baber/WOPTO huggingface dataset:
Patent GB-957265-A (GB)
Title: Multi-purpose printing machines
IPC: B41F11/00
Filed: 1962-06-29
Abstract: 957,265. Printing apparatus. SCHNELLPRESSENFABRIK A.G. HEIDELBERG. June 29, 1962 [April 18, 1962], No. 24972/62. Heading B6C. A three-cylinder type rotary printing machine for printing in letterpress, letterpress offset or planographic offset comprises an impression cylinder 6 and cores 7, 8, the latter having associated inking and dampening mechanisms 11, 12. Each of the cores is adapted to mount a shell carrying an appropriate surface. In letterpress printing the core 7, Fig. 4, carries a shell 16 mounting a relief printing plate, the core 8 mounts a shell 14 faced with a rubber blanket which serves to transfer ink from the mechanism 11 to the plate on the shell 16, whilst the cylinder 6 has a partially resilient covering of paper of known type. For letterpress offset, core 8, Fig. 3, mounts the shell 16 carrying the relief plate, core 7 carries the rubber faced shell 14 and the cylinder 6 has a rigid face, preferably of sheet steel. During both these operations the dampening mechanism 12 is withdrawn from the shell carrying core 8. For printing in planographic offset an offset printing plate is carried by a shell 15, Fig. 2, on the core 8, the core 7 mounts the rubberfreed shell 14 whilst the impression cylinder is similar to that described above in relation to the letterpress offset process.
Patent GB-599981-A (GB)
Title: Improvements in chairs and other seats
IPC: A47C7/26
Filed: 1945-09-27
Abstract: 599,981. Seats; securing cushions. BIRMINGHAM GUILD, Ltd., JONES, O. P., and SIDDENS, F. R. Sept. 27, 1945, No. 25035. [Classes 52(ii) and 52(iv)] A seat or back for a chair or other seating is formed as a separate member adapted to be secured to the chair detachably whereby a seat or back cover in the form of a sheet of fabric or other material can be placed on the seat member and clamped thereto either by engaging between opposite edges of the chair frame and seat &c., or by providing the seat &c. member with removable clamping strips or by forming the seat member with opposite edge portions which are normally divergent and are pressed inwardly towards each other and then forced into the chair frame. Fig. 2 shows a detachable seat member 13 formed with, at each edge, a nose 9, depending skirt 14 and channel 15. The cover 17, with or without stuffing 18 is placed in position as shown and held by means of a clamping strip 19, a depression 22 on the seat member preventing accidental withdrawal of the strip 19. Fig. 6 shows a modification in which the seat member comprises an edge frame connected by laths 25. In this case the clamping strip 28 is held in place by bolts 29 passing through lugs 30, recesses being formed on the edges of the strip to enable it to pass the lugs when placing it into position. Fig. 11 shows the seat member formed of fabric impregnated with synthetic resin to make it rigid. The divergent edges 40 are reinforced by metal strips 41 and the seat &c. member is placed in position in the chair frame by pressing the edges inwardly.
Patent GB-693340-A (GB)
Title: Method and apparatus for cutting through weft threads during weaving on looms
IPC: D03D49/70
Filed: 1951-10-26
Abstract: 693,340. Looms ; weft-cutting. SULZER FRERES SOC. ANON. Oct. 26, 1951 [Oct. 28, 1950], No. 25088/51. Class 142(ii) A weft thread cutting device, for gripper shuttle looms, comprises prong-like guiding members disposed on either side of the fabric, which alternately protrude through the fabric as the cutter is operated, serving to keep the cutter between a pair of warp or binding threads. In one embodiment the cutting device comprises a plate 29 loosely mounted on a sleeve 28, which is capable of longitudinal but not rotational movement relative to a shaft 24, this shaft being oscillated about its axis by a cam operated lever 25. Abutments 30, 31, which bear on the breast beam 11 prevent the plate 29 being rocked. Knives 32, 33, forming a pair of scissors, are mounted on plate 29 by a pivot 34, and are actuated by a guiding plate 35 which is fixed to the sleeve 28. Pins 38, 39 on the knives 32, 33 slide in slots 36, 37 in the guiding plate. Two oppositely disposed guiding prongs 40, 41 are fixed to the guiding plate and oscillate with it, one of the prongs always projecting through the fabric, thus guiding the scissors between a pair of warp or binding threads. In a modification a knife is mounted on a sleeve and oscillates with it to cut the fabric.
