baber/WOPTO huggingface dataset:
Patent GB-1154124-A (GB)
Title: Method for Reducing Phthalide Content of Phthalic Anhydride
IPC: C07C51/573
Filed: 1967-01-23
Abstract: 1,154,124. Purifying phthalic anhydride. CHEMICAL PROCESS CORP. 23 Jan., 1967 [7 Feb., 1966], No. 3340/67. Heading C2C. Phthalide impurity is removed from crude phthalic anhydride (made, e.g., by vapour phase air oxidation of o-xylene) by heating with H 2 SO 4  in a mixture, which contains chemically combined H 2 O as a hydrate of H 2 SO 4  or as phthalic acid, under such conditions that sufficent chemically combined H 2 O is retained to effect the selective reaction of H 2 SO 4  with phthalide to form phthalic anhydride, SO 2  and H 2 O until a major portion of phthalide has reacted.
Patent GB-834407-A (GB)
Title: Improvements in or relating to electrically heated devices with plug-in thermostat
IPC: A47J37/10
Filed: 1956-02-02
Abstract: 834,407. Electric cooking utensils. NATIONAL PRESTO INDUSTRIES Inc. Feb. 2, 1956 [June 28, 1955], No. 3345/56. Class 39(3) [Also in Group XXXVI] An electrically heated cooking utensil comprises a vessel 4 in the base of which is cast the heating element 14. Said element terminates at the periphery of the vessel in a waterproof connector consisting of a guard 16 surrounding pins 7 which project from a portion 18 of the vessel containing a cavity 19 located intermediate the pins and adapted to receive a temperature sensing probe on a plug connector containing a thermostatically controlled switch (see Group XXXVI), when the plug is engaged with the pins 7. Specification 834,408 is referred to. Reference has been directed by the Comptroller to Specification 792,453.
Patent GB-178947-A (GB)
Title: Improvements in lubricating systems
IPC: F16N25/02
Filed: 1921-01-27
Abstract: 178,947. Parsons, Sir C. A., Cook, S. S., and Douglas, L. M. Jan. 27, 1921. Addition to 161,232. Fluid-actuated valves.-In a lubricating system as described in the parent Specification, in which the proportion of oil delivered from a common source to two branches, each provided with a cooler, is controlled automatically by a distributing-valve, which, should the flow through either cooler become excessive, automatically bypasses that cooler, the pistons of the valve are made capable of relative movement so that both coolers may be by-passed simultaneously. The pistons 3, 4 are slidably mounted on a common spindle 5, being pressed by springs 18, 19 against shoulders 16, 17 on the spindle, and move in a cylinder 6 provided with inlet aperture 7 and outlets 8, 9, By-pass openings 10, 11 connect the ends of the cylinder to the outlets of the respective coolers. Apertures 14, 15 are formed in the pistons so that, on a drop of pressure occuring at the outlet of one cooler, the pistons move in one direction or the other so that that cooler is by-passed. In the event of both coolers becoming chokea, one or both of the pistons slide along the spindle against the action of the springs so that both coolers are by-passed. Annular spaces 22, 23 may be provided between the pistons and spindle, so that immediately either piston is forced out of contact with its corresponding shoulder 16 or 17, oil is by-passed through apertures 24 or 25. Only one of the pistons may be provided with a spring, or the springs 18, 19 may be replaced by a single tension spring connected between the two pistons, in which case the spindle 5 may be dispensed with.
Patent GB-140875-A (GB)
Title: An improved resilient tyre, and method of, and means for, manufacturing the same
IPC: B29D30/02
Filed: 1919-02-12
Abstract: 140,875. Ostberg, A. J., and Kenny, A. Feb. 12, 1919. Non-metallic elastic bodies and cores. - In cushion cores for tyres of the kind which are formed by the use of an outer mould in two halves and an inner mould having projections to produce recesses in the core of the tyre, the separate halves are joined together either by an adhesive solution or by vulcanizing. The core is inserted into a tyre cover, to which it may be vulcanized, the width of the bases of the cover and core being greater than that of the wheel rim.
Patent GB-102300-A (GB)
Title: Improvements in and relating to Toys.
