baber/WOPTO huggingface dataset:
Patent GB-1025199-A (GB)
Title: Improvements in or relating to xerographic transfer platen
IPC: G03G15/18
Filed: 1963-01-14
Abstract: 1,025,199. Electrophotographic processes. RANK-XEROX Ltd. Jan. 14,1963 [Jan.12, 1962], No. 1524/63. Heading G2H. In a charge transfer process, charge receptive half-tone dots are formed over the surface of the charge receiving sheet 14, in proximity to the tips of elongated conductors 16, by contacting the other ends of the conductors with conductive roller 17 which is connected to a voltage source 51. A continuous tone electrostatic latent image, produced by conventional xerographic methods on photo-conductive layer 13, is accordingly transferred as a half-tone image to sheet 14, developed by cascade at 46 and the developed image transferred under corona discharge at 47. A conductive wiper means at 48 prepares sheet 14 for re-use. Suitable dielectric materials for sheet 14 include cellulose acetate, polystyrene, polytetrafluoroethylene and polyethylene terephthalate. Conductors 16 may be fine wires or ferromagnetic, ferrous or ferrite particles. The latter may be incorporated in a molten layer of dielectric material which is allowed to set under the influence of a transverse particle orienting magnetic field. One side of the layer may be abraded to improve the electrical contact with roller 17 or an alternative contact means. In another form, a sheet of dielectric is pierced with many fine holes, by means of a spark discharge, the holes filled with electrolyte and a film of dielectric applied to one side of the sheet. Reference is made to the use of an A.C. or D.C. corona discharge device in place of conductive roller 17.
Patent GB-157805-A (GB)
Title: Improvements in platen presses
IPC: B41F1/00
Filed: 1921-01-10
Abstract: 157,805. Rockstroh, W. M. July 25, 1916, [Convention date]. Platen machines.-In a rectilinearly reciprocating platen provided with sheet feeding mechanism the latter comprises a gripper drum consisting of rings mounted on circular guides at the sides of the platen and connected by bars carrying the grippers. A platen 5, Fig. 3, is reciprocated to and from a forme 1 by a crank 22 and rod 23, and is rectilinearly guided by bars 4, secured to the platen, engaging fixed bearings 2, 3. Grippers are mounted on rings connected together by bars 12 to form a drum 11 rotatable on circular flanges 10 of the platen. Each gripper comprises a jaw 13 fixed to the bar 12 and a coacting jaw 19 operated by a pivoted arm 16 carrying a roller 17 adapted, when the platen moves to the right, to engage a weighted lever 27, pivoted to the machine frame, whereby the gripper is opened and receives a sheet from the front stops 21 of a table 20. On the reversal of the platen the lever 27 having returned to its normal position the roller 17 engages an incline 25 so that the gripper is closed, the end of the lever being rotatable on a butt hinge to allow the gripper to pass. The gripper drum 11 at the same time is carried round by an arm 31, Fig. 5, pivoted on the platen shaft 24 and oscillated by a sector 34 on the arm engaging a pivoted sector 33 carrying a roller 41 sliding in a cam groove in a fixed plate 32, a wedge 35, spring-mounted within the arm 31, engaging a wedge-shaped recess 38 in the drum 11 for that purpose. Any adjustment of the platen to vary the impression is compensated for by this arrangement, and, to ensure a constant feed, the wedge 35 is drawn entirely into the recess 38 during the feed by a hook 39, eccentrically mounted on the pivot of the arm 31, engaging over a pin 40 fixed to the wedge, a stop 44 releasing the hook just before the feed is completed. The wedge 35 is withdrawn by a slide 45, fixed to the platen, operated by stops 46, 47 at each reversal of the platen. The slide 45 also serves to lock the ring 11 when it is not being oscillated, thus preventing shifting of register. The sheet is released and deposited on the table 49, Fig. 3, by the roller 17 on the gripper engaging an incline 48.
