baber/WOPTO huggingface dataset:
Patent GB-322219-A (GB)
Title: Improvements in apparatus for washing woven fabrics
IPC: D06B3/24
Filed: 1928-08-30
Abstract: 322,219. Freiberger, M., and Ges. f³r Textilveredelung Getevau. Aug. 30, 1928. Winch machines. - A web of fabric lightly tensioned at a is washed in a shallow trough of small liquid capacity, passing helically round the guide rollers C, D with only slight submergence of the lower runs of the fabric as it passes through successive compartments formed by partitions S through which the liquid flows alternately in opposite directions. In the construction shown in Figs. 1 and 2, the guide rollers C, D are not submerged and are not driven; but roller C may be partially submerged and both rollers may be driven from the squeezing rolls B, A. The rollers C, D may also be vertically adjustable by screw means controlled by a hand wheel. Fig. 2 shows the partitions S gapped at alternate ends so that the water in its course from E to. F travels alternately against and with the lower runs of the fabric, the final washing being effected in clean water.
Patent GB-1451829-A (GB)
Title: Disposable bed covering
IPC: A61G7/05
Filed: 1974-06-05
Abstract: 1451829 Mattresses; blankets R D DAVIS 5 June 1974 [9 Oct 1973] 25006/74 Headings A4M and A4S A disposable bed covering which over-lies a conventional mattress 12 and helps prevent bed sores comprises an underpad 16 comprising randomly orientated polymeric filaments and an air permeable lower sheet 24 of non-woven polymeric material, the air permeability of the pad being at least 300 cu. ft./min/sq. ft. and the lower sheet having a weight not greater than 5 oz/sq. yd. and an air permeability of at least 200 cu. ft./min/sq. ft. An upper sheet 32 of non-woven polymeric material, a blank 40 and a bed spread 46 may be connected by stitching to the foot end of the lower sheet. Closed cell, pneumatic cellular filaments which are secured at their junctions by adhesive may be used to form the under pad. The sheets are preferably of crimped or straight fibres of a spun bonded polyester. The blanket 40 may comprise a pair of inter-connected sheets (54), (55), Fig. 6 (not shown) of non-woven polymeric material between which a polyester wadding or floss 56 is disposed.
Patent GB-868200-A (GB)
Title: Optical lens systems
IPC: G02B23/08
Filed: 1957-08-08
Abstract: 868,200. Optical systems. CHICAGO AERIAL INDUSTRIES Inc. Aug. 8, 1957 [Oct. 16, 1956; Dec. 7, 1956], No. 25030/57. Class 97(1) A lens system for periscopes or view-finders comprises an objective lens assembly, an erector lens assembly and an aspheric field lens adapted to correct the distortion of the erector lens assembly and the spherical observation of the principal rays. The periscopic or view-finder system shown in Fig. 1, has an objective 10 which is not corrected for distortion, a field lens 12 with an aspherical rear surface which corrects for the objective distortion and for spherical observation of the principal rays, a first image erector 34 followed by another aspherical field lens 36 disposed close to a reticule plate 38 and correcing for distortion introduced by erector 34, a second image erector 40 which is well corrected, a field lens 40 followed by a beam splitting cube 56 associated with an illuminated reticule 58, a third image erector 59 and an eye lens 64. Optical data are given for each component of the system and also for a second form of the system which differs from that shown only in the construction of the objective 10, field lens 12 and image erector 34 and in the angle of view covered; the field lens 12 in this case does not have an aspheric surface correcting for distortion due to the objective. The two systems may be wide angle and narrow angle respectively and be combined as shown in Fig. 9, the components to the rear of the movable mirror 67 being common to the 2 systems. The objective 10 may be as described in Specification 868,201.
Patent GB-636421-A (GB)
Title: Improvements in and relating to demodulation in pulse signalling systems
IPC: H04J3/04
Filed: 1947-09-12
Abstract: 636,421. Pulse mediation. GENERAL ELECTRIC CO., Ltd., and FARREN, L. I. Sept. 12, 1947, No. 25094. [Class 40 (v)] For demodulating time-modulated pulses, a cathode-ray tube beam of elongated crosssection is swept, in a direction perpendicular to the length of said cross-section, across an aperture in a conductive member. The dimension of the aperture, perpendicular to the beam traverse, varies in a direction parallel to the direction of traverse and the beam is intensity modulated by the pulses during its traverse across the aperture so that pulses derived from the electrons passing through the aperture are amplitude modulated. The aperture may be substantially triangular and the beam current is preferably zero when unmodulated by the pulses. The beam is modulated by a grid electrode to which the pulses may be applied as in Specification 619,785, and the invention may be applied to the multichannel systems described therein.