Patent GB-1063796-A (GB)
Title: Film-forming polymers and their preparation
IPC: C09D5/25
Filed: 1964-06-17
Abstract: Linear film-forming aromatic polyamideester polymers consisting of recurring units <FORM:1063796/C3/1> where R is a tetravalent aromatic group, R1 is arylene and R2 is alkyl or aryl may be prepared by reacting the appropriate diester diacyl halide with a diamine H2N-R1-NH2.  Numerous possibilities are listed for the groups R, R1 and R2.  They may be formed into shaped articles or coatings and converted in situ to the corresponding polyimide.  In specific examples polymers are prepared from 2,5-dicarboethoxy terephthaloyl chloride (diethyl pyromellitate diacid chloride) or 2,5-dicarbo-(beta-cyanoethoxy)terephthaloyl chloride and bis(4-aminophenyl)propane, m-phenylene diamine or 4,41-diaminodiphenyl ether or sulphone.  Compositions and foamed products.-Before conversion to polyimide the polymer or a solution thereof may have incorporated therein other polymers or pigments, conductive carbon black, metal particles, abrasives, dielectrics or foaming agents.  Foamed products may also be obtained by dispersing bubbles of air, carbon dioxide or nitrogen in a melt or solution before cyclization.  Specified solvents include N,N-dialkylcarboxylamides, dimethyl sulphoxide, N - methyl - 2 - pyrrolidone, tetramethyl urea, pyridine, dimethyl or tetramethylene sulphone, hexamethylphophoramide, formamide, N-methyl formamide and butyrolactone. They may be diluted with cyclic hydrocarbons, benzonitrile, dioxane or acetone.ALSO:Solutions of polyamide-ester polymers having recurring units <FORM:1063796/B1-B2/1> where R is a tetravalent aromatic group, R1 is arylene and R2 alkyl or aryl (see Division C3) are used as coating compositions.  They may be applied by doctoring, rolling, dipping, brushing or spraying to various substrates e.g. metals or polymers (extensively exemplified), asbestos, glass, leather or fabrics in the form of sheets, fibres, foams, fabrics, wires or screens. Filler and/or foaming agents may be included in the composition and the resulting coating may be converted to a polyimide by heating above 125 DEG C. or treatment with a monocarboxylic acid anhydride.
Patent GB-833875-A (GB)
Title: Separation of solid materials from gases and vapours
Inventor: SWIFT EWART GEORGE
IPC: B01D45/14
Filed: 1957-08-08
Abstract: 833,875. Centrifugal separators. BRITISH TITAN PRODUCTS CO. Ltd. Aug. 7, 1958 [Aug. 8, 1957], No. 25097/57. Class 23 Deposits are removed from the interior of a cyclone 17 by a rotary scraper comprising rods 30, 31 fixed to rings 26, 27 28, the rings 27, 28 being attached to a rotary shaft 25 and the ring 26 engaging the gas outlet duct 22 of the cyclone. Titanium dioxide pigment from a mill is entrained in steam and is fed to two of the cyclones arranged in series. Pigment is removed from the gas leaving the cyclones by passing it upwardly through a scrubbing tower so that it flows in countercurrent to a descending aqueous stream.
