baber/WOPTO huggingface dataset:
Patent GB-263154-A (GB)
Title: Improvements in rectifiers for alternating currents employing liquid mercury
IPC: H02M1/30
Filed: 1926-12-14
Abstract: 263,154. Latour, A. Dec. 16, 1925, [Convention date]. Commutator switching-arrangements.-A rectifier for alternating current comprises sets of fixed commutators connected to the supply leads and co-operating with sets of synchronously rotated mercury jets forming collectors for the rectified current. The jets 23, Fig. 1, are arranged in two sets at 90‹ to each other and carried respectively on members 26, 27 secured to a shaft 16 divided into two parts separated by an insulating member 34. The members 26, 27 are provided with passages inclined in the direction of rotation so that during rotation mercury is withdrawn from receptacles 31, 32, forming the direct current terminals, along passages 36 to the jets 23. The commutators comprise sets of narrow segments 39, separated by distance pieces 45 and in electrical connection with sets of wide segments 38 separated by distance pieces 48. The narrow segments are arranged close to the jets so as to provide a short mercury stream through which the main current is conducted. The wide segments 38 are spaced further from the jets and are each followed by a set of conducting bars 47, Fig. 3, connected to each other by resistances of progressively increasing values to afford satisfactory commutation. In the example described, each commutator comprises twelve segments mounted on screwed rods 37 which receive current from the secondary side of a three to six phase transformer. The device is housed in a casing 3 which may be provided with observation windows and with a mercury seal 22 for retaining inert gas therein. The shaft 16 is coupled through a flexible disc 18 to a motor, preferably of the synchronously-operated non-synchronous type. To improve commutation at the rectifier, provision may be made for varying the position of the mercury jets with respect to the phase of the supply current with variations in load. This may be effected by supplying the stator winding S, Fig. 7, through chokes b the inductance of which is caused to vary according to the load on the rectifier by a winding d in the rectifier circuit arranged to control the saturation of the core c. Where an exciting winding is provided on the rotor of the motor, however, the same effect may be obtained by causing the exciting current supplied to the auxiliary commutator to vary in the same manner. Alternatively, the motor may be braked by means of a conducting disc mounted on its shaft and rotating in a magnetic field produced by a winding in the rectifier load circuit, or the disc may be mounted on the rectifier shaft, the latter then being coupled through a spring to the motor shaft.
Patent GB-259424-A (GB)
Title: Improvements in trunks or bags
IPC: A45C5/02
Filed: 1925-12-17
Abstract: 259,424. Hanman, F. Dec. 17, 1925. Lids; corner joints; battens, strengthening .-A trunk or bag of the kind made from fibre 1 covered with canvas 3 and reinforced bv woodwork 4 or metalwork is provided with a metal reinforcement 6 of channel section placed in the mouth of the trunk on the woodwork 4, its edge 7 being bent round a wire and the bend resting on the rim of the body. Another strip 9 of inverted U-section is placed over the upper edge of the woodwork 4 of the part 6, or, in an alternative, the parts 9 and 6 are made integral with each other. The corners are completed by a piece 12 fitting on the outside of the trunk and arranged to align with the part 6, and an inner piece 17 placed over a part 15 of the piece 12, the ends of the parts 9 being in some cases reduced as shown. The edge 2 of the lid fits in the groove of the part 6 and gives a waterproof joint which is not opened by warping. Specification 231,623 is referred to.
Patent GB-383423-A (GB)
Title: Improvements in and connected with casting fishing reels
IPC: A01K89/01
Filed: 1931-11-18
Abstract: 383,423. Fishing reels. O'REILLY, P., Mains of Picton, Dalry, Ayrshire. Nov. 18, 1931, No. 31924. [Class 48.] A line guide D is pivoted to a reel bracket A and can be swung outwardly so that its horizontal arm engages a pin G and locks the drum. The winding mechanism comprises a spindle J, large and small gear wheels M, N, and a gear wheel O. To change gear a spring-pressed arm S is disengaged from spindle recesses and the spindle moved in an axial direction. For left-hand operation the spindle J is reversed. The drum comprises two discs E, E<1> which can be pressed together to brake the line by a spring washer U. The amount of pressure exerted by the washer is indicated by a pointer V.
