baber/WOPTO huggingface dataset:
Patent GB-1433574-A (GB)
Title: Bis-coumarins
IPC: C08K5/34
Filed: 1974-07-10
Abstract: 1433574 Bis-coumarin derivatives BAYER AG 10 July 1974 [11 July 1973] 30510/74 Heading C2C Novel bis-coumarin derivatives of the formula wherein R 1  is aralkyl, alkyl or aryl; R 2  is hydrogen, cyano, carboxylic acid or ester, carbonamide, acylamino, alkoxy, or R 1 ; or R 1  and R 2  together denote a fused hydroaromatic or aromatic ring; R 3  is hydrogen, halogen, alkyl or aryl; R 4  is hydrogen, alkyl or aryl; R 5  is halogen or alkyl; X is a direct bond or a bridge member; n is 0 or 1 and m is 0, 1 or 2, are prepared by either (i) condensing 2 mols of a compound of the formula wherein Z is oxygen or NR 8 ; Y is hydrogen, (C 1 -C 4 ) alkyl or SO 2 R 9 ; R 8  is optionally substituted phenyl; R 9  is phenyl or dialkylamino, with 1 mol of a compound of the formula wherein W is carboxyl or cyano; (ii) triazolyzing a compound of the formula or (iii) oxidately cyclizing a compound of the formula wherein R 1 <SP>1</SP> and R 2 <SP>1</SP> together denote a fused aromatic ring. The novel compounds are useful as optical brightening agents.
Patent GB-737802-A (GB)
Title: Improvements in and relating to fan and motor unit assemblies
IPC: F04D17/16
Filed: 1952-12-02
Abstract: 737,802. Centrifugal fans. GENERAL ELECTRIC CO. Dec. 2, 1952 [Dec. 7, 1951], No. 30540/52. Class 110 (1). In a centrifugal fan in which the fan is mounted on the shaft of the electric driving motor, air drawn through the motor is fed to a fan inlet closely adjacent the motor and a shaft bearing, and a mounting for the bearing extends into the fan inlet opening with the bearing partially nested in the fan inlet, air entering the opening being directed towards the bearing. In the fan unit shown, which forms part of a suction cleaner, air enters through intake openings 10 in the motor housing 3 and passes through holes 30 in a plate 25 to the eye of the first stage impeller 33. A bearing 18, which is supported in a cup 27, is cooled by the incoming air, which is deflected towards it by a baffle 31. Preferably, the cup 27 is integral with the plate 25. The air outlet openings 17 may be formed in the end wall 16 of the fan housing 11 instead of in the side wall 15. A nut 38 and washer 37 for securing the impellers on the shaft may be recessed into the impeller 34 as shown. A flange 12 of the motor housing 3 carries the fan housing 11 and may be extended to a larger diameter to facilitate mounting of the unit.
Patent GB-305586-A (GB)
Abstract: 305,586. Soc. Anon. des Verreries de Chenee, Delhaise-Dethier. Feb. 7, 1928, [Convention date]. Drinking-vessels.-A tumbler or other drinking- vessel is formed at its upper end with a narrowed portion d, Fig. 1, or a, Fig. 4, such that the brim a is located inwardly of the outer surface of the vessel if such were extended, the contour in vertical cross-section of the narrowed portion being a curved line. Such construction prevents the vessel, when upset, from falling on the brim and, if the upper portion curves outwardly again to the brim a as at Fig. 1, a vessel when inserted in another does not press on the brim. A series of such curved parts as a, d, b, Fig. 1, may be provided if desired. The Specification as open to inspection under Sect. 91 (3) (a) comprises also a construction wherein the outer surface of the drinking vessel continues straight and parallel to the lower portion of the outer surface after narrowing to a smaller section. This subject-matter does not appear in the Specification as accepted.
