baber/WOPTO huggingface dataset:
Patent GB-732755-A (GB)
Title: Improved methods of and moulds for casting rolls in chill moulds
IPC: B22D15/00
Filed: 1953-08-07
Abstract: 732,755. Casting processes. EISENWERKE MULKEIM-MEIDERICH AKT.-GES. Aug. 7, 1953 [Aug. 11, 1952; Sept. 9, 1952], No. 21875/53. Drawings to Specification. Class 83(1). When casting rolls in chill moulds the heat radiation of the mould is delayed by surrounding it with a jacket of material of low heat conductivity. In one embodiment the mould is allowed to cool freely for a time depending on the material being cast, until a predetermined temperature of its wall is reached, and then the heat radiation is restricted, the mould being enclosed by a jacket, for example of sheet metal, which may be filled with an insulating material such as coarse grained blasting grit. In a modification normal cooling of the mould is interrupted and the heat radiation is restricted for a period depending on the material and the diameter of the roll being cast and the mould then allowed to cool rapidly. The mould for this purpose is preferably surrounded by a jacket having closable discharge openings which, when the jacket is empty, cause a draught therethrough. When casting plate rolls and grooved rolls a layer of dry sand of a thickness of 2-3 mm. and 6- 12 mm. respectively is arranged on the inside surface of the mould.
Patent GB-698733-A (GB)
Title: Improvements in or relating to force integrating apparatus
Inventor: BARNES JEFFERY WALTON
IPC: G01P7/00
Filed: 1949-08-23
Abstract: 698,733. Gyroscopes. NATIONAL RESEARCH DEVELOPMENT CORPORATION. Sept. 25, 1950 [Aug. 23, 1949], No. 21936/49. Class 97 (iii). [Also in Group XIX] A gyroscopic apparatus incorporates a force integrating apparatus which integrates the forces due to acceleration in a horizontal direction and applies to the gyroscope a precessional torque so as to precess the gyro at a rate proportional to the integral of acceleration acting in a predetermined direction. As shown, the force integrating apparatus (see Group XX) comprises a horizontally disposed spindle 7 parallel to the rotor axis 2 of the gyroscope, said spindle being rotated at a constant speed by a motor 14 and having slidable along it and in frictional engagement with it a block 10, 12 which is held against rotation with the spindle by a lateral extension 17 co-operating through an anti-friction wheel 19 with a flat surface 20a radial to the spindle 7 of an abutment member 20 secured to the shaft of the inner gimbal 3, the axis of which shaft lies in or parallel to the surface 20a. The extension 17 is counterbalanced about the spindle axis 7 by adjustable weights 23, 24 so that the torque exerted on the inner gimbal 3 is directly proportional to the time integral of the force along the spindle 7 due to acceleration causing the movement of the block. An anti-topple device for retaining the surface 20a parallel to the spindle 7 is included and comprises a wiper arm 25 rigidly attached to the inner gimbal 3 to move a contact 26 over a resistance 27 which supplies voltages corresponding to the relative positions of the inner and outer gimbals 3, 5 to an amplifier 28 by which a torque motor 29 is actuated to apply corresponding torques to the gimbal frame 5 to precess the gyroscope and reduce to zero the relative movement between the inner and outer gimbals. The device is applicable to the eightyfour minute or Schuler pendulum in which, after initial setting to the vertical, a torque proportional to the integral of horizontal acceleration (i.e. ground velocity) is applied to the inner gimbal axis so as to effect precession about the outer gimbal axis at a rate equal to the angular velocity over the earth's surface and thus maintain the gyroscope vertical. Specification 336,639, [Class 106 (iii)], is referred to.
Patent GB-229592-A (GB)
Title: Improvements in automatic firearms
IPC: F41A19/30
Filed: 1924-04-14
Abstract: 229,592. Marks, E. C. R., (Soc. Industrielle Suisse). April 14, 1924. Machine guns.-The trigger mechanism of an automatic gun of the short barrel-recoil type in which the breech-block is locked to the barrel before the completion of the forward movement thereof, is provided with adjustable mechanism whereby the gun can be fired automatically at any instant between the closing of the breech and the completion of the forward movement of the barrel. By this means the recoil may be modified. As shown, the sear 19 carried by the barrel extension 2, is, during automatic firing, operated by striking against a cam projection 24 carried by the forward end of a trigger rod 22. The extent of the trigger pull, and consequently tha position of the cam 24, are controlled by a cam lever 27 at the back of the trigger guard. Specificaton 214,978 is referred to.