Patent GB-554573-A (GB)
Title: Improvements in or relating to emulsifying plant
IPC: B01F3/08
Filed: 1942-02-05
Abstract: 554,573. Emulsifying apparatus. ALFALAVAI. CO., Ltd., and HOLLISTER, A. H. Feb. 5, 1942, No. 1542. [Class 1 (i)] Emulsifying plant comprising means 2 for circulating a liquid mixture from a tank 1 through an emulsifying valve 4 is provided with a bypass valve 3 connected in parallel with the emulsifying valve, through which the mixture is circulated during the first stage of the mixing process. Specification 553,644 is referred to
Patent GB-590080-A (GB)
Title: Improvements in or relating to tubular steam-generators
IPC: F22B29/02
Filed: 1945-01-19
Abstract: 590,080. Tubular heat-exchange elements for boilers &c. LA MONT STEAM GENERATOR, Ltd., and BAUER, F. W. Jan. 19, 1945, Nos. 1608 and 3852. [Classes 64 (iii) and 123 (ii)] In a heat exchanger, for example, a steam or hot-water boiler of the forced circulation type, comprising a lower distributor header 1 and an upper collector header or drum 3, Fig. 4, connected by tubular elements, each element consists of a tube bent to form U-shaped convolutions with parallel limbs A, a, arranged in staggered relationship in two parallel vertical planes, and semi-circular bends A', a', each connecting a limb in one plane with a limb in the other plane, and the elements are nested together substantially as shown in Fig. 3.
Patent GB-451088-A (GB)
Title: Improvements in or relating to electro-plating or electro-deposition processes
IPC: C25D7/04
Filed: 1936-01-17
Abstract: 451,088. Electroplating. FESCOL, Ltd., and WILSON, R. E., 101, Grosvenor Road, Westminster. Jan. 17, 1936, No. 1612. [Class 41] The interior of a hollow article is plated uniformly by the use of an anode so formed and arranged that the spacing from the article is a minimum at the part remote from the open end or ends at which the plating would normally be thinnest. In plating a tube the anode may be an ellipsoid with its part of greatest diameter midway between the open ends. In plating a cylinder closed at one end a frustoellipsoidal anode is employed. The anode may consist of a wire A coiled to form a surface of suitable shape, that shown being suitable for plating a closed tapering vessel B.
Patent GB-246994-A (GB)
Title: Improvements in or relating to governors for water turbines
IPC: F03B15/10
Filed: 1925-01-19
Abstract: 246,994. Oakes, G. C. Jan. 19, 1925. Centrifugal governors; fluid relays.-A water turbine is governed by admitting air to its suction pipe. Centrifugal weights a move sleeves a<5> against the action of adjustable springs, to admit air through ports as to the hollow shaft B<1> to destroy the vacuum under the diaphragm c. the rod F actuating valves admitting air to the suction pipe. The source of vacuum through the tube c' may be the turbine suction pipe. The governor may be mounted directly on the turbine shaft, which is hollow and has ports communicating with the suction pipe.
Patent GB-284664-A (GB)
Title: Improvements in or relating to long distance telephone cables
IPC: H04B3/26
Filed: 1928-01-18
Abstract: 284,664. Siemens & Halske Akt.- Ges. Feb. 3, 1927, [Convention date]. Drawings to Specification. Loading or otherwise modifying circuits to improve transmission. -- A loaded long distance cable contains star-cabled quads and quads cabled on the Dieselhorst-Martin method and the physical and phantom circuits of both kinds of quads are loaded. The phantom circuits of the former cabling are preferably heavily loaded and those of the latter cabling lightly loaded. The Specification indicates how by utilizing the differing transmission distances obtainable with the phantom and physical circuits and with the two methods of cabling, a composite cable to meet load conditions for various distances may be designed.
Patent GB-792978-A (GB)
Title: Improvements in or relating to streptomycin salts
Inventor: BUCKWALTER FRANK HAROLD
Filed: 1956-01-18
Abstract: The invention relates to a salt of streptomycin and a phosphorylated inositol, especially one containing three molecules of streptomycin per molecule of phytic acid.  The salt may be hydrated or anhydrous. Where free acid groups are available for further salt formation, non-toxic metal ions such as sodium, potassium, ammonium, calcium and magnesium may be present.  The phytic acid (inositol hexaphosphoric acid) may be replaced by other inositol phosphoric acids such as the tri- and tetraphosphoric acid.  It is preferred to react a water-soluble phytate, e.g. sodium phytate, with a water-soluble salt of streptomycin, e.g. streptomycin sulphate, in aqueous solution at a pH of 7 to 8, preferably after a preliminary treatment with carbon. Streptomycin phytate is therapeutically active, non-toxic and relatively insoluble in water.  It is used medicinally (see Group VI) and in the recovery of streptomycin from aqueous solution.ALSO:A therapeutic preparation in the form of a powder, tablet, capsule or aqueous or oily suspension for oral or parenteral use, comprises a salt of streptomycin and a phosphorylated inositol, e.g. streptomycin phytate (see Group IV (b)) with or without the addition of other medicaments.  An edible oil such as coconut oil or an injectable oil such as peanut oil, as such or gelled with aluminium monostearate, forms the vehicle for the oily suspensions.  Optional ingredients are (a) suspending agents such as sodium carboxymethyl cellulose, methyl cellulose, polyvinyl alcohol, polyvinyl pyrrolidone, gum tragacanth, gelatine, pectin, alginates, dextrans, gum karaya, lecithin, polyoxyalkylene derivatives, glyceryl monostearate, inositol phosphoric acids and their non-toxic salts; (b) buffers such as sodium citrate or sodium phosphate; (c) preservatives, e.g. phenol, cresol, alkyl esters of p-hydroxy benzoic acid; (d) other pharmaceutical adjuvants.  The particle size of the streptomycin phylate may be varied.  Specified other medicaments are anti-histamines, sulpha drugs, vitamins, lipotropic agents, stimulants, analgesics, laxatives, sedatives and antibiotics such as potassium benzyl penicillin.  The streptomycin phylate particles may be coated with a suspending agent such as lecithin.