Patent GB-186825-A (GB)
Title: Safety detachable handle bar for pillion riding
IPC: B62J1/14
Filed: 1921-09-24
Abstract: 186,825. Griffiths, A. J., and Baxter, R. E. Sept. 24, 1921. Seat attachments.-A clip or fitting 3 secured to a bar 4 of the, luggage-carrier is provided with a projection or socket 5 adapted to engage with a corresponding socket or projection 2 on a detachable support for a pillion rider, such support taking the form of an arm-rest or handle-bar, a foot-rest (as shown), or a back-rest, and the parts being secured together by a screw-stud &c. 6.
Patent GB-649682-A (GB)
Title: Improvements in the manufacture of esters of malonic acid
IPC: C07C69/38
Filed: 1948-09-29
Abstract: The di-n-butyl ester of (ethyl) (1-methyl-n-butyl) malonic acid is made from di-n-butyl malonate by 1-methylbutylation, followed by ethylation.  The product may be condensed with urea or thiourea. Examples describe the reaction of di-n-butyl malonate with 1-methyl-n-butyl bromide, followed by ethylation of the product with diethyl sulphate or ethyl bromide.
Patent GB-1439531-A (GB)
Title: Fluidized catalyst regeneration process
IPC: B01J29/90
Filed: 1973-05-29
Abstract: 1439531 Regenerating coke containing catalyst U O P INC 29 May 1973 [30 May 1972 (2) 8 June 1972] 25365/73 Heading B1F A process for regenerating coke-contaminated particle form spent catalyst withdrawn from a hydrocarbon conversion zone comprises the steps of introducing the spent catalyst via 9 into a fluidised dense bed 1 and partially regenerating it therein by combustion of the coke with an oxygen containing regeneration gas from 11 and producing partially spent regeneration gas containing carbon monoxide passing resulting partially regenerated catalyst and partially spent regeneration gas directly from the bed 1 upwardly in a dilute phase through transport riser 2 and therein effecting further combustion of coke from the catalyst and oxidising at least a portion of the carbon monoxide to carbon dioxide e.g. with air from 18 and fuel from 20, separating catalyst and gas in cyclone 3, collecting the catalyst as a second dense bed 6 and withdrawing it at 6.
Patent GB-254279-A (GB)
Abstract: 254,279. Krupp Akt.-Ges., F. June 29, 1925, [Convention date]. Cash registers with item-printing mechanism. -In a cash register provided with a feeler for the slip or record-strip adapted, when the slip is absent, to cripple the impression mechanism, the disablement is effected by changing the direction of movement of the impression hammer. The feeler 23 guided by a rod 11 is reciprocated with respect to the record-material 28 by arms 21, 20 and a cam 17. The hammer 2 is pivotally mounted on a spindle 3 carried by a frame 4, 5 rocked by a cam 10, and has a roller 14 pressed by the action of a spring 16 into guiding relation with a fixed surface 13. In the operation of the machine the feeler is advanced, and if there is obstruction by the paper a bell-crank lever 29 rocks insufficiently to affect the hammer. Otherwise, with the further advance of the feeler, the pin 30 on the bell-crank lever is brought into the path of a bent arm 31 forming one of the supports of the hammer, which is thereby rocked clockwise when moved towards the type wheel 1 and is deflected into the position shown in broken lines, whereby impression from alternative type may take place.
Patent GB-255886-A (GB)
Abstract: 255,886. Roessler & Hasslacher Chemical Co., (Assignees of Trusler, R B.). July 22, 1925, [Convention date]. Acid sulphates of organic amides are obtained by treating the corresponding nitrile with dihydrated sulphuric acid, optionally in the presence of a catalyst comprising a halogen compound and/or with the addition of an inert liquid. The process is applicable, for example, to simple aliphatic nitriles or to such nitriles containing a single hydroxyl group, but is not applicable, for example, to nitriles containing two adjacent hydroxyl groups. According to one example, molecular proportions of hydrogen cyanide and dihydrated sulphuric acid are mixed while cooling and allowed to stand, and after some time, it may be seven days, the mixture sets to a crystalline mass of formamide acid sulphate. Other examples describe the preparation of formamide acid sulphate in presence of a catalyst with and without the addition of an inert liquid, and the preparation in similar fashion of the acid sulphates of lactamide and benzamide.
