baber/WOPTO huggingface dataset:
Patent GB-354008-A (GB)
Title: Improvements relating to apparatus for treating artiflcial silk with liquids
IPC: D01D10/04
Filed: 1930-06-19
Abstract: A frame for use in the liquid treatment of artificial silk wound on perforated bobbins comprises a pair of members with rods extending between them on which rods the bobbins are arranged end to end to form hollow columns.  The frame members are capable of clamping the bobbins between them in a liquid tight manner, and liquid is supplied to the interior of the bobbins through perforations in one of the members.  The rods may be removable and the frame members may be made slidable towards or away from each other.  As shown in Fig. 1, the frame 1 is a four-sided structure and one of its end members 2 is movable in guides 3 but is secured in its adjusted position by wedges 4.  The rods for holding the bobbins are of cruciform or star-shaped or other fluted cross section and of such size that the bobbins 6 can be mounted on them without lateral movement.  Each rod 7 is provided with a peg 8 entering a socket in the movable end member 2, and at the other end it is reduced in diameter to fit somewhat loosely in holes 9 extending through the other end member 21.  Rubber washers 10 are placed between adjacent bobbins, and rubber washers 11 <PICT:0354008/IV/1> <PICT:0354008/IV/2> are placed between the bobbins at both ends of the rods and the two end members of the frame.  When the bobbins have been assembled in the frame, it is fitted to a washing machine.  The apparatus shown in Fig. 5 comprises a header 12 surmounted by a clamping device of such size as to enable several bobbin frames to be clamped in an upright position on to the header.  The clamping device consists of a beam 13 pivoted to the top of an upright 14 at one end and connected at the other end by toggle levers 15 to an upright 16.  A row of openings 17 for the supply of liquid is provided for each frame 1, and in each row an opening is provided for each column of bobbins.  Liquid is forced into the flutings of the rods 7 and through the bobbins 6 and the artificial silk wound thereon.  In another form of washing machine, the frames 1 are arranged in a horizontal position, and the bobbins are sprayed with treating liquid in addition to being treated radially.  The frames may be transfered from one washing apparatus to another for treatment with different liquids.  The bobbins may be dried while still supported in the frames.
Patent GB-1110253-A (GB)
Title: Dense spherical particles
IPC: B01J2/08
Filed: 1965-05-04
Abstract: Actinide metal oxide microspheres are made by passing a sol of the oxide into a concurrently uniformly flowing stream of liquid medium in which the liquid of the sol has low solubility so as to form a dispersion of the sol in the liquid medium, passing this dispersion into a mass of the liquid medium and allowing the dispersed droplets to settle and solidify.  "Low solubility" is defined in the Specification.  The sol can be an aquasol of urania, thoria or plutonia and these can be in combination with other oxides and/or carbon.  The sol can be formed into the dispersion by passing it down an injection tube of 0.15-0.60 mm. internal diameter which terminates before the outlet of a coaxial outer tube which has an internal diameter at least 1 mm. greater than the external diameter of the injection tube, e.g. 1-5 mm. The rate of flow of sol can be controlled by a valve and by air pressure acting on the sol reservoir.  The stream of liquid medium can be at a lower temp. than that of the mass of the liquid medium.  The mass of liquid medium can be at a temp. between its b.p. and 50 DEG  C. below its b.p.  The mass of liquid medium can flow countercurrently to the settling dropets, see Figs. 1 and 2 (not shown).  The liquid medium can be hexanol.  The process results in a relatively uniform size of microspheres, e.g. 69-539 m . The effect of the water in the hexanol and of flow of the hexanol on the droplet size is shown in Figs. 3 and 4 (not shown).  The microspheres can be used as a nuclear fuel.