Patent GB-578129-A (GB)
Title: Improvements in or relating to electric pulse generators
IPC: H03K3/06
Filed: 1944-01-31
Abstract: 578,129. Impulse generators. CUTTS, F. W. Jan. 31, 1944, No. 1812. [Class 40 (v)] [Also in Group XXXV] A pulse generator comprises a capacitive storage device charged through a high impedance and a hard valve switching device which, at intervals, discharges the storage device through a low resistance across which the pulses are developed, the switching device being operated independently of the charge in the storage device. The latter preferably comprises a condenser. As shown in Fig. 1, a condenser 10 is charged through a high resistance 9 in the anode of a valve 8 when the latter is non-conducting and discharged through a low resistance 11 when the valve is conducting. The valve forms one of a pair 7, 8, connected together in a multivibrator circuit: The current and voltage wave forms are shown in Fig. 2. The pulse time may be controlled by connecting resistance 9 to an adjustable tapping on a potentiometer connected across the hightension supply, and by switching condensers 10 of different capacity, whilst to obtain a more rapid discharge of the condenser a diode may be connected between the anode of the valve and a tapping on the potentiometer across the supply, so as to conduct when the anode voltage falls. When the valve 7 is arranged to be triggered by a sawtooth wave, the pulse time may be limited by using a pentode for valve 8 having its screen and suppressor grids coupled by a condenser 22, Fig. 5, so that the increasing screen current during fall of anode potential drives the suppressor negative and rapidly cuts off anode current. Fig. 6 shows a circuit in which condenser 10 is charged and discharged by a single valve 23 connected in a transitron circuit. In a further arrangement, switching is effected by a sawtooth wave applied to the control grid of a single valve circuit comprising a pentode connected as in Fig. 5. Specification 403,832 is referred to.
Patent GB-1171742-A (GB)
Title: Compositions for and Method of Selectively Dissolving Nickel from other Metals
IPC: C23F1/44
Filed: 1968-01-12
Abstract: 1,171,742. Chemically stripping nickel. MACDERMID Inc. Jan. 12, 1968 [June 30, 1967], No. 1857/68. Heading C7D. An aqueous solution for dissolving a nickel deposit with or without copper from a substrate which may be copper or copper clad, has a pH of 8-11 and consists of  (a) a water-soluble sodium, potassium, ammonium or lithium poly-phosphate or mixture thereof; (b) an organic oxidizing agent consisting of either a compound having at least one nitro group attached to a benzene ring which ring also carries a watersolubilizing radical, or a water-soluble nitrosubstituted aliphatic compound having 1-3 carbon atoms in the chain; (c) a base of ammonia (e. NH 4 OH), or ethylenediamine; and (d) a sodium, potassium, ammonium or lithium thiosulphate or mixture thereof. Components (a), (b) and (d) are present in amounts up to their limiting solubilities. Components (a) and (b) are preferably present in stoichiometric amounts. Specified poly-phosphates are sodium acid pyrophosphate, tetrasodium pyrophosphate, ammonium-sodium pyrophosphate, sodium hexametaphosphate and sodium tripolyphosphate. Specified organic oxidizing agents are sodium nitrobenzene sulphonate, nitrobenzoic acid and nitrobenzoates, nitrophenol, nitroaniline, sodium nitrophthalate, nitromethane, nitroethane and nitropropane.
Patent GB-716987-A (GB)
Title: Improvements in or relating to electric insulators
IPC: H01B17/02
Filed: 1952-01-23
Abstract: 716,987. Insulators. COMPAGNIE GENERALE D'ELECTRO-CERAMIQUE. Jan. 23, 1952, [Jan. 23, 1951; May 30, 1951.] No. 1900/52. Addition to 676,329. Drawings to Specification. Class 36. An insulator according to the parent Specification comprises separately fired ceramic elements which are joined together by an organo-synthetic type adhesive such as a phenol gum or a polyaryl ethylene oxide resin. At least one of the ceramic elements may be.connected to a metallic element by means of the adhesive. The metallic element may be in the form of.a cylinder, the wall of which is thin enough to have elasticity and which may be longitudinally slotted.