Patent GB-1049517-A (GB)
Title: Glass fibre production
IPC: C03B37/095
Filed: 1965-07-27
Abstract: A bushing for the production of glass fibres includes a glass contacting portion of an alloy containing from 10 to 50% by weight of gold. Preferably an alloy of gold and platinum is used.  The bushings may be wholly of the alloy or only the tips, the remainder being, for example, of Pt-Rh alloy, 90% Pt-10% Rh, to which the tips may be welded. For high strength glasses such as, in percentages by weight, SiO2 58.52; Al2O3 26.21; CaO 10.23; MgO 2.61; TiO2 2.43, forming temperature 2600-2700 DEG  F., the alloy contains 10-20% gold.  For "E" glass, SiO2 54.4; Al2O3 13.4; CaO 17.7; MgO 4.4; B2O3, 8.5, F2 0.2, Na2O 0.7, TiO2 0.5, Fe2O3, forming temperature about 2300 DEG F., the alloy contains less than 50, preferably 30% gold and for a glass SiO2 63.7; Na2O 13.5; B2O3 7.8; Al2O3 4.4; Fe2O3 0.1 TiO2 4.8; ZrO2 0.03; Fe 1.4; CaO 2.3; MgO 1.7; K2O 0.7, forming temperature 1950-2050 DEG  F., the alloy contains 50% gold.
Patent GB-359213-A (GB)
Title: Improvements relating to handles for attache cases and the like
IPC: A45C13/26
Filed: 1930-10-24
Abstract: 359,213. AttachÚ case &c. handles. HILL, W. J., 4, St. Paul's Square, Birming- ham. Oct. 24, 1930, No. 31942. [Class 133.] An attachÚ case or like handle comprises a leathercovered steel blade a having one or preferably each end slidable within a metal housing c which is itself hingedly connected to the article. The extremity c<1> of the housing is rolled to form a bearing for a hinge-pin e<1> engaging a rolled portion of an attachment plate e. The sliding of the handle end within the housing is controlled by a rivet pin d or other upward projection from the base of the housing engaging a slot a<1> formed in the end of the handle, or by a projection formed on the handle engaging a slot in the housing.
Patent GB-625137-A (GB)
Title: Improvements relating to pistons and cylinders
IPC: F16J9/08
Filed: 1946-10-28
Abstract: 625,137. Pistons. SULZER FRERES SOC. ANON. Oct. 28, 1946, No. 31968. Convention date, Nov. 22, 1945. [Class 122(i)] [Also in Group XXVII] An internal combustion engine piston carries a split sealing ring A, a flange of which extends axially towards the crown, and an inner ring B on the side remote from the crown to seal the split in the outer ring. The cylinder is also provided with a heat protecting ring 25 which lies in proximity to the sealing ring with the piston in its upper position. Specifications 290,153, [Class 7(ii)], 499,799 and 597,699, [both in Group XXVII], are referred to.
Patent GB-356549-A (GB)
Title: Improvements in or relating to clutches for the transmission of motion from a constantly rotating driving shaft to a belt pulley or like device
IPC: F16D13/18
Filed: 1930-10-24
Abstract: 356,549. Friction clutches. WOTTLE, H., 56, Fernkorngasse, Vienna. Oct. 24, 1930, No. 31970. Convention date, Jan. 16. [Class 80 (ii).] To eliminate standing and running friction in a clutch for periodically connecting a belt pulley 6 to a constantly rotating shaft 1, the pulley 6 when disengaged rests on a fixed extension 23 of the bearing sleeve of the shaft, and when engaged is lifted clear of the sleeve and carried by the radially moving segmental friction driving clutch shoes 4, 5. The shoes which are pivoted on an arm 3 keyed to the driving shaft, are expanded through compression springs 18, plungers 12, 13, toggle links 9, 10, 11 and a sliding sleeve 7 by an operating ring 19 which is relieved of friction in the engaged position by virtue of the toggle links passing their dead-centre whereafter the sleeve 7 abuts against the arm 3 and the clutch is held in by the springs 18. The plungers 12, 13, which press on the springs through end nuts 17, slide in collared guides 14, 15 in the shoes and have a pin-and-slot connection 16 therewith. A spring pawl 20 with an inclined end 21 snaps over a flange 2<1> in the disengaged position and prevents undesired engagement such as under the influence of centrifugal force.