Patent GB-534828-A (GB)
Title: Improvements in or relating to a.c. electric circuit-breakers having arc-control devices
IPC: H01H33/76
Filed: 1939-09-13
Abstract: 534,828. Fluid-blast switches. REYROLLE & CO., Ltd., A., ALLEN, A., and WILD, R. W. Sept. 13, 1939, No. 25756. [Class 38 (v)] An arc-control device in an alternating-current switch comprises two relatively-rotatable, insulating, cantact-carrying members so disposed one within the other that the arc is drawn in a narrow arcuate space between them, means being also provided for causing a deionizing blast to flow out of the space through one or more vents in the wall thereof. The device of Fig. 2 comprises a movable contact A carried on the rim of an insulating disc A<1> which fills the space between two insulating plates B<2> which, with a cylindrical wall B of short axial length, constitutes the outer member, the whole being secured along with insulating cover plates B' by means of bolts. The plates B<2> extend inwardly towards a metal boss A' which is connected to the contact A and is mounted on an operating shaft A'. The arcing- space C is an enclosure between the rim of A' and member B and is made of tapering section by means of an insulating ring A<5> on the rotor, which ring is of a thickness that increases from the contact A until at about 20 degrees it becomes of constant thickness, so providing a short, relatively wide space for dealing with largecurrent arcs, while providing a long, narrow space for drawing out small-current arcs. Vents B' extend around three-quarters of the periphery of member B from the metal plunger contacts D on the outer structure. The device may be immersed in an oil tank or, as shown, may have linings B<4>, A<6> of boron, fibre or other solid material giving off an extinguishing gas under arc-action. An isolating break may be obtained by moving a coupling-member along the shaft A<4> away from the metal boss A<3> which is suitably insulated therefrom, but, as shown, the outer structure is moved to open a knife-blade coupling D<1>, D<2>. In Fig. 4 a pair of seriesconnected breaks are provided by contacts A on the rotor engaging contacts D on the outer structure B, each break having an arcuate space and vents B<1>. The rotor-travel is about 90 degrees and an isolating break,may be got by rotating the outer structure to disengage contacts D<3> thereon from contacts E' carried by the oil-tank E. The device can be adapted for gas-breaks by providing linings as in Fig. 2. Both the above arrangements can be adapted for polyphase circuits by insulating the connectors A<2> from the common shaft A<4> and superimposing the phases. Fig 3 shows device having vents in the inner structure as in Specification 535,217, which comprises a rotatable insulating tube L with a gas-evolving lining L<1>, in which is embedded a strip contact M co-operating with a fixed contact J in the outer insulating tube H having a gas-evolving lining H<2>. The tube L has a guide flange L<2> and upper and lower bearings K<1>. K<2>. The Specification refers also to delivery of pressure-gas from an external source.
Patent GB-810653-A (GB)
Title: Improvements relating to containers for molten metal
Inventor: MORTON JAMES STORRS
IPC: B22D41/08
Filed: 1954-09-06
Abstract: 810,653. Ladles. CONTINUOUS CASTING CO. Ltd. Sept. 6, 1955 [Sept. 6, 1954], No. 25857/54. Class 82(1) [Also in Group XXII] A heat retaining shield is mounted on or built into the outside of the wall of a ladle, surrounding the pouring orifice thereby reducing the temperature gradient between the bore of the orifice and the outer surface of the ladle wall in the region of the orifice. The shield may be an annular lagging disc 20, Fig. 1, of refractory material of low thermal conductivity and specific heat, or a frusto-conical steel cowl arranged with its larger end uppermost and welded to the shell of the container so as to afford an air pocket surrounding the mouth of the nozzle. In a further modification, Fig. 3, 'the nozzle brick 40 has a skirt 41.
Patent GB-509373-A (GB)
Title: Improvements in or relating to refrigerating apparatus
IPC: F25C1/24
Filed: 1938-09-05
Abstract: 509,373. Ice-making. EWART, J. H., HAWES, W. B., and EWART & SON, Ltd. Sept. 5, 1938, No. 25948. [Class 29] A receptacle for freezing trays comprises an aluminium or other metal casting 4 in the shape of an open-ended tray having a U-shaped conduit 5 for refrigerant cast in the base, with the ends of the conduit projecting beyond the closed end and adapted for connection by welding or otherwise to the ends of a conduit of a similar tray located above or below it as shown in Fig. 4, so as to form an evaporator of absorption refrigerating apparatus. A bracket 6 with curved rests 7, 8 for bottles &c. to be cooled may be secured to a group of the trays by screws or otherwise.