Patent GB-193077-A (GB)
Title: Improvements in card indexing devices
IPC: B42F17/00
Filed: 1921-08-19
Abstract: 193,077. Wilkinson, A. W. Aug. 19, 1921. Drawings to Specification. Blotting-appliances.-Index cards are provided with an under surface of blotting-material.
Patent GB-241362-A (GB)
Title: Improvements in sheet metal hulls for flying boats
IPC: B64C35/00
Filed: 1924-09-19
Abstract: 241,362. Short, H. O. Sept. 19, 1924. Hulls; frames and framing.-An arrangement for framing hulls for flying boats comprises a number of annular transverse metal frames 1, and secured beneath each frame is a sheet metal diaphragm 6 the lower edges of which are at a suitable dihedral angle and extend on each side of a central keel 18. The lower edges of the diaphragms 6 are constructed with outwardly-extending concave curves and extending backwards to the frames 1 in reverse curves 10 which conjoin with the annular frames 1 somewhat below the level of the centres of the same. The sheet metal plating 4 is carried round the whole of the outside of the frames 1 and also outside the diaphragms, whereby a double-bottom is provided, the plates overlap on the frames and diaphragms. The outward extensions of the frames 6 are provided with rubbing-pieces of U-section. The frames 1 are built up of abutting hoops 2, 3 of angle section between which is riveted an annular stiffening ring 5. Further angles are riveted to the lower portions of the angles 2, 3 and diaphragms 6 are riveted between their abutting edges. The diaphragms terminate in flattened extensions to which the exterior plating is riveted.
Patent GB-668882-A (GB)
Title: Improvements in apparatus for shaping billets by rolling
IPC: B21H1/18
Filed: 1949-08-25
Abstract: 668,882. Rolling. WIGGIN & CO., Ltd., H., and WILSON, H. M. Aug. 3, 1950 [Aug. 25, 1949], No. 22153/49. Classes 83 (ii) and 83 (iv). A rolling mill comprising at least three rollers mounted symmetrically on parallel shafts to form a cage and formed with cam surfaces is characterized in that, to enable a billet to be rolled to dumb bell or mushroom shape in a single revolution of the rollers, the cage has a stop at its inner end to locate the billet inserted axially through the outer end, and the inner end of each roller is formed with a cylindrical part with which the billet makes contact during the reduction of the central or outer part of the billet, each cylindrical part having a depression to enable the billet to be withdrawn axially through the outer end of the cage at the end of the rolling operation. The rollers 2, 4 and 6 are mounted on shafts 8, 10 and 12 journalled in a housing comprising plates 15, 17, 19 and 21. Each shaft carries a pinion 16 meshing with internal teeth on a gear ring 18. External teeth on the ring mesh with a rack 20 which can be reciprocated with a stroke sufficient to turn the rollers through one revolution. The three rollers are identical and have a ridge 28 which extends circumferentially and increases in radius and width around the roller. In operation a heated billet is inserted through a hole 30 in the plate 15 until it engages a spring-loaded stop 32. The rollers are cut away at 33 to clear the tongs by which the billet is fed. The rack is operated and as the central part of the billet is reduced by the rolls the spring-loaded stop yields to take up the increased length of the billet. When the billet is for making a turbine blade one end is cut off leaving a mushroom-shaped piece of metal which is hot pressed to the final shape of the blade or the billet may be rolled with one head only. Two blanks for blades may be formed by cutting a double headed billet in halves. The ridges 28 may have coned outer surfaces for producing a tapered shape.
Patent GB-1165832-A (GB)
Title: Photographic Silver Halide Emulsions of the Print-Out Type
Inventor: BAYLIS JOHN HAROLD
IPC: G03F7/105
Filed: 1967-05-12
Abstract: 1,165,832. Photographic silver halide printout materials. ILFORD Ltd. May 6, 1968 [May 12, 1967], No.22191/67. Heading G2C. A photographic print-out silver bromide or chlorobromide emulsion is rendered more quickly photo-developable by the addition of from 0À2 to 30 mole per cent of iodine based on the silver halide present and sufficient of an aromatic sixmembered monocyclic or 10-membered dicyclic ring compound having at least one amino or hydroxy substituent to ensure that no free iodine is present in the emulsion, the additions being made separately and at a pH between 3À5 and 7À0. Aromatic compounds specified are phenol, resorcinol, #-naphthol, 8-hydroxyquinoline and aniline. The emulsion may also contain a tin, lead or cadmium salt, a bromide,' a mercapto-amino or mercapto-carboxylic acid compound such as thiomalic acid and a labile sulphur compound such as thiourea.