Patent GB-248302-A (GB)
Title: Improvements in building structures consisting of assembled building blocks, in particular, for chimney construction
IPC: F23L17/02
Filed: 1924-09-22
Abstract: 248,302. Schwend, J. Sept. 22, 1924. Building blocks for chimneys, special shapes of. -The adjacent blocks of building structures, such as the foundation plates of chimney tops, are connected by means of a double hook joint so that relative lateral movement is prevented and adjacent blocks are supported by each other. The joint is formed by recesses and corresponding projections, which are of L-shape in horizontal section, and also in a section parallel to the face of the joint. Foundation plates for chimney tops comprise corner blocks b, Fig. 3, and intermediate blocks c, Fig. 5, the corner blocks having projections d, each provided with a clip k and lug e, and the intermediate blocks c having corresponding grooves m, n. Each recess in a block c has a slanting face o which engages below a slanting face on the underside of a projection d. The blocks are interlocked by an angular motion. The chimney top consists of slanting plates, having dovetailed ends engaging corresponding slanting grooves in the corner blocks.
Patent GB-355111-A (GB)
Title: Process for the production of triammonium phosphate from potassium phosphates
IPC: C01B25/40
Filed: 1930-10-27
Abstract: Tri-ammonium phosphate is obtained by saturating a solution of mono-, di- or tri-potassium phosphate with ammonia and at the same time adding sufficient carbon dioxide or ammonium carbonate to transform the potash liberated into potassium carbonate, whereupon the precipitated tri-ammonium phosphate is separated from the resulting ammoniacal solution of potassium carbonate. The tri-ammonium phosphate may be converted by heating into mono- or di-ammonium phosphate.  The filtrate may be concentrated for the recovery of potassium carbonate.  The ammonia may be employed in the gaseous form.
Patent GB-1242715-A (GB)
Title: Insulating polyester-amide-imide varnishes
IPC: H01B3/30
Filed: 1968-07-05
Abstract: 1,242,715. Polyester-amide-imide coatings. SUMITOMO ELECTRIC INDUSTRIES Ltd. 5 July, 1968 [5 July, 1967 (2)], No. 32304/68. Heading B2E. [Also in Division C3] Coatings are obtained from polyester-amideimides are prepared by condensing (i) a precondensate having an amide and an imide linkage in the chain prepared by condensing tricarboxylic anhydride with less than an equivalent of di- or poly-isocyanate; (ii) terephthalic or isophthalic acid or a C 1-7  alkyl ester thereof; and (iii) a diol and/or polyol. All three reactants may be reacted in solution or (ii) and (iii) may be reacted in the melt and (i) added before gelation occurs. Reactant (i) may be prepared in the presence of an inert liquid or gaseous organic non-solvent. Several reactants and solvents are mentioned. Solutions of the polymers may be used as insulating varnish for copper wires or iron plates and may contain conventional additives, e.g. Zn, Pb, or Sn octoate or Co napthenate as hardeners, tetrabutyl or -isopropyl titamin chelate as modifier, or 2,4-tolylene diisocyanate trimer as crosslinking agent. In Examples such varnishes are baked at 430 or 450C.
Patent GB-976439-A (GB)
Title: Emulsion paint compositions
Inventor: ANDREWS CHARLES WILFRED
IPC: C09D133/08
Filed: 1962-08-23
Abstract: Copolymer emulsion paints comprise an aqueous coating emulsion based on a copolymer of vinyl acetate or an alkyl acrylate with at least one other monomer, and an acetate of an aliphatic or alicyclic alcohol having not less than 5 carbon atoms in the molecule as coalescing agent. The paints may also comprise pigments, fillers and other conventional additives.  Examples describe paints comprising a vinyl acetateacrylic ester copolymer, methyl cellulose, sodium hexametaphosphate, titanium dioxide, blanc fixe and amyl, 2-ethyl butyl, 2-ethylhexyl, nonyl, tridecyl and methylcyclohexyl acetates.
Patent GB-1104956-A (GB)
Title: Fm demodulator system
IPC: H03D3/24
Filed: 1965-07-29
Abstract: 1,104,956. Frequency modulation receivers. HUGHES AIRCRAFT CO. 29 July, 1965 [29 July, 1964], No. 32458/65. Heading H3R. A frequency modulation receiver wherein an output of a phase detector 34 feeds a demodulator loop 40 controlling the frequency of a voltage-controlled oscillator 50 supplying one input to the detector, is characterized in that the phase detector output also feeds an automatic frequency control loop including a voltage-controlled oscillator 70 which supplies an input to mixer 14. Under normal conditions the demodulator loop includes a high-pass filter 44 and the A.F.C. loop includes a low-frequency narrow pass-band integrator 66. With weak input signals the ganged switches 60, 82 and 84 are operated to the opposite positions to those shown, thereby disconnecting the demodulator loop and modifying the unit 66 so that it acts as a filter which provides the lead term required for a stable loop. The output of mixer 14 is fed to the I.F. amplifier 32 through a selected one of a bank of narrow band filters 19.