Patent GB-596376-A (GB)
Title: Frequency changing signal generating system
IPC: H04L27/12
Filed: 1944-10-03
Abstract: 596,376. Frequency modulation. STANDARD TELEPHONES & CABLES, Ltd. Oct. 3, 1944, No. 18897. Convention date, Oct. 21, 1943. [Class 40 (v)] The output of a stabilized oscillator is applied to a frequency changer including a reactance tube modulator to the input of which a a saw-tooth voltage having a return period of relatively negligible duration is applied. A substantially continuous phase shift is thereby applied to the frequency changer input so that its output is held at a fixed frequency different from that of the oscillator. As applied to a C.W. telegraph system wherein different transmission frequencies are used for marking and spacing, the spacing signals are derived from a stabilized oscillator D and transmitted at the normal frequency thereof after amplification at E. Marking signals from a source A actuate a saw-tooth generator B arranged to feed a modulator C to adjust the frequency of the wave received from the oscillator D to the other predetermined value which is then amplified at E and transmitted at F. The saw-tooth generator B comprises a normally blocked thyratron 10, adapted to be operated by a key 11 or by the output of a standard C.W. generator and keyer system 8 after rectification at 9. The saw-tooth generating circuit 14 is of known type and arranged to produce a substantially uniform rate of voltage increase of each wave to the point of discharge which is of inconsiderable duration. The saw-tooth voltage is applied to the grid of a reactance tube 17 connected to an amplifying tube 18 fed from the crystal controlled oscillator D. The output of tube 18 is connected to the grid of tube 17 over a feed-back path 20 producing the necessary 90 degrees phase-shift. The continuous uniform voltage increase applied to the grid of reactance tube 17, during the reception of the main portion of each saw-tooth wave, produces a corresponding uniform and continuous phase-shift in the amplified waves from oscillator D in the output of tube 18, so that an output of a different frequency is supplied to amplifier E during marking. The very high-frequency shift produced momentarily during the abrupt voltage drop at the end of each saw-tooth wave is filtered out in the amplifier E. The saw-tooth generator is arranged with such a discharge frequency as to produce a plurality of saw-tooth waves during the transmission of each marking signal element to ensure uniformity of operation.
Patent GB-696426-A (GB)
Title: Improvements in or relating to manifolding appliances
Inventor: PEAK LESLIE
IPC: B41L3/00
Filed: 1950-07-28
Abstract: 696,426. Manifolding devices; writing cases; filing paper; book-keeping. TAYLORIX, Ltd. July 27, 1951. [July 28, 1950] No. 18900/50. Classes 16, 146 (i) and 146 (iii). A manifolding device for book-keeping and other purposes comprises a plate 1 which supports sheets registered and gripped by a device 2 for manifolding. The device consists of a hollow bar 3 attached to the plate 1 by brackets 4 so as to permit the insertion of the sheet margins beneath the bar 3, such margins being gripped by pins 5 and 6 attached to two bars 7 and 8 and slidably mounted in the bar 3, the pins being urged downwardly by springs 7a. The pins may be raised by pivoted levers 9 and 10 pivotally attached to links 12. A further gripping device 14 is urged towards the plate 1 by a spring and is retractable by a lever 16, the device 14 serving to grip the margin or margins of a sheet or sheets. The brackets 4 facilitate the correct placing of sheets on the plate 1. The sheets are formed, so that the top sheet can be released without disturbing the sheets held by the pins 5 and gripper 14. Similarly, the sheet held by the pins 5 can be released without disturbing that held by the gripper 14. A tray-lid 17 comprising a bottom wall 18 and side walls 19, is readily attached to the plate 1 by a flange 22 and fastening 23, such that a portable box is formed. The tray-lid may be used as a tray when detached, spring clips 24 being provided to hold papers in the bottom of the tray. One or more pockets 25 for storing sheets or forms closed by hinged plates 34 is or are hinged to a flange 20 of the tray-lid 17, such that when the lid is attached to the plate, each pocket is urged into contact with the wall 18 by an overcentre device 30, while when the tray-lid is detached, each pocket may be moved to and held in a position substantially at right angles to the wall 18 which position facilitates access to the interior of the tray-lid. A space 33, between the pocket 25 and wall 18 provides storage for sheets held by the adjacent side of the pocket 25.
Patent GB-1223373-A (GB)
Title: Improvements in or relating to filter press plates
IPC: B01D25/176
Filed: 1969-04-14
Abstract: 1,223,373. Filter press plate. HANSENSGUMMI & PACKUNGS WERKE, K.G. PAUL and J. HANSEN. 14 April, 1969 [2 May, 1968], No. 18956/69. Heading B1D. A filter press plate comprises a central sheet 3 fluted at 3a to drain filtrate from behind overlying filter cloth 6, and clamped between respective halves 1, 2 of a peripheral frame, which are connected by bolts (4) passing through sheet 3 (Figs. 1, 3, not shown). Filter cloth 6 is secured by threaded annular stud 7, which define aligned slurry inlet passages in different plates, and by pegs driven into the periphery of the frame (Fig. 4, not shown). Stud 7 may penetrate the frame, as shown, or a thickened part of sheet 3. Sheet 3 may be rubber or plastics and is reinforced by embedded resilient sheet 5, of natural or synthetic fibre fabric, steel wire gauze, sheet steel or plastics. Beads (3b) on each side of sheet 3 fit into grooves in the frame halves (Fig. 4), so that outward forces on the sides of the frame, when the press is pressurised, are resisted by tensioning of the sheet 3. Sheet 3 may be replaced when damaged.