Patent GB-468144-A (GB)
Title: Improvements in or relating to envelopes and the like
IPC: B65D27/16
Filed: 1936-01-21
Abstract: 468,144. Envelopes. ELLENS, W. E., and DICKINSON & CO., Ltd., J. Jan. 21, 1936, No. 1934. [Class 146 (ii)] In an envelope adapted for sealing by the use of a self-adhesive material, the closure flap a<1> consists of an extended portion on one side of the mouth and carries a stripe a<11> of rubber latex adapted to be covered by folding the flap on itself, and the other coacting stripe of latex is on the opposite inside face of the mouth. During packing &c., the folded closure flap is folded inside the mouth of the envelope. When the envelope is to be used, the two stripes of latex are exposed to each other by pressing downwardly the folded portion of the flap as by inserting an enclosure into the envelope. The envelope shown is for cheap-rate postal transmission, and consists of a front portion a having an extension forming the closure flap, a narrow side flap c, a wider side flap d, and a bottom flap b which forms the back of the envelope and carries one of the stripes of latex on its inner upper surface. The flap d is not gummed to the flap b, so that it can be readily withdrawn to allow inspection of the contents of the envelope.
Patent GB-269112-A (GB)
Title: Improvements in window operating apparatus
IPC: E05F11/38
Filed: 1927-01-22
Abstract: 269,112. SerstÚ, J. E. Jan. 22, 1927. Sliding-window opening and closing apparatus. -A sliding sash such as a vehicle window is operated by means of one or two toggles 11, 17, which are guided so as to move the window over the fence rail when fully raised by means of cam slots 21 in members 22 pivoted to the sash at 24 and guided between fixed sill members 40 when the window is in the raised position. The upper arms 17 of the toggles are pivoted in U-shaped lugs or brackets 19 on the bottom of the sash and the pivots 24 of the slotted members are mounted in the same brackets. The lower arms 11 of the toggles are hand-actuated through the spindle 8, gears 15, 13, and two engaging gears 12 on squared spindles carrying the levers, the gears being mounted in a casing 7 riveted to the inner lining of the door. The handle spindle 8 may be carried on an arm pivoted about the spindle 9, the end of the arm being fixed at any convenient point about that spindle as centre. A chain or the like and reduction gearing are used to transmit the movement to the gears 12. The levers 11 may be bent to economize space and one may be mounted on a sleeve rotating on the spindle of the first, an intermediate gear being used so that the levers are driven in reverse directions at equal rates. A brake may be used to lock the sash in any position.
Patent GB-263318-A (GB)
Title: Improvements in tools for refacing valves and for like purposes
IPC: B23C3/05
Filed: 1926-01-23
Abstract: 263,318. Malia, A. Jan. 23, 1926. Portable turning- apparatus ; tools ; chucks. - In a device for refacing valves and like purposes the valve-stem x is mounted by means of split bushes d, d<1>, Fig. 2, in a sleeve b rotatable in a pedestal a which may be secured to a bench &c. Two sets of bushes are provided for use with valves of different sizes. End play of the sleeve is eliminated by a nut c and end play of the stem by a nut f screwing against a crank e, clamped to the stem by a screw e<1> and by which the valve is rotated relatively to the stationary cutter h, Fig. 1. The action of the nut on the crank also serves to secure the stem within the sleeve by forcing the tapered bush d<1> into a conical seat in the sleeve. The cutter, which has a depending portion for operating on small valves, is mounted in the holder described in Specification 234,400, a spindle g screwed into the pedestal replacing the spindle 16 of the prior Specification and the sleeve i having a plain end so that it clamps the cutter without adjusting it. A screw a<3> adjustable in a lug a' on the pedestal serves as an abutment .for the cutter to prevent its rotation about the spindle g during operation, and also to allow the cutter to be released for hand adjustment when the holder is rotated by means of the handle j. Feed is imparted to the cutter by a knurled nut k, and the cutter has edges h', h<2> for operating on valves of different cone angles and an edge h<3> for operating on the periphery of the valve. A gauge is provided Which is laid against the end of the sleeve b and has two inclined surfaces for testing the accuracy of the edges h<1>, h<2>.