Inventor: ANDERSON WILLIAM GEORGE
IPC: A63H33/08
Filed: 1916-03-10
Abstract: 102,300. Anderson, W. G. March 10, 1916. Addition to 24813/14. Mechanical constructions, details for building up.-The interlocking binding-pieces for connecting the parallel walls of toy buildings &c. described in the parent Specification are modified by being grooved and tongued at the ends so that each end of a binder can be interlocked with the adjoining end of a corresponding binder at rightangles and on the same level to prevent relative movement of the pieces in any direction in an horizontal plane. The binding-piece a is provided at each end with a longitudinal tongue a<2> and a transverse groove a<3> on the inner side. The corresponding binder b on the adjoining wall has reduced end portions with grooves b<3>, b<5> in the vertical surfaces b<2>, b<4> respectively. The tongue a<2> and the portion a<4> of the binder a engage the grooves b<5>, b' respectively of the binder b, while the portion b<6> of the binder b engages the groove a<3> in the binder a. Tongues a<5>, b<7> or grooves may be provided on the top or bottom surfaces, or both, of the binders. To prevent vertical displacement, slots a<6>, b<8> may be provided in the ends of the binders to receive a locking-piece.
Patent GB-504060-A (GB)
Title: Improvements in or relating to radio direction finding receivers
IPC: G01S1/02
Filed: 1938-02-04
Abstract: 504,060. Directive wireless systems. TELEFUNKEN GES. FUR DRAHTLOSE TELEGRAPHIE. Feb. 4, 1938, No. 3603. Convention date, Feb. 4, 1937. [Class 40 (v)] In an impulse direction-finding receiver of the homing type in which the connections between the frame aerial and the auxiliary open aerial are simultaneously reversed with the reversal of the output voltage polarity, the impulses occurring during alternate periods of the switching are delayed for a time equal to the switching period so that impulses occurring in one period are fed to the indicating instrument simultaneously with impulses of opposite polarity occurring in the next period. Since the resultant impulses are of the same polarity, the reversal frequency may be reduced without causing the indicator needle to flicker. In Fig. 5, the high-frequency signals obtained on reversing the. frame aerial are applied alternately to the grids of the rectifiers R1, R2 and the impulses from R2 are delayed in the network L before being combined with the impulses from R1 in the amplifier R3. Alternatively, the delay may take place in the high-frequency circuit. The resultant impulses actuate the zero-centre instrument M. In order to obtain a more steady indication, the impulses may be smoothed out in the low-frequency stage by means of condensers C1 and C2, the values of the anode resistances r1 r2, shunt resistances W1, W2 and the rectifiers G1, G2 being such that the condensers have small charging times but discharging times longer than the impulse duration.
Patent GB-1026712-A (GB)
Title: Boxes and like containers for face and talcum powder
Inventor: GEE AARON SAM
IPC: A45D33/00
Filed: 1964-01-28
Abstract: 1,026,712. Powder boxes. RAYETTE BEAUTY PRODUCTS Ltd. Jan. 25, 1965 [Jan. 28, 1964], No. 3647/64. Heading B8P. A box for face powder &c. comprises a main open-ended body 1, the Figure (not shown), of oval, cylindrical &c. cross-section, and having a breakable dividing wall 2 perpendicular to its main axis, two sealing ridges 3 in the form of rings around the outer wall of the body engaging tightly with the inside of an outer cover 4 having a base 5 while a domed and flanged loose lid 6 closes the box. The dividing wall 2 separates the box into upper and lower compartments A, B for a powder-puff and the powder, respectively. The box body 1 and the outer cover 4 may be made from cardboard, the dividing wall 2 from paper and the lid 6 from a transparent plastics.
Patent GB-547981-A (GB)
Title: Improvements in or relating to looms for weaving
IPC: D03D47/24
Filed: 1941-03-18
Abstract: 547,981. Looms with stationary weft supplies. SULZER FRERES SOC. ANON. March 18, 1941. No. 3688. Convention date, March 21, 1940. [Classes 142 (ii) and 142 (iii)] The guide for the weft-inserting device moveswith the slay which is arranged to move in a direction inclined to the central plane of the shed, so that, at beating-up, the whole guide swings to one side of the fabric and does not foul the temples. As shown the shaft 6, about which the slay arm moves is displaced from a line passing through the edge 19 of the fabric and normal to the central plane 18 of the shed, towards the warp beam so that the slay 8, with the guide 14 for the weft-inserting device, moves in the direction 25 inclined to the plane 18 and the guide moves wholly below the fabric 15 and the temples 16 at beat-up. The reed 10 is inclined to the plane 18 during picking so that at beating-up, it starts at, or approximately at, right angles to the fabric 15. The shuttle 20 is guided by teeth 21 fixed in slots in a T-iron 13 fixed to the slay 8 ; the weft-inserting device may be a flexible strip.