Patent GB-151139-A (GB)
Title: Improvements in the manufacture of tiles of linoleum or the like and in apparatus therefor
IPC: D06N7/00
Filed: 1919-07-31
Abstract: 151,139. Linoleum Manufacturing Co., and Godfrey, A. A. July 31, 1919. Processes; pattern plates.-Relates to the manufacture of linoleum or like tiles of two or more colours. Material of one colour, say white, is placed on the table 16, Fig. 6, which is raised, forcing the material into a mould 2, Fig. 1, having two sets of plungers 3, 3<A> one set in advance of the other. When the mouid is charged it passes to a position over a plate 31, Fig. 9, which has an intermittent reciprocating motion, and the plungers moving downwards extrude a portion, say the centre, of the material upon the plate 31. The plate then moves and the other end of the plate or another plate is brought beneath the mould, when the remaining portion, the surround, of the material is extruded on to the plate. The mould then returns to a position over the table 16, and material of another colour, say blue, is forced into the mould, which then returns to the position over the plate 31, and in two operations extrudes the blue centre into the white surround and the blue surround around the white centre. The completed tiles are swept off the plate during its reciprocations by the scrapers 65 on to platforms 66.
Patent GB-1161863-A (GB)
Title: Method of Manufacturing Twist Drills or Similar Tools, and Tools, especially Twist Drills Produced by Same.
IPC: B21C23/08
Filed: 1968-04-23
Abstract: 1,161,863. Making twist drills and the like; extruding; drills. ROHDE & DÍRRENBERG. 23 April, 1968 [9 May, 1967], No. 19036/68. Headings B3A, B3C and B3P. A method of making twist drills or the like having internal liquid channels comprises providing a tool blank with at least one longitudinal bore traversing at least the intended cutter member, the bore being filled with a material whose melting temperature is higher than the deformation temperature of the tool blank material, heating the cutter member of the tool blank to deformation temperature and forming the cutter member in a non-cutting operation, removing the filler material and finishing the tool in a conventional manner. The tool blank may be made either in one piece or as a shank portion 2b welded to a cutter part 2a. Preferably the blank is made shorter and of greater diameter than the finished tool. The one piece blank (1) comprises cutter and shank portions and is drilled straight through, Fig. 1 (not shown). Alternatively blind bores may be drilled. The channels in the blank may be interconnected either by a recess at one end or by a transverse bore, the bore or bores in the shank member interconnecting therewith. The parts 2a, 2b are welded together after the bores have been filled with filler material. If the bores in the shank and cutter parts are continuous, then they may be made after the parts have been welded together. The cutting grooves in the case of a twist drill are formed by profiled rollers or in a die 10. For rolling, the open ends of the bores are first sealed, but when extruding, the ram of the die effectively seals the bores. The profiled blanks are hardened in known manner by insertion, cutter portion downwards, into a salt bath. The filler melts progressively upwardly, with consequent increase in pressure until still solid end portions are driven out. The end of the portion 2a is removed to expose the bores and a cutting edge is ground on to the tip. Alternatively the filler may be removed before or after hardening by a suitable solvent.
Patent GB-1030815-A (GB)
Title: An upholstery pad and a process for its manufacture
IPC: B29C44/04
Filed: 1964-05-07
Abstract: 1,030,815. Cushions &c. CIRRUS A.B. May 7, 1964 [May 14, 1963], No. 19072/64. Heading A4M. [Also in Division B5]. An upholstery pad comprises a core 4 of foamed plastics or foamed rubber surrounded on all sides by foamed rubber vulcanized to the core, the pad having opposed convex surfaces formed with holes extending inwardly to the core. The pad may be formed in a two-part mould 1, the lid and bottom of which carry inwardly directed pegs 2 the opposed ends of which are spaced apart when the mould is closed: The pre-formed core 4, preferably of polyurethane polyether, is supported on the lower pegs 2 and a latex composition 3a, 3b containing foaming and vulcanizing agents is introduced to the lower mould half. The mould is then closed whereby the core 4 is resiliently compressed between pegs 2 and the latex composition foams to fill the mould and is vulcanized to the core 4. The lid is finally removed and the core 4 expands to form opposed convex surfaces on the pad which includes holes in the outer foam rubber layers which accommodated the pegs 2.