Patent GB-346764-A (GB)
Title: Improvements in and relating to the protection of electric mercury-arc rectifiers
IPC: H02H7/12
Filed: 1929-10-10
Abstract: 346,764. Rectifying alternating currents. AKT.-GES. BROWN, BOVERI, ET CIE, Baden, Switzerland. Oct. 10, 1929, No. 30769. Convention date, Dec. 3, 1928. [Class 38 (ii).] Vapour apparatus, arrangements of.-In an arrangement for the selective protection of mercuryarc rectifiers working in parallel on a continuous current network and having a current transformer release for the circuit-breaker on the A.C. side of the feeding transformer, in addition to a releasing device for the circuit-breaker on the D.C. side a relay is provided which responds only to outgoing current, the contacts of this relay being arranged to short-circuit the current transformer providing the release current for the A.C. circuit-breaker. As shown in Fig. 1, parallel-connected rectifier-groups I, II, III, supplied through feeding transformers 2, have the associated rectifiers such as 1 provided with automatic circuit-breakers 3, 4 on the A.C. and D.C. sides the releasing coil 6 of the former, which operates with a time-lag, being fed from a current transformer 5 and the releasing coil 9 of the latter, which responds only to reverse-current in the D.C. circuit, being connected across a shunt 8. Also connected across this shunt is a relay 7 responsive to outgoing current and adapted when operated to short-circuit the secondary winding of the current transformer 5. When the rectifiers are working in parallel, if a reversal of current &c. occurs, for example in the rectifier 1 the reverse current on the D.C. side and the overload on the A.C. side will cause the opening of both interrupters 3, 4 on the affected rectifier as the corresponding relay 7 is not operated but owing to the operation of the relays 7 associated with the other rectifiers their current transformer 5 will be shortcircuited and their interrupters 3 made inoperative, while as no reverse-current is present in the sound rectifier units, currents on both D.C. and A.C. sides will be maintained. Thus only the faulty rectifier is isolated. If only one rectifier is supplying current, no reverse current can flow and although the feeder switches on the distribution circuit would operate in the case of a short-circuit, the rectifier would remain connected on both sides in view of the time-lag of the A.C. circuit-breaker and the fact that no reverse current is flowing on the D.C. side. In addition, the secondary of the corresponding current transformer 5 is shortcircuited by the outgoing-current relay 7 so that the release of the circuit-breaker 3 is definitely prevented. In a modification (Fig. 2, not shown) the releasing coils 6, 9 of the circuit-breakers 3, 4 are placed in series across the secondary winding of the current transformer 5 which is adapted to be short-circuited by the relay 7 in the manner described.
Patent GB-226813-A (GB)
Title: Improvements in and relating to electric relay systems
IPC: G01R23/02
Filed: 1924-12-22
Abstract: 226,813. British Thomson-Houston Co., Ltd., (Assignees of Stone, C. W.). Dec. 29, 1923, [Convention date]. Alternating-current relays.-A relay 3 is actuated by rectified current when alternating current of suitable frequency is supplied to the line 4. The rectifier comprises an evacuated vessel 7 containing a plate anode 9 and a filament cathode 8. and the latter is included in a tuned circuit which includes a condenser 10. a reactance coil 11 and thes econdary winding 12 of a condenser the primary 13 of which is connected across the line 4. When current of the requisite frequency passes through the line 4 the filament 8 is heated and sufficient current can then pass through a parallel circuit including the rectifier and the coil 3 for the relay to be actuated.
Patent GB-1532316-A (GB)
Title: Vehicle suspensions
IPC: B60G5/047
Filed: 1976-07-23
Abstract: 1532316 Tandem axle suspensions E R F Ltd 20 July 1977 [23 July 1976] 30773/76 Heading B7D In a centre bracket used in a multi-axle vehicle bogie including a bell crank lever, pivotally attached to the rear end of a foremost spring, and a fixed pivotal anchorage for the leading end of the rearmost spring, aligned locating means 40, 42 for the opposite ends of a spring pin P for the fixed anchorage are provided on an outrigger 30, fixed in relation to a trunnion 15, and on the trunnion respectively.