Patent GB-1469270-A (GB)
Title: Display unit
IPC: G09F15/00
Filed: 1974-06-12
Abstract: 1469270 Display devices TYRODE SA 12 June 1974 [12 June 1973] 26022/74 Heading G5C A collapsible display unit has a supporting column 1 to which display panels 2, 3 are fixed, the column having at least four trees 1a, 1b 1c, 1d hinged together along longitudinal edges to allow the column to be folded flat, and having transverse folding lines 4 to allow the flattened column to be folded zig-zag wise with panels 2, 3 on top of each other. Internal bracing tongues 5 are hinged to a face 1d and are urged to the unfolded position by rubber bands 6. The unit may have feet 8 and a carrying handle 7. The panels may be spaced from the column 1 by extension lugs 11 as in Fig. 4. Column 1 may take a triangular or hexagonal section, with panels extending from each face. In another form, one panel is apertured and provides a support platform.
Patent GB-279623-A (GB)
Title: Improvements in or relating to carburettors for internal combustion engines
IPC: F02M7/02
Filed: 1926-10-19
Abstract: 279,623. Brown & Barlow, Ltd., and Brown, C. Oct. 19, 1926. Spray carburettors.-Aerated fuel formed in an annular chamber f bv fuel and air admitted respectively through calibrated orifices e, j in an interchangeable plug a, passes through a conduit g to an annular chamber around the choke tube h, and hence through orifices m into the mixing chamber.
Patent GB-1000306-A (GB)
Title: Inflatable tubular structure
Inventor: JACKSON ALBERT EDMUND
IPC: B29D23/00
Filed: 1962-07-06
Abstract: 1,000,306. Mining roof supports. GEORGE ANGUS & CO. Ltd. June 26, 1963 [July 6, 1962; Nov. 27, 1962], Nos. 26097/62 and 44839/62. Heading E1E. [Also in Divisions B5, B7 and F2] A inflatable bolster formed of superposed plies of rubberized fabric wrapped around one another with staggered joints and cured under heat and pressure, may be used for supporting the roof of a colliery. Polyvinyl chloride or a mixture of polyvinyl chloride and nitrle rubber bonded to nylon yarn may be. used for the plies.
Patent GB-1384177-A (GB)
Title: Method of and reinforcing elements for stabilisation of rock
IPC: E21D20/02
Filed: 1972-06-05
Abstract: 1384177 Reinforcing rock formations EXCHEM HOLDINGS Ltd 1 June 1973 [5 June 1972] 26102/72 Heading F2H  A method of reinforcing a rock formation comprises drilling a borehole in the rock and inserting into it a reinforcing assembly, comprising. longitudinally extending part-annular segments 2 fixed in a longitudinally staggered relation about a coaxial inner tube 1 as the assembly is being inserted, until the leading end of the assembly reaches the inner end of the borehole and the rear end of the assembly lies adjacent the mouth of the borehole, feeding a bonding composition through the inner tube 1 so that it flows from the leading end of the assembly and fills the annular space between the assembly and the borehole wall, and allowing the composition to harden and bond the reinforcing assembly to the rock. The segments 2 may be of wood, metal, plastics, asbestos cement, or resinbonded glass fibre, and are glued to the inner tube 1, which may be of metal or plastics, e.g. high density polyethylene. A pointed tip section (Fig. 3, not shown) having ejection holes (3) along its sides may be fitted to the leading end of the reinforcing assembly. The bonding composition may be an unsaturated polyester resin with a benzoylperoxide/amine accelerator, with 50% by weight of inert filler and 1% of pyrogenic silica. In Fig. 1, segments 2 and a tube 1 are, e.g. 66 inches long and are assembled in a staggered manner to form a unit 72 inches long. The units are joined together by 8 inch lengths of high density polyethylene tube pushed over the joints and anchored with adhesive tape. In a modification (Fig. 2, not shown) the inner tube is continuous, and is drawn from a coil, the segments being glued on one by one as the assembly is fed into the borehole.