Patent GB-690237-A (GB)
Title: Improvements in or relating to the finishing of fabrics
IPC: D06M15/423
Filed: 1950-08-01
Abstract: A glazed or lustred finish and also a soft hand and a good dimensional stability are imparted to fabrics of natural or artificial cellulose or derivatives thereof containing reactive hydroxyl groups by impregnating with an aqueous solution containing one or more dimethylol derivatives of ethylene urea, 1,2-propyleneurea, 1,3-propylene urea, 1,3-butylene urea, 2,3-butylene urea or the corresponding thioureas and an acidic catalyst, mechanically treating the impregnated fabric while at a moisture content of from 4-70 per cent calculated on the bone dry fabric and heating to 180-400 DEG  F. for a period of 5 seconds to 2 hours sufficient to effect reaction between the derivative and the cellulose, the amount of the derivative applied to the fabric being 0.5-50 per cent of the weight of the bone dry fabric. Heating of the fabric may be effected in part during the mechanical treatment. Fabrics of cotton, ramie, jute, linen, viscose or cuprammonium rayons or mixtures thereof may be treated. Specified catalysts are phosphoric, hydrochloric, acetic, oxalic, tartaric or p - toluenesulphonic acid, sodium bisulphate, ammonium chloride, ammonium phosphate, ammonium thiocyanate and 2-amino-2-methyl-1-propanol hydrochloride.  Impregnation may be effected locally, e.g. as by printing, to produce pattern effects. The mechanical treatment may comprise pressing, stamping or calendering to impart a pattern, shape, embossed or crepe effect, or glazed finish to the fabric.  The fabric may be dyed before or after the treatment to produce fancy pattern effects.  To the impregnating bath may be added lubricants, softeners, stiffeners or water-repellants such as sulphonated oils, sulphonated tallow, starch, sodium polyacrylate, soluble cellulose ethers, ammonium salts of polymers of styrene-maleic anhydride, quaternary ammonium salts, e.g. stearamidomethyl dimethyl benzyl ammonium chloride or cetyloxymethyl benzyl dimethyl ammonium chloride, a partially condensed urea-formaldehyde resin, a polyvinyl acetate dispersion, dimethyl trimethylol melamine, stearamidomethyl pyridinium chloride, s-di-[1-(2-stearoamidoethyl)] urea monoacetate and locust bean gum.  Numerous examples are given in one of which the fabric is, prior to the impregnation, dyed and pre-sized with polyethylene oxide.
Patent GB-238373-A (GB)
Title: Improvements in or relating to draught excluders for doors
IPC: E06B7/20
Filed: 1924-08-13
Abstract: 238,373. Poyser, G. W. Aug. 13, 1924. Draught excluders.-A device of the flap type, in which the flap is hinged to a moulding on the door, and is raised from the floor by gravity and depressed by a stud d engaging the jamb, is pivoted on studs e integral with or secured to the iron &c. weighting strip b.
Patent GB-735046-A (GB)
Title: A new or improved hose suspender
IPC: A41F11/02
Filed: 1952-07-30
Abstract: 735,046. Suspender fastenings. STAIT, H. E. Oct. 27, 1953 [July 30, 1952 ; Sept. 9, 1952], Nos. 19203/52 and 22580/52. Class 44. A hose suspender comprises a synthetic plastic body section 40, means, e.g. a slot 407, for attaching the body section to the part, e.g. elastic webbing 42, from which the hose is to be suspended, a slot in the body section having a rounded lower end 402, the marginal portion 404 bounding the under section of which is chamfered and an elongated upper portion 401 which is chamfered at the upper end 406, a synthetic plastic fastening section 41 of a counterpart shape to the slot which is chamfered at the lower end on the outer side and at the upper end on the outer side to permit the fastening section to fit snugly within the slot and means, e.g. a flexible plastic tape 44, attaching the fastening section to the body section. The arrangement is such that the hose is secured to a suspender by first placing the body section on the inside of the hose, then pressing the appropriate portion of the fastening section into the hose using the elongated upper portion as a finger grip and passing the engaged part of the hose and the portion of the fastening section through the slot and subsequently causing the fastening section to be fitted snugly within the slot whereby the fastening section is held in the fastened position by circumferential tension existent in the top of the hose when in wear. Alternatively the body section may be placed on the outside of the hose with the fastening section on the inside. As shown the slot has two lateral extensions 403 through which the fastening section is passed. The tape 44 fits in a groove in the fastening section. In a modification the extensions 403 are omitted, the fastening section being passed through the slot by turning it sideways. The tape 44 may be replaced by a cord and the grooves in the rear of the fastening section may be omitted. Instead of providing a slot 407 the body portion may be attached to the webbing when it is made of a thermo-plastic by using two short lengths of tape. These are placed one on each side of the body at the upper end and by the application of heat and pressure are caused to adhere to the body. The webbing 42 is then sewn between them.