Patent GB-721077-A (GB)
Title: Improvements in or relating to instruments for the analysis of combustible gases
IPC: G01N25/32
Filed: 1952-12-05
Abstract: <PICT:0721077/III/1> Combustible constituents of a gas are determined by passing the gas mixed with air successively through two chambers 15, 16 preferably set in a solid block 1, the chambers being preheated by coils (not shown) to the same temperature which is higher than the ignition temperature of the constituent to be determined and may be below the ignition temperature of another constituent not to be determined.  Combustion occurring in the first chamber 15 causes a rise in temperature which is determined e.g. by a multiple thermo-couple, the junctions 12 of which are in thermal contact with the walls of the two chambers, or by resistance thermometers inside or outside the chambers.
Patent GB-1481406-A (GB)
Title: Furnaces
IPC: H05B3/03
Filed: 1974-08-30
Abstract: 1481406 Glass making furnace electrodes ELEMELT Ltd 30 Aug 1974 [29 June 1973] 30975/73 Heading H5H Electrodes of a glass making furnace are composed of tin dioxide and are formed in two or more portions arranged end to end with respective interfitting parts (14, 18, Fig. 1, not shown). Electrical connection is by bands, clamped around the electrode, or by split tubular connectors with expansion members, that fit in bores of the electrodes. Electrical contact may be improved between engaged surfaces by a conductive coating of tin oxide paste, silver or silver-copper alloy. Preferably the electrodes project upwards from the bottom of the furnace within 15 degrees of vertical. The electrodes may be of circular or rectangular cross-section.
Patent GB-669785-A (GB)
Title: Improvements in devices for superfinishing machined surfaces
Inventor: THERY CONSTANT ANDRE LEON
IPC: B24B35/00
Filed: 1949-12-02
Abstract: 669,785. Superfinishingmachined surfaces. SOC. NATIONALE D'ETUDE ET DE CONSTRUCTION DE MOTEURS D'AVIATION. Dec 2, 1949 [Dec. 14,1948], No.31053/49. Class 60. A- device for superfinishing machined surfaces comprises an abrasive member or lap carried on a resilient; arm secured to a reciprocating. driven slide, means being provided for adjusting the angular setting of the arm relatively to, the slide. The device comprises a generally vertical bed 1 made-of thick sheet which may have strengthening ribs ; the sheet 1 is secured to one .flange 8 of an angleiron by bolts 9 and elongated holes 10 permitting height adjustment of the sheet; the other flange 7 of the angle iron is secured, to a thick iron extension 2 by a bolt 4 having a head 4a received in a T-groove 5 in the. extension 2. The latter is held between the jaws 3, 3 of the carriage of a lathe. To the central part of member 1 is secured a U- shaped grooved; bar 11 with horizontal flanges; one end of a leaf spring 12 is secured to a slide moving inside the bar, and the free end of the spring, carries a superfinishing abrasive stone 13. The slide is in two parts ; one part 14 is guided inside grooved-bar 11 and held therein by fomr.sets of balls 15, and the other part 17 is secured to-part-14 by dowels 18 and nuts 19. The part 14 is secured, by screws 20, to a rod 21 having a transverse slot or groove 25 engaged by a finger 26 on a slide 27 adjustably secured in a diametral slot 28 of a plate 29 the shaft of which is secured to the shaft 31 of an air turbine 32 mounted .by collars 33 in the bed 1. The position of the slide 27 in the<SP> </SP>slot 28 is indicated by a. scale. The part 17 has T grooves 40.receiving the head of a bolt 41 by which the leaf spring 12 is secured; the apparatus can thus be set up to finish an external cylindrical surface 43, Fig. 1, of a work piece 44 mounted in the headstock of the lathe, or the internal surface, of the work or the annular end surface.  For lapping.the teeth of a gear 47, Fig. 8, the stone is replaced by a gear-shaped, lap. 13a. For superfinishing small members such as rollers, the roller 48, Fig. 9, is pressed by its own weight and by the pressure of the stone 13 against two rollers 49, 50 at least one of which rotates the work. The shaft of roller 50 rotates in a bed 51 hinged about the shaft of roller 49; the bed 51 is held in position during the superfinishing operation by a crutch 52 hinged to the bed at 53 and resting at 54 on the bed 55 of the lathe. When the operation is completed, crutch 52 is pivoted about hinge 53 and bed 51 is lowered; a finger 56 pivotally mounted at 57 in bed 51 and loaded by a counterweight 58 ejects the work piece 48 which rolls down incline 59.
