separately fabricated tubes or, the outer layer may be extruded over a preformed inner layer adhesion between the layers in both cases taking place during the application of heat to bond the lining tube to the textile jacket. Alternatively, the lining tube may consist of laminated tubular blown thermoplastic plastics films the layers being bonded together during manufacture. The outer layer may be of cellular form. The two layers of the lining tube may be of different polymers, or copolymers, or of the same basic polymer or copolymer provided that the inner and outer layers have different temperatures for their softening points. Examples of plastics materials are, polyurethanes, polyolefines, polyamides, polyvinyl chloride, copolymers, &c., the outer layer not being made of a polyamide.
Patent GB-348559-A (GB)
Title: An improved method for testing the insulation of electrical apparatus
Filed: 1929-12-12
Abstract: 348,559. Indicating faults ; current meters. BULLEN, A. G., 79, West Walls, Carlisle, and LEE, E. L., 25, Victoria Street, London. Dec. 12, 1929, No. 38150. [Class 37.] The insulation resistance of electrical lines and apparatus is indicated or measured by employing one or more glow discharge tubes provided with shunt conductances which are adjusted so that on the occurrence of a fault current of predetermined magnitude ionization of the discharge tubes will take place. In addition to direct observation methods, ionization may be indicated by employing a local circuit in parallel with the observation tube, or by employing a selenium bridge or photo-electric cell with indicating instruments, or by examining the rays spectroscopically or directing the rays from a number of tubes to a common observation point. In one arrangement, Fig. 2, for testing the insulation between the windings and frame of a motor 17, the glow discharge tube is shunted by a variable resistance 26 or choke 27 or both. The shunt may comprise a resistance of graphite or a metal alloy, or it may be another discharge tube having different characteristics. A multi-electrode discharge tube with a number of shunts is employed for testing multi-core cables.
Patent GB-990776-A (GB)
Title: Improved signal coupling device
IPC: H01R39/64
Filed: 1963-09-27
Abstract: 990,776. Transformers. AMPEX CORPORATION. Sept. 27, 1963 [Oct. 24, 1962], No. 38216/63. Heading H1T. A device for coupling a number of rotating signal outputs with stationary circuits comprises a set of rotatable coupling elements having faces coaxial with, and equally spaced in an axial direction from, a second set of coupling elements. The rotatable coupling elements may be transformer halves comprising ferrite annuli 33a, 33b, 33c, 33d (Figs. 1 and 5) each carrying a toroidal coil 37 in a groove in its face. The fixed coupling elements may be similar transformer halves comprising ferrite plates 32a, 32b, 32c, 32d with windings 36. The gaps between the pairs of transformer halves may be varied by moving the non-rotating annuli by means of a nut 81 against spring 76. The materials and dimensions of the annuli, the spacing rings 61a-61d and 62a-62d, the shaft 21 and the housing 18 are so selected that variation in temperature does not alter the gaps between the transformer halves. Instead of inductive coupling, capacitative or photo-electric coupling means may be employed.
Patent GB-1024126-A (GB)
Title: Improvements in methods of preparing laminates
IPC: B32B27/00
Filed: 1963-09-28
Abstract: A process for making laminated fibrous sheets comprises distributing irregular synthetic thermosetting resin particles whose greatest dimension is between 3 and 75 microns and the moisture content of which is between 3% and 6% over the upper surface of a base of fibrous material, subjecting the resin on the base length of material to heat at a temperature sufficient to render it tacky but insufficient to cure it and thus to cause it to adhere to the base length of material, adhering a further length of fibrous material to the tacky resin, applying further resin to the upper surface of the aforesaid further length of material and subjecting the resin to heat at a temperature sufficient to render it tacky and cause it to adhere to said further length of material, if necessary dividing the length of laminated material into sheet lengths and applying heat and pressure to each laminated length or sheet length to effect consolidation thereof.  The upper surface of said further length of fibrous material may have a decorative effect applied thereto by printing or the application of powdered pigment with the resin prior to lamination, an overlay length of translucent material being adhered thereto.  Specified base lengths comprise a plurality of laminated Kraft paper sheets bonded together with dry phenolformaldehyde resin.  Cellulose pulp is specified for the further lengths of fibrous material.  Wood or rayon fibre paper is specified as the overlay.  Spray-dried melamine formaldehyde resin is the specified resin for the process of the invention; it may be admixed with ureaformaldehyde resin.  In Fig. 1, a continuous web 1 of paper is drawn from a reel 2, covered with dry finely-divided melamine-formaldehyde resin from a vibrating sieve 3, the resin being heated by infra-red heater elements 8, a further length of fibrous material 9 from reel 10 being engaged with the softened resin and adhered thereto by rollers 11 and 12, a further coating of resin being applied by 13 and softened by heat.
Patent GB-906748-A (GB)
Title: Knock-down and stackable cabinet with accessories
IPC: E06B3/50
Filed: 1960-11-09
Abstract: 906,748. Cabinets. NESTAWAY Inc. Nov. 9, 1960 [Nov. 16, 1959], No. 38453/60. Class 52 (1). A stackable cabinet 1 for transporting food has sides 20, 21, top 22, bottom 23, back 24 and a door 18, the sides having flanges 28, 29 and the cabinet having front and rear spring wire frame members 27, 25, the upper edges of which bend inwardly to allow stacking with a similar cabinet or racks 10, 11. Wooden runners beneath the cabinet abut flanges 28, 29 of the other cabinet to prevent lateral movement. Shelves 17 are supported within the cabinet by members 75, 76 comprising wires 77 and having upstanding hook portions 95, 96 connected to the front ends of top supporting wires 77 and the door 18 has holes 102, 103 in its main panel 97 so that it may be hung on portions 95, 96 or slid on wires 77 supported by a marginal strip 98 and by portions 95, 96 engaging the main wall 97. Racks 10, 11 have top and bottom frame members 50, 51 held spaced apart by connector portions 58, 58a.