Patent GB-829424-A (GB)
Title: Improvements in or relating to the purification of secondary butyl alcohol
Inventor: TISO PETER
IPC: C07C29/82
Filed: 1956-08-16
Abstract: Sec-butyl alcohol is purified by feeding to an intermediate point in a distillation column a crude mixture comprising a major portion of sec-butyl alcohol together with a minor proportion of water and also a further compound (B) capable of forming a ternary azeotrope with water and which is obtained by condensing and affecting phase separation of a mixture comprising sec.-butyl alcohol compound (B) and water removed from the head of the column, and sec.-butyl alcohol and maintaining the relative proportion of compound (B) and water substantially constant in the upper part of the column <PICT:0829424/III/1> by feeding water or compound (B) to the column either at a point which is substantially not above the feed point of the crude mixture or by direct addition to the crude mixture, the amounts of compound (B) or water fed to the column being varied in accordance with the temperature in the column at a point (X) below the feed point of the crude at which the composition is substantially homogeneous with respect to water.  In an example, a solution containing 64.5% of sec.-butyl alcohol and 30.5% of water was fed continuously to column 2 at the rate of 16.7 parts per minute.  A top product was removed through line 5 at 79 DEG  C. at 3 pounds per square inch pressure, and a bottoms product removed through line 12 at 108 DEG  C. at 9 pounds per square inch.  Temperature settings of the electronic temperature responsive controls 128 and 29 on trays (28) and (12) were 102 DEG  C. and 103 DEG  C. respectively.  Valves 26 and 27 were pneumatically operated by control 28 and pressure could be varied between 0 and 15 pounds per square inch. Sec.-butyl alcohol containing a small amount of heavy polymer was removed as bottoms via the line 12 and distilled in a column to give 22 parts of substantially pure sec.-butyl alcohol of which approximately 10 parts was removed as product through a line and 12 parts returned as reflux to the column.
Patent GB-806146-A (GB)
Title: Improvements in or relating to l-glutamine synthesis
Filed: 1955-09-01
Abstract: L-glutamine is produced by preparing a solution of the gamma-amide of an N-carboallyloxy-L-glutamic acid (the term "allyloxy" denoting the unsubstituted or 2-alkyl or 2-phenyl-substituted allyloxy group), in a solvent mixture in which the L-glutamine is insoluble and in which hydrogen halide behaves as a weak electrolyte, the mixture comprising an aliphatic carboxylic acid having less than 8 carbon atoms in the molecule and a non-acidic organic solvent which is inert with respect to hydrogen halide and preferably to ammonia, reacting the solution under anhydrous conditions with hydrogen chloride or bromide, adding an alcohol to the reaction mixture in an amount sufficient to dissolve precipitated solids, neutralizing the reaction mixture and crystallizing L-glutamine therefrom.  The carboxylic acid may be formic, acetic, propionic or n- or isobutyric acid and the second solvent may be, for example, methyl, ethyl, propyl or n- or iso-butyl acetate, methyl or ethyl propionate, chloroform or dioxane.  The starting material, which may be used in the form of its ammonium salt, may be prepared from L-glutamic acid by the method given in Specification 789,328.  In a typical example, the gamma amide of N-carboallyloxy-L-glutamic acid and its NH4 salt, obtained as indicated above, is dissolved in a mixture of acetic acid and ethyl acetate; HBr gas is passed into the solution with cooling to 30 DEG C.; methanol is added to dissolve precipitated solids, the pH of the solution is adjusted to about 7.5 with diethylamine or ammonia and the solution is then cooled to crystallize out the resulting L-glutamine.  Specification 752,889 also is referred to.