Patent GB-841543-A (GB)
Title: Improvements in or relating to filing cabinets
IPC: A47B63/06
Filed: 1957-10-04
Abstract: 841,543. Cabinets; drawer selection. BREVETTI BERTELLO S. p. A. Oct. 4, 1957 [Oct. 15, 1956], No. 31087/57. Class 52(1) The drawers of a filing cabinet are mounted in a carrier frame 2 moved vertically by a worm screw 4 until a required drawer is level with a slide 42 which then automatically opens the drawer. The worm is rotated by an electric motor 6 controlled by cams 14, 15, formed of conducting material but having non-conducting strips 16 in their surfaces on which brushes 17 connected in the electric motor circuit bear, which are caused to rotate by the vertical motion of the carrier frame 2 until the non-conducting strips 16 are contacted by the bushes 17 when the motor is switched off. The cams are mounted on a shaft 12 provided at one end with a sprocket 13 connecting the shaft to a selector handle 9 which is rotated to determine the amount of cam surface over which the brush 17 moves before reaching the strip 16 and thus which drawer is opened, and at the other end a sprocket 25 connected with a toothed chain engaging along its length a fixed sprocket 29 on the drawer carrier. A second motor drives the drawer slides 46 through chain 34, shaft 36, sprocket 38 and chains 40 fixed to the side of the slides. A spring catch on the slide engages a projection on the drawer and the extent of the opening is governed by switches 46, 47. A switch 51 is provided for retraction of the drawer.
Patent GB-633209-A (GB)
Title: Coffee brewer
IPC: A47J31/043
Filed: 1947-11-24
Abstract: 633,209. Filters. RAMSEY, A. R. J. (Cory Corporation). Nov. 24, 1947, No. 31115. [Class 46] [Also in Group VI] In a vacuum type coffee maker, the filter element F is secured against removal by projections n formed in the stem 8 by heating the latter, with the filter element in position, and then deforming it by pressure. The element has limited longitudinal movement. The under surface of the valve disc portion 9 is stippled. Reference has been directed by the Comptroller to Specification 639,474, [Group VI].
Patent GB-211546-A (GB)
Title: Improvements in or relating to heat-insulated food receptacles
IPC: A47J41/02
Filed: 1922-11-14
Abstract: 211,546. Aladdin Industries, Ltd., (Bultman, C. E.). Nov. 14, 1922. Dishes.-A vessel particularly adapted for use as a serving dish comprises an inner container 2 for cooked food removably supported within an outer vessel 1 in such a manner as to provide a heat-insulating air space between them, a tight joint being formed between the receptacle and outer vessel either by a rubber or soft metal gasket 3, Fig. 2, or by the contacting surfaces of flanges, as shown in Fig. 4. A hollow lid 9 may rest upon a gasket 10, Fig. 2, or directly on the rim of the food vessel. An aperture 15 is provided in the wall of the inner vessel, and a valve 16 closable by a screw cap 17 is provided in the wall of the outer vessel. After the hot vessel 2 has been placed in the outer vessel and the valve has been closed, a partial vacuum is formed in the vessel and jacket, so that the lid and joint between the walls become sealed. The lid may then be removed only after the valve has been opened. The gasket 3 is seated in a groove in the rim of the outer vessel and held in position by a ring 6. It has a thin flexible part 8 making line contact with the wall of the food vessel. The lid gasket 10 has a thin flexible edge 12.