Patent GB-588385-A (GB)
Title: Improvements in and relating to rotary fans
IPC: F04D29/36
Filed: 1945-02-14
Abstract: 588,385. Screw fans. AIRSCREW CO., Ltd., and RIDDIFORD, R. G. Feb. 14, 1945, No. 3700. [Class 110 (i)] The blades 12 of a screw fan impeller have circular roots 11 which are clamped between complementary plates 8. The plates 8 are bolted together and to rotor side discs 1, 4. The number of blades on a rotor may be varied by using spacer plates between the plates 8. A similar construction may be used for a guide vane ring. The rotor is balanced by means of pieces 17 in radial slots 16 or by such pieces in segmental slots.
Patent GB-940297-A (GB)
Title: Improved glass elements
IPC: C03C3/062
Filed: 1960-02-04
Abstract: Transparent indigo blue glass elements with a thickness not exceeding 2 millimetres, a peak in visible light transmission between 0.40 and 0.52 microns and essentially absortive of all visible wavelengths of light outside of this range, are of a glass having a significant amount of both CoO and TiO2 and consisting essentially of at least 90 weight percentage of the following oxides in weight percentages:-CoO1-10; TiO220-50; BaO 0-40; PbO 0-50; BaO+PbO 20-60; SiO2 5-25; B2O3 0-15; SiO2+ B2O3 10-30; and R2O (alkali metal oxides) 0-15.  A number of particular examples are given.  The composition may also include other alkaline earth oxides, zinc oxide, cadmium oxide and germanium oxide.  Small amounts of fluorine may be added to promote fluidity. The elements are used in the form of beads, fibres, flakes, thin plates and " gem " stones.  The glass is melted at about 1200-1500 DEG  C. and quenched in cold water to form small particles. Beads are formed from these particles by dropping them through a high temperature flame or radiant heating zone to soften them so that surface tension forces cause them to assume a spherical shape while free falling.  They are then allowed to fall into a current of cool air to harden them. The " gems " may be made by polishing the rough particles or by pressing.  The fibres may be formed by jet blowing a stream of the molten glass and filaments by drawing through a die. Thin plates and flakes may be made by casting a thin layer of molten glass on to a cool surface such as steel at room temperature.  The thin plates can be used for capacitors.  The beads are useful for reflex reflecting, such as in highway marking paints, in elements formed of beads with associated hemispherical specular reflective coatings and in reflex reflecting sheets or screens, such as for telecasting.
Patent GB-1103282-A (GB)
Title: Improvements in devices for facing and centering work pieces
IPC: B23B49/04
Filed: 1966-01-28
Abstract: 1,103,282. Facing and centring tool. GEOGE FISCHER A.G. 28 Jan., 1966 [29 Jan., 1965], No. 4045/66. Headings B3B and B3C. A facing and centring tool comprises a base member 1 having a central bore 1a, a drill clamping sleeve 2 carrying a centre drill 4 detachably located in the bore 1a and three facing tools 13, 14, 15 located at different diameters and mounted respectively on holders 9, 10, 11 which are adjustably located in guide channels 6, 7, 8, at least one of and preferably both facing tools 14, 15 being finely adjustable in axial direction by wedge means and operating screws 17, 16 to ensure that the three tools 13, 14, 15 operate in a common plane. The holders 9, 10, 11 are also adjustable to give positive or negative rake to the tools 13, 14, 15. When it is desired to change the drill 4 and its clamping sleeve 2, e.g. to use a different size of drill, release of the drill 4 may be effected by a screw member 5. Coolant passages 12 are provided in the base member 1.
Patent GB-446849-A (GB)
Title: Improvements in and relating to markers for instruction and like sheets
IPC: G06M1/02
Filed: 1935-02-08
Abstract: 446,849. Bookmarkers. WINNARD, A., 67, Fitzwalter Road, Sheffield. Feb. 8, 1935, No. 4052. [Class 16] See also Group XVI] A line-marker for instruction sheets for knitters &c. comprises a strip 2 of celluloid, metal, cardboard, &c. having a tongue 1 punched out along three sides to engage the sheet, and a rotary index 6 to record, for example, the number of repetitions of an operation which are to be made. A raised part 4 at one end provides a straight-edge for guiding the marker as it is slid down the sheet. The part 4 is separated from the marker by a spacing-piece 5, which is cut away to accommodate the rotary index 6. The part 4 is notched to receive the bent part of the tongue, so that the sheet can engage the straight-edge. The marker may have a scale and needle-gauge holes 11.