Patent GB-361021-A (GB)
Title: Improvements in or relating to submarine telephone cables
IPC: H01B7/14
Filed: 1930-09-02
Abstract: 361,021. Submarine cables. SIEMENS-SCHUCKERTWERKE AKT.-GES., Siemensstadt, Berlin. Sept. 2, 1930, No. 26201. Convention date, Dec. 6, 1929. [Class 36.] In order to avoid pressure differences in the oilfilling of long submarine cables due to differences in depth at which the cable is laid, any shifting of the oil filling is prevented by subdividing the cable length into oiltight sections. Fig. 1 shows a cable composed of lengths 13, 14 15, connected by Pupin coil pieces 16, 17 ; sealing pieces 18 divide the cable into short oiltight lengths. Fig. 2 shows a cable 2 with lead sheath 3 and a Pupin coil 4 surrounded by a lead sheath 5. An oiltight flexible closing member 6 of vulcanized rubber is connected with the coil 4 and is surrounded bv a lead sheath 7. The lead sheath 7 is connected with the sheaths 3, 5 by welds 8, 9. The closing members may be fitted in the coil pieces, preferably in the conical parts.
Patent GB-334699-A (GB)
Title: Improvements in or relating to container covers and retaining devices for the fastening members thereof
IPC: H02G3/14
Filed: 1929-08-28
Abstract: 334,699. White, A. E., (Erie Malleable Iron Co.). Aug. 28, 1929. Washers.-The screws for securing the cover of a container for conduit boxes are held to the cover when unscrewed by fibre washers 9 arranged below the screw heads in recesses 5 in the covers which are provided with longitudinal grooves to grip the edges of the washer. Specification 270,928 is referred, to.
Patent GB-806452-A (GB)
Title: Improvements in methods of making electromagnetic coils
IPC: H01F41/04
Filed: 1954-12-29
Abstract: 806,452. Electric coils. SYLVANIA ELECTRIC PRODUCTS Inc. Dec. 29, 1954 [Dec. 30, 1953], No. 26229/58. Divided out of 806,451. Class 35. [Also in Group XXII] Coils are made by winding a roll of conducting foil 2 spaced by insulation 3 on a rotatable wooden core 1 and slicing off the coils by a thin cutter 5 which is advanced through the radial distance between turns for each revolution of the roll. It is stated that this avoids producing metal bridges between turns. The foil is secured in a roll by the insulation layer or by impregnation before slicing with wax, resin or synthetic plastic. The cutter may be of rotating wheel type and coils of length 0.013 inch are cut off. The foil is 0.00025 inch thick aluminium. The coils may be mounted on a ferromagnetic core or may be enclosed in a cup of iron powder or iron oxide bonded with plastic. Alternate coils on a core may be primary and secondary windings of a transformer where tight coupling is required; otherwise the coils may be grouped in the usual way. Coils may be connected in series or parallel, the coils being wound in the appropriate senses.
Patent GB-1423647-A (GB)
Title: Error detection in digital transmission systems
IPC: H04L1/24
Filed: 1972-06-06
Abstract: 1423647 Digital data tramission; error detecting STANDARD TELEPHONES & CABLES Ltd 24 May 1973 [6 June 1972] 26357/72 Heading H4P In a digital data system in which errors introduce unwanted frequency components, the errors are detected by means of a filter which detects the frequency components. The signals are applied to it via a differential amplifier whose gain is reduced at a predetermined low frequency.
Patent GB-694876-A (GB)
Title: Improvements relating to drying kilns
IPC: F26B9/06
Filed: 1950-10-30
Abstract: 694,876. Drying systems. CUBBAGE, L. A. Nov. 8, 1951 [Oct. 30, 1950], No. 26389/50. Class 34 (ii) A drying kiln divided into compartments 10 by walls 10a has a continuous back wall 11, a control room 13 and a front wall 12 and fans 21 in each compartment, the fans being mounted each on a shaft 20 extending transversely across the compartment and the drive to the shaft being taken by pulleys 20a in wells 17 in the dividing walls 10a. Air is delivered by the fans to contact steam heated coils 27 located above a horizontal partition 26 having openings 28 through which the air passes into the lower part of the kiln containing the material to be dried and openings 29 through which the air can leave the lower.part of the kiln. Air enters and leaves the kiln compartments 10 through pairs of vent pipes 31a, 316 passing through the roof of the kiln and arranged one on each side of the fans 21 and in communication with ducts 32a, 32b having dampers operated from the control room 13 by means of a pivoted arm 36 on the damper shaft 37 and operated by a rod 38. Each compartment 10 has a wet and dry bulb thermometer associated with a recorder 40, the water bath 41 being filled via pipe 42 and observations being made through window 44. Steam is supplied to the coils 27 via pipes 14, 15 so that all controls are located in the control room 13.