Patent GB-1431669-A (GB)
Title: Pre-combustion chamber internal combustion engines
IPC: F02F1/42
Filed: 1973-06-29
Abstract: 1431669 IC engine pre-combustion chambers HONDA GIKEN KOGYO KK 29 June 1973 [30 June 1972] 31174/73 Heading F1B A cup-shaped member 7 positioned in a cavity 6 has apertures 5' and 14 which form part of a flame passage 5 leading to the main combustion chamber 2 and align with a recess 13 receiving spark-plug electrodes 20, respectively. The member 7 is removable from the cavity 6 in the direction of its cylindrical axis and the angular position of the member is adjustable by a tool inserted into the aperture 14 through the spark-plug bore 11. A carburetter C 2  provides a richer mixture than a carburetter C 1 .
Patent GB-651119-A (GB)
Title: Improvements in and relating to semi-automatic power-operated screw presses, such asare used for making clay tiles and the like
IPC: B30B1/22
Filed: 1948-12-02
Abstract: 651,119. Machinery guards. BRITISH CERAMIC RESEARCH ASSOCIATION, GUTHRIE, P., and GOODSON, F. J. Dec. 2,1948, No. 31181. [Class 80(iv)] Both hands of an operator are required to release the starting and interlocking mechanism of a semi-automatic poweroperated screw press, which latter mechanism tends to prevent the working stroke. As shown, a press slide 10 is reciprocated by a screw 11 connected with a wheel 26 driven in either direction by wheels 24, 25 axially movable under the control of a lever 20 fixed to a shaft 30 and connected to a starting handle 50 by a rod 51. The interlocking means comprises a pin 13 having a conical head or collar 14 carried by the slide 10. When the press is at rest the head 14 is held within calliper jaws 38, which are opened to permit a working stroke of the press by a cam mechanism connected by a linkwork 41-43 to an interlocking handle 44 and loaded by a spring 40 to the closed position. Should the handle 44 not be operated when a working stroke is commenced by the starting handle 50, initial movement of the slide 10 carries with it the jaws 38 and hence a control rod 35 and a lever 31 also secured to the shaft 30, thereby reversing the direction of drive and returning the slide to its starting position. The Provisional Specification describes a converse construction in which flexible cable controlled jaws carried by the slide coact with an abutment carried by the press starting mechanism.
Patent GB-805849-A (GB)
Title: Improvements relating to electronic tone generators
Inventor: CHAMPION RONALD FREDERICK
IPC: H04B1/034
Filed: 1956-10-12
Abstract: 805,849. Distress-signal generators. SIEMENS EDISON SWAN Ltd. Sept. 26, 1957 [Oct. 12, 1956], No. 31193/56. Class 40 (1). A device for producing a distress signal in accordance with C.C.I.R. recommendation No. 125, that is two sine waves of frequencies 2.2 kc/s. and 1.3 kc/s. produced alternately for 250 m.secs. each, for repeated periods of between 30 and 60 seconds comprises a transistor oscillator 1, Fig. 1, switched from one frequency to the other by a relay contact Al controlled by a multivibrator 2, and a thermal relay B arranged, in conjunction with its contact B1, to apply power to the oscillator for repeated periods of between 30 and 60 seconds. In a modification (Fig. 2, not shown) each cycle of 30 to 60 seconds is initiated by depression of a push-button. A lamp LP (also in the modification) is lit during the period that the oscillator is operating.
Patent GB-660634-A (GB)
Title: Improvements in collapsable or knock-down wardrobes and the like
Inventor: COWE ARTHUR GEORGE
IPC: A47B88/00
Filed: 1947-05-22
Abstract: 660,634. Cabinets. LAWRENCE & CO., Ltd., W. May 12, 1948. [May 22, 1947] No. 31275/49. Divided out of 660,567. Class 52 (i). In a collapsable wardrobe or like structure the sides 36 and front walls 39, 40 are hinged together to fold flat when disassembled and the top 49 and bottom 34 are secured thereto when the parts are erected by means of metal-threaded screws 4 engaging tapped plugs 5, Fig. 2. Specification 660,567 is referred to.