Patent GB-1075733-A (GB)
Title: Improvements in or relating to duplicating machines
IPC: B41L11/08
Filed: 1966-01-17
Abstract: 1,075,733. Copying documents. M. E. WATSON, and H. EGERER. Jan. 17, 1966 [Feb. 8, 1965], No. 2054/66. Heading B6C. [Also in Division D1] A web 22 unrolled from a roll (21, Fig. 7) is printed on by a mirror-script master sheet 34 secured to a segment 67 of a printing-roller 33 of greater diameter than the rest of the roller, being fed frictionally during printing by the segment pressing it against a resiliently mounted impression roller 36 and being stationary between printing steps. The printing roller is rotated by a handle (37, Fig. 1), reverse rotation of which is prevented by a member (107, Fig. 3). Rotation of the handle also causes a locking pin (159, Fig. 12) to move out of a perforation (23, Fig. 14) in the web when the web is to be moved, and acts on a linkage system (38) to control a damping-device (39) for the web. The damping-device (Figs. 10, 11) comprises a holder (127) pivoted to links (117, 119), a tank (120) for liquid, supplied thereto by a pump (166) through a tube (167), pivoted to the holder, and a wick (129) in the tank with a lip (146) to contact a roller (131). In the normal position (Fig. 7), the roller is spaced from the web and from the wick. Rotation of the handle causes the parts to move to the position of Fig. 9 during printing, the wick contacting the roller, which moistens the web. If the machine is idle so that the web between the roller, Fig. 9, and the printing position has dried, the link (117) is moved manually to the position of Fig. 8, re-moistening that part of the web.
Patent GB-688585-A (GB)
Title: Improvements in tubulous vapour generators
IPC: F22B21/34
Filed: 1951-01-26
Abstract: 688,585. Water-tube steam boilers, etc.; superheaters. BABCOCK & WILCOX. Ltd. Jan. 26, 1951 [Jan. 30, 1950], No. 2082/51. Classes 123 (ii) and 123 (iii) In a steam, &c. boiler, a radiant superheater, &c. 10 is disposed in the furnace chamber 1 near its outlet 100 to a mixing chamber 17 followed by a down-pass locating a convection superheater 15 and feedwater heater &c. 19, 20, 21, 22, said superheater 10 being constituted by inverted U-shaped tubes which are arranged in a number of spaced vertical panels and define a passage for the flame core. At the front end of the panels the tubes of alternate panels are connected to saturated steam inlet headers 9, the tubes of the remaining panels being connected to superheated steam collecting headers 12, and at their rear ends the tubes of adjacent pairs of panels are respectively connected to intermediate headers 11. The intermediate parts of the tubes 10 parallel to the roof of the furnace chamber may be brought into alignment to form a lining for said roof. In a modification the panels 10, of substantially straight vertical tubes, are disposed in a recess in the wall of the furnace chamber opposite the outlet 100.
Patent GB-538204-A (GB)
Title: Improvements in or relating to apparatus for assembling blanks for folding cases
IPC: B27M3/36
Filed: 1940-02-02
Abstract: 538,204 Making boxes having metal binding strips. NO-NAIL CASES PROPRIETARY, Ltd., and KAMPER A. M. Feb. 2, 1940, No. 2098. [Class 18] A folding case made from separate plywood &c. panels or from a continuous cardboard &c. blank, has the panels connected by metal binding and hinging strips 20, Fig. 3, wire-stapled at 21 by known wire-stapling devices indicated at 59, 66, 70, Fig. 5, and actuated by triggering members 113 on rubber belts 38, 39 which engage electrical contactors 117 that control solenoids 91 which control the engagement of clutch members 84. The blanks are moved forwards by pushers 109 and the metal strips by driving pegs 52. The conveyer is driven by a coupling adapted to slip momentarily when the blank is stationary.
Patent GB-353850-A (GB)
Title: Devices for sizing warp yarns of artificial silk and like textile fibres directly on the loom
IPC: D03J1/00
Filed: 1930-01-23
Abstract: 353,850. Treating warps in looms. CHIRAT, J. J. M., 60, Rue Tramassac, Lyons, France. Jan. 23, 1930, No. 2361. Convention date, March 21, 1929. Void [Published under Sect. 91 of the Acts]. [Class 142 (ii).] In apparatus for sizing yarns of artificial silk and other textile fibres directly on the loom, the warp d in its passage from the beam a passes through a sizing trough f, over guide rollers g, h, i, j, m, and thence to the loom proper, the roller being braked by a weighted cord p to prevent the tension imparted to the threads during weaving from being transmitted to the wet portion of the warp. A similar braking device may also be applied to the warp beam. The drying action may be assisted by the provision of a fan k adapted to be driven from the low shaft l of the loom.