Patent GB-314092-A (GB)
Title: Improvements relating to radio-telephonic systems
IPC: H04B14/08
Filed: 1929-06-22
Abstract: 314,092. Bruni, R. June 23, 1928, [Convention date]. Heterodyne receiving systems ; atmospherics, eliminating.-In a selective wireless telephonic system the signals are impressed on an intermediate-frequency current before modulating the carrier wave. At the receiver the intermediate frequency is selected, after passing through a receiver and detector 8, by a coil 9 and a condenser 10 in series and tuned to the intermediate frequency. Low-frequency atmospheric impulses are bye-passed or neutralized by a shielded inductance 16. A second coil 11, tuned to the intermediate frequency by a parallel condenser 12, is coupled to the coil 9 and also to a heterodyne oscillator 15 to produce beats which are received in a telephone 13. Both coils 9, 11 are enclosed in a shield 18 whilst an outer shield protects all the circuit components following the receiver 8 from external disturbance.
Patent GB-1356849-A (GB)
Title: Apparatus for treating material consisting of solid particles  having varied grain sizes with a gaseous medium
IPC: F28C3/16
Filed: 1971-06-07
Abstract: 1356849 Treating granular material; drying granular material UNILEVER Ltd 7 June 1971 [11 June 1970] 19284/71 Headings F4G and F4U [Also in Division B2] Apparatus for treating, i.e. heating or cooling and in particular drying and simultaneous cooling, material having solid particles of different grain sizes, e.g. seeds, comprises a chamber 1 supplied with material from hopper 10, sloping floor sections perforated to allow the passage of fluidizing conditioned gas stream from means 15 and discharge means 12 comprising a series of independently controllable, vertically spaced, horizontally extending outlets 24, 26, 27, 31 which allow the separate layers of material formed by the fluidizing process to be withdrawn.
Patent GB-820596-A (GB)
Title: Control system for railway vehicles driven by electric motors supplied with rectified current
IPC: B60L9/12
Filed: 1957-07-19
Abstract: 820,596. Control of D.C. motors. FORGES ET ATELIERS DE CONSTRUCTIONS ELECTRIQUES DE JEUMONT. June 19, 1957 [June 20, 1956; Oct. 19, 1956], No. 19307/57. Class 38 (3). [Also in Group XXXV] Traction motors 16, 17 are supplied through two rectifier bridges 14, 15 from two secondary windings 2, 3 of a transformer. To increase the output voltage, one of the power switches, say 4a, is opened so that all the load current is carried by the rectifier bridge 15 and secondary winding 3 associated with the other power switch 5a ; tapping switch 4 is altered off load to a different tapping of winding 2; power switch 4a is closed, and all the load current transfers to rectifier bridge 14 and winding 2 because of the higher supply voltage; power switch 5a is opened and tapping switch 5 is altered to the appropriate tapping of winding 3 ; switch 5a is finally closed and the load is again shared between rectifier bridges 14, 15 at the higher output voltage. The rectifiers prevent flow of circulating current when connections are made to tappings at different voltages. To reduce the output voltage the sequence of operation is reversed. The functions of switches 4a, 5a may be exercised by control electrodes of the rectifiers. To fit the rectifiers for the variations in current and voltage they may be in pairs 18, 19 which are connected in parallel when lower tappings are used at starting and in parallel when upper tappings are used at high motor speeds. The changeover may be made at a no-load stage of the tap-changing sequence. It is useful when the rectifiers are germanium or silicon diodes. In a modification (Fig. 2, not shown) the tappings on the two secondary windings are replaced by two groups of alternate tappings on a single secondary winding, and instead of the two rectifier bridges supplying all the motors, each motor is supplied from a single bridge one half of which consists of two parallel pairs of rectifiers, the other half being a single pair. For steady running both of the parallel rectifier pairs are connected to the operative tapping. To change tappings, one rectifier pair if disconnected from the operative tapping and connected to the next tapping, and this sequence of action is followed by the other rectifier pair.