Patent GB-472721-A (GB)
Title: Improvements in or relating to electric circuit interrupters
IPC: H01H33/14
Filed: 1936-09-15
Abstract: 472,721. High - tension switches. WESTINGHOUSE ELECTRIC & MANUFACTURING CO. Sept. 15, 1936, No. 25134. Convention date, Sept. 26, 1935. [Class 38 (v)] A circuit-breaker is provided with means for rapidly producing simultaneously a plurality of short arcs on opening the circuit, and means for subsequently effecting a further total separation of the contacts to provide a sufficient gap to insulate effectively the disconnected circuit from the source of supply. The circuit-breaker shown is mounted in an oil tank 1 having a cover 3 supporting a pair of insulators 7 carrying the conductors 15 and the stationary contact assemblages 11. The circuit is completed through a movable bridging contact 13 connected to an operating rod 67, each of the contact assemblages 11 comprises four pairs of separable contacts 23, 33, each pair being mounted in an arc-extinguishing device 31 comprising a stack of slotted plates of insulating material with interposed iron plates which cause the arc to move longitudinally within the passage formed by the aligned slots. The various elements of each of the . stationary contact assemblages are mounted between a pair of insulating plates 19. The contacts 23 of each pair of movable contacts are X-shaped, and are mounted on pivots 25 supported by the plates 19, each contact being urged towards the associated arc-extinguishing structure 31 by a pair of springs 27. The contacts 33 of each pair are T-shaped, and are mounted on pivots 39 supported by the plates 19, each contact having an upturned end 35 adapted to pass through the slot in the arc extinguishing structure 31 and engage the associated contact 23. The contacts 33 are mechanically interconnected by a tie-rod 41 of insulating material, which extends through an opening in each contact and is pivoted to the contact at 45 or 46. The pivot pin 46 of the lowermost contact 33 is connected to a pair of springs 47 which bias the tie-rod to the open position. The bridging contact-member 13 carries a pair of upstanding contacts 71 which engage contacts 73 at the lower ends of each of the tie-rods, and move the latter to the closed position when the contact-member 13 is raised. The various pairs of contacts 23, 33 are connected in series by flexible shunts 63, the lowermost contact 33 being connected by a similar shunt to the contact 73. When the bridging member 13 moves downwards on opening the circuit, the springs 47 cause the rods 41 to follow the movement, producing a plurality of short arcs between each pair of contacts 23, 33, the arcs being lengthened at a speed much greater than the speed of the rods owing to the leverage. When the contacts 33 have reached the limit of their movement, subsequent movement of the bridging member 13 separates the contacts 71, 73.
Patent GB-438988-A (GB)
Title: Improvements in medical glass syringes
IPC: A61M3/00
Filed: 1934-08-31
Abstract: 438,988. Surgical syringes. FECHER, H. M., 60, Empress Avenue, Wanstead, London. Aug. 31, 1934, No. 25172. [Class 81 (ii)] In glass surgical syringes, instead of a cork at the outer end of the barrel D, this end is fused and drawn inwardly as at E to surround the plunger rod C, and the rod C carries rubber or like washers B, H adjacent the usual stops A, J thereon, and a rubber sleeve G to prevent damage to the barrel.
Patent GB-242764-A (GB)
Title: Improvements in or relating to valve springs for internal combustion engines
IPC: F01L1/46
Filed: 1924-10-24
Abstract: 242,764. Marston, Ltd., J., and Greenwood, J. E. Oct. 24, 1924. Check lift valves. - A valve spring of the " mousetrap ' type has one limb 9 formed with a looped end 10 engaging under a washer 13 of the valve stem, and the other limb, comprising the two ends 5, 6 of the wire from which the spring is made, passed through holes in the valve guide 2 or other fixed part.
Patent GB-1481703-A (GB)
Title: Melting of minerals
IPC: C03B5/12
Filed: 1974-06-07
Abstract: 1481703 Shaft furnaces ROCKWOOL AB 7 June 1974 [18 June 1973] 25346/74 Heading F4B In producing mineral wool in a-shaft furnace by burning mineral solids with coke in the presence-of blast air supplied by tuyeres 15, the coke is coated with a substance which does not melt at temperatures below that of the combustion zone and rising flue gases are led away from the furnace at 22 to be mixed with further blast air to be self ignited. The substance is stated to minimize the production of carbonmonoxide by shielding the coke from the rising flue gases and any remaining carbon monoxide in the gases is burnt off outside the furnace. As shown the furnace comprises upper and lower shafts 11, 10 separated by a constricted part 12, the flue gases are led off by means of Venturis at 22, the self ignition takes place in an annular header 23 from which combustion gases can pass through tubes 25 to for instance a heat exchanger (not shown) and further Venturi offtakes 26 to an annular header 29 from which pipes 30 feed the gases to the upper shaft 11 for preheating the descending charge of coke and mineral solids.