Patent GB-997365-A (GB)
Title: Improvements relating to alkyl lead compositions
IPC: C07F7/24
Filed: 1962-02-02
Abstract: The redistribution of alkyl radicals in an alkyl lead composition or in an alkyl lead compound containing different alkyl groups is brought about by the addition of from 0.1 to 3.0% by weight, based on the weight of the alkyl lead, of a boron trifluoride etherate at ordinary atmospheric temperatures. Preferably a mixture of tetramethyl lead and tetraethyl lead is employed.  The interchange may take place in the presence or absence of solvents or diluents such as toluene, hexane and gasoline or in the presence of scavengers such as ethylene dibromide, ethylene dichloride and mixtures thereof. The etherates preferred are those in which the alkyl groups contain from 1 to 6 carbon atoms.
Patent GB-1210335-A (GB)
Title: Isomerization of aliphatic compounds
Inventor: CHEN NAI YUEN
IPC: C10G35/00
Filed: 1969-01-24
Abstract: 1,210,335. Isomerizing aliphatic hydrocarbons. MOBIL OIL CORP. 24 Jan., 1969 [18 April, 1968], No. 4098/69. Addition to 1,117,568. Heading C5E. Aliphatic hydrocarbons are isomerized using a catalyst comprising a crystalline synthetic aluminosilicate zeolite having the X-ray powder diffraction pattern of Table 1 of Specification 1,117,568. The zeolite may be a ZSM-4 which has the composition where M is cation which may be H, a metal (e.g. Al or rare earth) or both and n is the valence of M. The feedstock may be acyclic or cyclic alkanes or olefins, particularly a butane, pentane or hexane. The isomerization may be carried out at 350-900‹ F., 0-3000 p.s.i.g. continuously or batchwise.
Patent GB-232727-A (GB)
Title: Improvements in or relating to the warp supply of power looms
IPC: D02H13/28
Filed: 1924-02-18
Abstract: 232,727. Ballantyne Bros. & Co., Ltd., D., and Euman, J. R. Feb. 18, 1924. Creel-frame arrangements; warps, tensioning and guiding.-Extra warp threads for selvedges &c. are passed from bobbins on the pegs 8, Figs. 1 and 2, of a creel through the perforations 14, Fig. 3, in the spaced bars 10, 11 of a hook, next between two guiding-pins 16 positioned in selected perforations in bars 15, then between a flanged roller 18 and a padded roller 19 slidably mounted on respective spindles 17, 20 and next around the bars 25 of a tension device including discs 23, 24 interconnected by bars, a spring- controlled plunger 27 being caused to engage one of several perforations in the disc 3. The warp threads finally pass around the beam 28 to the healds. The bars 10 are fixed but the bars 11 are carried by members slidable in brackets 12 when it is desired to form a lease. The roller 19 is pressed against the roller 18 by springs.
Patent GB-429300-A (GB)
Title: Means for supporting and facilitating the movement of drawers or trays in furniture
IPC: A47B88/493
Filed: 1934-02-08
Abstract: 429,300. Drawer fittings. KAY, E. F., 120, Castle Street, Edgeley, Stockport, Cheshire. Feb. 8, 1934, Nos. 4127 and 7343. [Class 52 (i)] Drawer runners b, c co-operating with rollers e, b<4> are provided at their ends with recesses b<x>, c<x> which allow the rollers to go out of action when the drawer is closed so that the runners or rails are then in direct engagement.
Patent GB-622703-A (GB)
Title: Improvements in or relating to soldering
IPC: B23K35/14
Filed: 1947-02-13
Abstract: 622,703. Soldering. STANDARD TELEPHONES & CABLES, Ltd., and ROBINSON, G. B. Feb. 13, 1947, No. 4183. [Class 83 (iv)] Soldering is effected with a solder having a core or strand of high permeability metal such as iron by heating by induced high-frequency current, whereby the solder and waste parts. are heated to the melting point of the solder. Flux may be applied separately or as a core or strand of the solder. The iron, which has a small crosssection relatively to that of the solder, may be applied as a central core 2, surrounded by a flux core 3, the solder stick 1 being made by extrusion, moulding, &c. The iron core may be tinned or plated to make it adhere to the solder during the soldering operation. The iron core may be arranged parallel to the flux core and be contained within or project from the solder. Soldering is effected by applying the solder stick to a surface or joint of ferrous or non-ferrous metal and using a high-frequency coil to heat the high permeability metal so as to melt the solder resulting in a stronger joint on account of solidarity thereof and the reinforcing action of the iron wire. With large diameter solder, a number of cores of iron or like metal may be used and also a number of cores of flux.