Patent GB-861310-A (GB)
Title: A combined stool or seat and ironing board
Inventor: HOGG HAROLD
IPC: A47C12/02
Filed: 1958-10-13
Abstract: 861,310. Seats; ironing boards. SELUART ENGINEERING CO. Ltd. Oct. 12, 1959 [Oct. 13, 1958], No. 32546/58. Class 52(3). A seat convertible into an ironing board has a top b<SP>2</SP> carried by a horizontal frame b integral with a vertical frame c carrying the seat back c<SP>1</SP> and ironing board d. Pivots b<SP>1</SP> connecting the forward end of the frame b to a sub frame a enable the ironing board to be swung into a horizontal position in which it is held by a twopart centrally hinged, folding stay e. A frame carrying steps f, f<SP>1</SP> may be pivoted to the legs of the sub frame so that the steps may be swung inwardly when out of use.
Patent GB-799686-A (GB)
Title: Improvements in or relating to screw-threading tap devices
IPC: B23G1/16
Filed: 1955-11-16
Abstract: 799,686. Taps. NICOLAI, A. July 16, 1956 [Nov. 16, 1955], No. 32725/55. Class 83 (3). An adjustable tap comprises cutting or chasing elements 15 coupled to a rod 12 for progressively varying the diameter of the threads being cut, and an adjustable work-contacting member 37 coupled to the rod 12 and disengageable from the work for tapping cylindrical holes. The cutting elements 15 are interlocked with the tapered end 17 of the operating rod 12, which is drawn into the body 10 of the tool for taper-threading by progressive displacement of the ring 37 through contact with the work. The ring displaces its supporting collar 39 which bears on a lever 27 rotating a cam or an eccentric 13 about a shaft 26B bearing in the limbs 24, Fig. 2, of a member 22 held against a stop-shaft 19 by diagonally-opposite springs 25B in pockets in the limbs and bearing against studs 26 mounted on the end of the body 10 and passing freely through openings in a sliding member 20. The eccentric operates the member 20 through a member 21, of inverted U-shape, connected to the member 20 and slidable in the slot 23 between the limbs 24. A turnbuckle 31 connects the member 20 to the operating rod 12. The turnbuckle, engaging threads of different pitch on the member 20 and an adapter 35 which is keyed to the member 20 and engages screw threads on the rod 12, adjusts the initial position of the rod relatively to the member 20 and hence the initial diameter of the cutting elements. A further pair of diagonally opposite springs 25A in the limbs 24 act on the member 20 in opposition to the eccentric. For threading cylindrical bores, the ring 37 is re-positioned relatively to the collar 39 and the cutting elements 15 by its supporting rods 38 and screws screws 41 so that it is not progressively displaced by the work during the threading operation. At the end of a threading operation, the cutting elements 15 may be collapsed into radial passages in the head 10 by turning the stopshaft 19 through 90 degrees and allowing the springs 25B, acting on the studs 26, to withdraw the members 20, 22 and hence the rod 12. This may be effected automatically by an adjustable stop-rod 42, Fig. 7, carried by the collar 39 into engagement with a lug 29 on an operating sleeve for the shaft 19, the sleeve being recessed to receive a handle 29 on the shaft. When threading cylindrical holes, the lug 29 is rotated as the ring 37 contacts the work at the end of the tapping feed. The sleeve may be rotated out of operative engagement with the handle 28. Cylindrical holes with tapered ends may be tapped by suitably positioning the ring 37 relatively to the work. Two sets of cutting elements may be provided to enable two concentric holes to be tapped simultaneously.