Patent GB-1222346-A (GB)
Title: Improvements in or relating to books, book covers, folders or the like and hinge strips for use in book binding
Inventor: FOLEY NORMAN ARTHUR
IPC: B42D3/06
Filed: 1969-05-19
Abstract: 1,222,346. Book covers; filing folders. FOLEY PLASTICS MFG. CO. Ltd. 19 May, 1970 [19 May, 1969], No. 25413/69. Addition to 1,214,477. Headings B6A and B6E. A book or filing folder cover as described in the parent Specification 1,214,477 is modified in that each hinge portion is formed by a thick and rigid portion 16 bounded on each side by thin and flexible portions formed by respective pairs of grooves 8, 10 and 12, 14.
Patent GB-1432178-A (GB)
Title: Apparatus for locating a flange
IPC: B23K37/053
Filed: 1973-05-29
Abstract: 1432178 Welding by fusion MITSUI SHIPBUILDING & ENG CO Ltd 29 May 1973 [30 May 1972] 25425/73 Heading B3R In preparation for welding flanges 7 to a pipe 1, (i) upper and lower pipe gripping jaws 2, 2a are moved to radially inward positions, (ii) the flanges are caused to fall on to pins 5 of the lower jaws to be thereby positioned with their axes slightly lower than that of a notional pipe, (iii) centres 6, with outer cone diameters larger than bores of the flanges, are axially inwardly advanced pneumatically to press the flanges against the jaws and align the flanges with said notional pipe axis, (iv) electromagnets 8 are axially inwardly advanced to attract the flanges thereto, (v) the electromagnets, together with the centres 6 and the attracted flanges, are withdrawn, (vi) the upper jaws are withdrawn and the lower jaws are moved to their pipe supporting positions, (vii) the pipe is placed on the lower jaws and gripped by lowering of the upper jaws, and (viii) the electromagnets are advanced with the flanges to abut the latter against, and in alignment with, the pipe. After welding, all the jaws are withdrawn and the flanged pipe is allowed to fall to a further operational position. The jaws are moved by feed screws 4 driven by stepping motors 3.
Patent GB-313817-A (GB)
Title: Improvements in heated drum apparatus for desiccating liquids and semi-liquids
IPC: B01D1/22
Filed: 1928-09-05
Abstract: 313,817. Haddan, R., (Heyl-Beringer Farbenfabriken Akt.-Ges.). Sept. 5, 1928. Film evaporators.-In a desiccator of the internally heated drum type, a feed roller 8 supplies liquid to a contact roller 7 which transfers it to a drum 2. The rollers 7, 8 are fitted by stuffing boxes 17 in a liquid container 9 pivoted about bolts 10, so that the pressure of the roller 7 on the drum 2 can be varied. The roller 8 is made longer than the roller 7 to assist in the removal of excess liquid from the latter. Definite and reproducible drying conditions are obtained by use of a steam pressure regulating valve 23 and a change speed gear 19 in the drive to the drum. Scraping knives 13 are arranged in overlapping formation to avoid leaving ridges of dried material on the drum.