Patent GB-1051351-A (GB)
IPC: C08G/
Filed: 1962-08-08
Abstract: 1,051,351. Tyre repair plugs. GOODYEAR TIRE & RUBBER CO. Aug. 8, 1963 [Sept. 17, 1962], No. 31298/63. Heading B7C. [Also in Division C3] A repair plug for a pneumatic tyre puncture comprises a polyurethane member having a cylindrical portion 2, and a tapered end portion 4 provided with a helical ridge 5 extending from the free end thereof through an intermediate portion 6 which connects the cylindrical and tapered portions 2, 4, the cylindrical portion being provided with wrenching means 3 to facilitate the screwing of the repair plug into a puncture. The plug may be reinforced by forming the helical ridge 5 from rubber-coated fabric 10, Fig. 3 (not shown). Alternatively a helix 12, Fig. 5 (not shown), may be positioned longitudinally within the rubber 13 of the plug. The plug and the inside of the puncture are coated with a lubricating cement.
Patent GB-520458-A (GB)
Title: Disposition of engines in aircraft
IPC: B64D27/00
Filed: 1938-10-31
Abstract: 520,458. Aircraft. BAYERISCHE MOTOREN WERKE AKT.-GES. Oct. 31, 1938, No. 31437. Convention date, Nov. 1, 1937. [Class 4] In a streamlined engine gondola or the like for aircraft, an air-cooled radial engine 2 is arranged behind the cabin 1 and drives a pusher screw 5 through a driving shaft 4 and reduction gear 3 located directly at the front of the screw. The reduction gear is preferably so arranged that the axis of the airscrew shaft 6 is located above that of the driving shaft 4.
Patent GB-1477782-A (GB)
Title: Electrolytic hydrodimerization of olefinic hydrocarbons
IPC: C25B3/29
Filed: 1975-07-28
Abstract: 1477782 Electrolytic hydrodimerization of olefinic compounds MONSANTO CO 28 July 1975 [15 Aug 1974] 31455/75 Addition to 1419155 Heading C2C [Also in Division C7] An olefinic compound R 2 C = CRX where X=-CN, -CONR 2  or COOR<SP>1</SP>, R<SP>1</SP> being C 1 -C 4  alkyl, and R being R<SP>1</SP> or H, is cathodically electro-hydrodimerized by electrolysing an aqueous solution containing #0À1 wt. per cent of said compound, #10<SP>-5</SP> mole/1. of monoquaternary phosphonium or multi-valent multiquaternary ammonium or phosphonium ions, #0À1 wt. per cent of a conductive salt, and an amount sufficient to inhibit H 2 -formation at the cathode of Y 2 N(ZYN) n R<SP>11</SP>COOM where Y=H, R<SP>11</SP>COOM, (CH 2 ) m+1 OH, or C 1 -C 20  alkyl, R<SP>11</SP> = (CH 2 ) m  or CHR<SP>111</SP>, R<SP>111</SP> being OH, COOM, (CH 2 ) m COOM, C 1 -C 8  alkyl, hydroxyalkyl or hydroxyphenyl, Z = divalent C 2 -C 6  hydrocarbon, M=H, NH 4  or alkali metal, m= 1, 2, n=0-4 and at least one Y-R<SP>11</SP>COOM or (CH 2 ) m+1 OH. The examples all relate to dimerizing acrylonitrile to adiponitrile, but other possible starting compounds are listed, as are suitable quaternary salts. Said conductive salt can be a quaternary phosphonium or ammonium phosphate, sulphate, alkylsulphate or arylsulphate, or a quaternaryphosphonium or -ammonium or alkali metal orthophosphate, borate, perchlorate, carbonate or sulphate, condensed borates and phosphates may be used. The electrolyte may contain an undissolved organic phase, e.g. containing said olefinic compound, plus its reaction product and by-products. The cell may have a cation permeable membrane, or diaphragm, or be undivided; the anode may be Pt, Ru, Ni, Pb, PbO 2 , Fe, steel or magnetite and the cathode Cd, Hg, Th, Pb, Zn, Mn, Sn or graphite; anodecathode spacing is 1-12À5 mm., the electrolyte velocity between the electrodes is #0À3 m./sec., the C.D. 0À01-1À5 A/cm.<SP>2</SP>, the temperature 5-75 C., the pH 2-11, and the pressure at or above atmospheric.