Patent GB-986347-A (GB)
Title: Improvements in or relating to coal-cutting equipment
Inventor: SIMM GILBERT EDWARD
IPC: E21C29/16
Filed: 1962-08-25
Abstract: 986,347. Mineral-mining installations. G. E. SIMM (ENGINEERING) Ltd. Nov. 21, 1963 [Aug. 25, 1962], No. 32741/62. Heading E1F. In a coal-cutting machine comprising a horizontal shaft 14 rotatable in the machine and carrying a rotating or reciprocating cutter drum or disc 16, the shaft also carrying a coaxial driving rope pulley 20, there is provided a clutch having one member in driving connection with the pulley and the other with the shaft, a thrust member 33 responsive to relative axial movement between the clutch members, a variable hydraulic pump 37 driven from the pulley and an hydraulic motor 52 driven by the pump, and an hydraulic control responsive to movement of the member 33 to adjust the pump and thus regulate the rate of advance of the machine according to the resistance encountered by the cutters, the motor having an output shaft carrying a chain sprocket or rope pulley 54 for hauling the machine along the coal face. As shown the clutch comprises the thrust member 33, which is splined to the shaft 14, and male member 29 spring-urged from a female member 28 connected with a torque tube 27 which is in turn secured to the pulley 20, but is an alternative embodiment (not shown) the pulley 20 and cutter 16 themselves constitute the clutch members. The pulley 20 is driven by an electric motor 22.
Patent GB-276215-A (GB)
Title: Improvements relating to boilers, superheaters, feed water heaters and the like
IPC: F22G3/00
Filed: 1926-12-28
Abstract: 276,215. Galloways, Ltd., and Pilling, H. Dec. 28, 1926. Packing, metallic.-A tube a, Fig. 1, is attached to the header c of a boiler, superheater &c. by means of a jointing ring f of soft metal &c. which is positioned within a conical aperture e, but not to fill same, formed in a socket provided in the header, and is compressed by a gland b which screws into said socket. The tubes are further secured by nuts d which are screwed on to the ends thereof after jointing. The header is provided with removable caps g for inspection or cleaning purposes and also for the insertion and withdrawal of the tubes. In a modification, Fig. 6, the jointing socket is formed in a nut i screwed into the header, while in a further modification, Fig. 8, an externally and internally screwed gland, to serve the dual purpose of compressing the packing and retaining the tube in position, is used. Alternative forms of jointing ring are shown in Figs. 3, 4 and 5.
Patent GB-1462356-A (GB)
Title: Pharmaceutical compositions
IPC: A61K47/48
Filed: 1973-07-10
Abstract: 1462356 Antibiotic preparations BEECHAM GROUP Ltd 12 July 1974 [10 July 1973] 32833/73 Heading A5B Antibiotic particles comprise (a) 20-70 weight % of a semi-synthetic penicillin or cephalosporin containing a basic group absorbed on (b) 30-80% of pharmaceutially acceptable, benzene-insoluble, acidic cationexchange particles, which particles are resistant to enzmatic degradation, contain not more than 4% cross-linking and have a particle size between 20 and 250 microns. The antibiotic may be the phthalidyl or pivaloxymethyl ester of ampicillin. The resin may be a carboxylated polyacrylate or polymethacrylate or a sulphonylated polystyrene cross-linked with divinyl benzene. The particles may be combined with another beta-lactam antibiotic and an excipient. They may be mixed with water to provide a syrup or made into tablets.
Patent GB-1279506-A (GB)
Title: Colour electrophotographic process
IPC: G03G15/01
Filed: 1970-07-07
Abstract: 1279506 Electrophotographic member FUJI PHOTO FILM CO Ltd 7 July 1970 [8 July 1969] 32931/70 Heading H1K [Also in Division G2] A recording member comprises light-sensitized zinc oxide dispersed in a polyisocyanatemodified resin binder. The polyisocyanate may be tolylenediisocyanate/trimethylol propane and may modify a styrene-modified alkyd resin or a hydroxyvinyl polymer.
Patent GB-374777-A (GB)
Title: Improvements in and relating to the recovery of sulphur from gas purifying materials
IPC: C01B17/027
Filed: 1931-11-27
Abstract: Sulphur free from tar and other impurities is recovered from exhausted gas purifying materials, which are revivified by the operation, by distillation with expanded superheated steam under reduced pressure, formation of hydrogen sulphide from contained ferrous sulphide being prevented by the simultaneous passage of oxygen or air through the material.  Contamination with tarry matters is prevented by condensation by contact with warm water of such a temperature that only pure sulphur separates out, the impurities being condensed at a later stage.  In operation, expanded steam at 150-180 DEG  C. is passed through the waste material under a reduced pressure of 70 millimetres together with so much air that neither sulphuretted hydrogen nor sulphur dioxide is formed.  Distillation commences when a temperature of about 70 DEG  C. is attained, the operation being concluded at 110 DEG  C. after about 4 hours.  The mixture of sulphur vapour, steam and impurities is cooled by injection with warm water at about 47 DEG  C., sulphur separating out and the impurities passing on.