Patent GB-1111223-A (GB)
Title: Paint compositions and products coated therewith
IPC: C09D7/42
Filed: 1965-06-16
Abstract: Flat paint consists of a dispersion at a particle volume concentration of 20-75%, of non-coalescing elastomeric particles (which may contain up to 40% by wt. of pigment) of 3-150 microns in size, in an elastomeric-film-forming vehicle phase, at least 5% of which is non-volatile elastomer film-forming organic material. The vehicle phase is made up of volatile liquid solvent or dispersant and of non-volatile material.  60-100% by weight of the non-volatile material of the vehicle phase is elastomer film-forming material, the remaining 0-40% being pigment.  The total volume of any dispersed pigment in the vehicle phase and the entire volume of all other particles in the paint equal to or greater than 3 microns in size accounts for no more than 85% of the total volume of non-volatile material in the paint.  Thickeners or plasticizers may be added to the paint, as we.l as small quantities of rigid particles above 3 microns in size, e.g. glass or metal beads.  Elastomeric particles used in the examples are of polyurethane, e.g. water-cured dispersed droplets of a waxy-solid isocyanate-terminated polyester prepolymer with chrome oxide and phthalocyanine green pigments; or ground particles of polyurethane formed by curing an isocyanate - terminated polyester prepolymer with 1,4-butanediol, and containing, if desired, carbon black.  Vehicle phases used in the examples are a dispersion in xylol and Cellosolve acetate of a waxy-solid 4,41-diphenylmethane di-isocyanate terminated polyester prepolymer and 1,4-butanediol; an aqueous dispersion of a copolymer of 60% methyl and 40% ethyl acrylate; a plastisol of finely-divided polyvinyl chloride in dioctyl phthalate and naphtha.  Example 5 uses a dispersion in cyclohexanone of elastomeric polyurethane from polyester and diphenyl diisocyanate, with aliphatic glycol as a curing agent.
Patent GB-254251-A (GB)
Title: Improvements in and relating to wheel rims and pneumatic tyres for motor vehicles
IPC: B60B21/02
Filed: 1925-10-13
Abstract: 254,251. Michelin et Cie. June 27, 1925, [Convention date]. Tyre attachments to rims.-A rim for a wiredon pneumatic tyre is formed with shallow concave seats f, g for the tyre edges, the profile of the rim in cross-section being such that the tyre when fully inflated and unloaded may assume a circular section and be in contact with the rim adjacent the tyre edges only. The extended .edges h of the rim are of convex form and shaped so as not to deform the tyre when under load. The radial depth of the tyre-supporting parts of the rim is stated to be approximately one-tenth the width of the rim measured between its extreme points of contact with the tyre when under load. Specification 222,768 is referred to.
Patent GB-186342-A (GB)
Title: Improvements in display rack
IPC: A47F5/025
Filed: 1922-09-21
Abstract: 186,342. Perry, J. M. Sept. 21, 1921, [Convention date]. Rotary apparatus.-A display rack for mer chandise &e. comprises a motor located in a housing 2 and having a stem 4 projecting therefrom, adapted to receive detachably a standard 6 provided with a head consisting of two plates 8, 14, fixed together and to the standard, each plate having a movable plate 11, 16 respectively, cooperating therewith to form four clamps A, disposed at right angles to each other and adapted to hold horizontal rods 20 tangentially to the circle for rotation of the clamps, each rod being provided with a T.connection 21 to hold a vertical rod 23, one or more of these rods 23 each having a similar connection 24 to hold an additional horizontal rod 25 which may be similarly adapted to receive a vertical rod 27. The Specification as open to inspection under Sect. 91 (3) (a) refers to a modification in which the stem 4 receives the downward extending spindle of a horizontal platform. This subjectmatter does not appear in the Specification as accepted.
Patent GB-199645-A (GB)
Title: Improvements in cooking apparatus
IPC: F24C15/16
Filed: 1922-09-21
Abstract: 199,645. Creighton, C. Sept. 21, 1922. Grilling-apparatus; frames for supporting viands while cooking.-A fcod support for use in an oven or above a fire comprises a rotatable platform 1 with peripheral projections 7 which facilitate turning, and a centre pin 2 engaging a sleeve 3 supported from a base 6 by radial arms 5. For grilling, a grid-like platform is used and by placing a second grilling-platform on the food, inverting, and removing the original platform, the food is inverted.