Patent GB-695046-A (GB)
Title: Improvements in or relating to tobacco smoke filters
IPC: A24D3/12
Filed: 1951-02-21
Abstract: Organic cation exchange material in the hydrogen exchanging condition, with or without anion exchange material, is used to filter tobacco smoke.  The cation exchange material may comprise an acid-regenerable water-insoluble synthetic resin, containing either sulphuric or carboxylic groups or both, e.g. of the phenol formaldehyde, polystyrene or polyvinyl type.  Sulphonated coal may also be used.  The anion exchange material may be a m-phenylenediamine formaldehyde resin, one of the products made by the oxidation of aniline, or one of the more highly basic guanidine resins or resins containing active quaternary ammonium groups.  Both types of exchange material may be used in granular form, alone or mixed with particles of inert or other substances; or may be ground up and deposited on a porous carrier such as silica gel, crinkled paper, paper plugs, cork or tobacco, or, in the form of a slurry subsequently dried, on layers of fabric or paper.  A mixture of the material with pulp or paper fibres may be dried to produce a light fluffy filtering medium.  Extruded material in the form of fibres or porous plugs may also be used. The resultant filters may be incorporated in pipe stems or cigar or cigarette holders integrally or as removable cartridges or may form built-in filter tips for cigars and cigarettes.  The filters may be discarded after use or the cation exchange material may be regenerated by soaking in a dilute acid solution, followed by air or force drying, whilst the anion exchange material, if present, may be regenerated with an alkaline solution.
Patent GB-1121745-A (GB)
Title: Process for the manufacture of water-insoluble anthraquinone dyestuffs
IPC: C09B1/515
Filed: 1967-01-27
Abstract: Compounds of the formula <FORM:1121745/C4-C5/1> where one A is hydroxyalkyl or acyloxyalkyl and the other is hydroxyalkyl, acyloxyalkyl or hydrogen and R is an aryl residue containing at least one hydroxy, alkoxy, phenoxy or acyloxy group ortho or para to the anthraquinonyl residue are prepared by treating a compound of the formula <FORM:1121745/C4-C5/2> with a desulphonating agent, e.g. sodium dithionite. The reaction may be carried out in an aqueous base, e.g. pyridine.  The sulphonated compound may be prepared by treating a compound of the formula <FORM:1121745/C4-C5/3> with a hydroxyalkylating agent followed by reaction with an acylating agent.
Patent GB-935513-A (GB)
Title: Improvements relating to anti-dazzle visors for use on vehicles
Inventor: RINALDI TINO BATTISTA GUISEPPE
IPC: B60J3/02
Filed: 1961-02-04
Abstract: 935,513. Anti-dazzle visors. PLASTMANT Ltd. Jan. 29, 1962 [Feb. 4, 1961], No.4300/61. Class 103(2). An anti-dazzle visor comprises a looped frame having one side 10, Fig. 1, pivotally and slidably mounted in a bracket 16 securable in a vehicle, a bracing strut 14 and on opposite side 12 pivotally carrying, for independent rotation, a pair of transparent or translucent panels 23, 24, Fig. 3, the panels substantially filling the space between the strut 14 and side 12 and the sides 11 of the looped frame. The looped frame is made of tubular metal and the bent ends 12 at the lower side receive a rod 13. The panel 23 is clamped at each end by a pair of hinge plates 28 to the rod 13, each plate making a pair of line contacts with the rod 13. The panel 24 is clamped by a single pair of hinge plates 27 to the rod 13 the plates 27 being disposed between the pairs of hinge plates 28. Referring to Fig. 2 the bracket 16 comprises clamp plates 17 receiving the loop side 10 and clampable by a screw 21, and a knot 19 engaging a threaded stud 18 integral with a fixing plate 20 securable at 22 to the vehicle. If desired the strut 14 may have further panels hinged thereto. Specification 923,696 is referred to.
Patent GB-216491-A (GB)
Title: Improvements in or relating to automatically adjustable pulleys
IPC: F16H55/54
Filed: 1924-02-19
Abstract: 216,491. Sleeper & Hartley, Inc., (Assignees of Sleeper, F. H.). May 25, 1923, [Convention date]. Expanding pulleys acting automatically to adjust the speed to the load have their rim sections projecting beyond the controlling cam discs. Tread segments 19 are carried by slides 18, which slide radially in grooves 15 in a disc 25 freely mounted on a shaft 10, and are thus constrained to move together. Each slide 18 carries a bowl 21 residing in an inclined slot 12 in a second disc 11 secured to the shaft. In a pulley A, Figs. 1, 2, and 4, adapted to be driven by the belt, the segments 19 are connected to the boss 13 of the disc 25 by tension springs 23. The belt tension, the reactions of the inclines 12, the spring tensions, and, in a minor degree, centrifugal forces react together to produce the automatic change. In a pulley B, Fig. 5, adapted to drive the belt, the springs 33 are arranged to act by compression. When a driving-pulley B and driven pulley A are used together with one belt, the belt tension is maintained by a jockey.