Patent GB-386699-A (GB)
Title: Improvements in or relating to casting moulds for stereotype plates
IPC: B41D3/02
Filed: 1931-08-05
Abstract: 386,699. Stereotype. HOE & CO., Ltd., R., 109, Borough Road, London.-(Hoe & Co., Inc., R.; 138th Street, New York, U.S.A.) Aug. 5, 1931, No. 22243. [Class 100 (ii).] In a device for casting stereotypes, particularly flat stereotypes, the cover of the mould is pivoted to the base and is adapted to be locked thereto for casting, and the base of the mould is locked in horizontal position except when the cover is closed. The base 15 of the mould is supported by side members 17 and is adjustable relatively thereto by screws 22 screwing into bars which connect the members 17 and pass through slots in the base 15. The sides and bottom of the mould are closed by bars 51, 52 which may be of variable thickness according to the desired thickness of the plate, the relative adjustment of the base and cover being effected by the screws 22. The cover 16 is pivoted on a shaft 24 secured in the members 17 and its weight is counterbalanced by a spring 54. The cover and base are adapted to be locked together for casting by hooks 32 carried by a shaft 33 actuated by a handle 35, the hooks engaging pins 34 on the base. A spring 36 engaging a cam surface on the handle 35 tends to hold the hooks in locking-position. Hooks 42, pivoted to the side frames 11 of the machine, are adapted to engage pins 47 on the members 17 when the mould is in horizontal position. One of the hooks 42 is weighted so as to move automatically to locking-position and is provided with a handle for manual release, but the other hook is spring-actuated to locking-position and is released only when the cover is in closed position by a pin 48 carried by the cover and adapted to engage a lug on the hook. When the mould is in horizontal position, the cover can be unlocked for removal of the cast plate or adjustment of the matrix and the mould is swung to vertical position for casting. It is guided by rollers 27 running on tracks 28 on the side frames 11 and a follower 30 carried by arms on the members 17 guided in slots 29 in the side frames. The rollers 27 are arranged near the centre of gravity of the mould so as to facilitate actuation. When the mould is in vertical casting- position, a pivoted catch 39 drops behind a pin 41 on the shaft 33 and prevents the opening of the mould.
Patent GB-1069481-A (GB)
Title: Pattern-controlled machine tools
Inventor: SWAFFIELD BRUCE
IPC: B23Q1/62
Filed: 1964-05-29
Abstract: 1,069,481. Copy-milling. PRECISION GRINDING Ltd. May 18, 1965 [May 29, 1964], No. 22253/64. Headings B3B and B3K. A copying machine comprises a manually-controlled linkage system 22, 24 for moving a tracer 15 and a tool 16 in three mutually perpendicular directions. The tool may be a milling-cutter rotated by an electric motor. Roller slides 14, 17, 21 are balanced by a spring and cam assembly and the linkage is balanced by a weight 28. Locking means for the slides are provided.
Patent GB-1342744-A (GB)
IPC: C12N1/32
Filed: 1970-12-08
Abstract: 1342744 Yeast AGENCY OF INDUSTRIAL SCIENCE AND TECHNOLOGY 8 Dec 1970 [12 Dec 1969 and 8 May 1970] 22374/73 Divided out of 1342743 Heading C6F The process for culturing methanolassimilable yeasts described and claimed in Specification 1342743 is applied also to two species of Candida designated N-16 and N-17, respectively.  Reference has. been directed by the Comt troller to Specification 1210770.
Patent GB-1345363-A (GB)
Title: Process for the preparation of zeolites
IPC: C10G47/16
Filed: 1971-04-19
Abstract: 1345363 Zeolite catalyst SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ NV 19 April 1971 [25 Feb 1970] 22394/71 Heading B1E [Also in Divisions Cl and C5] Catalysts -may be prepared by calcining a zeolite which has been loaded with at least one catalyst metal component from the Groups IB, IIB, VA, VIA, VIIA of the Mendeleef Table, particularly Pd and Pt, the zeolite having SiO 2 /Al 2 O 3  between 4 and 10 and containing tetraalkylammonium ions and at least two of Li<SP>+</SP>, Na<SP>+</SP> and K<SP>+</SP> and having been prepared by heating a mixture having the following compositions: a Na 2 O, b K 2 O, c Li 2 O, d R 2 O, Al 2 O 3 , e SiO 2 , f H 2 O where R= tetraalkylammonium  a+b+c+d=3.0-4.5 e=9.5-13.0, f=100-500 and where b or c but not both b and c may be zero. Examples describe the hydrocracking of a hydrocarbon mixture and the isomerization of n-hexane using platinum-containing catalysts.
Patent GB-317976-A (GB)
Title: Adjustable sliding plate or bed for dynamos or other belt-driven machines
IPC: F16M7/00
Filed: 1928-12-13
Abstract: 317,976. Chadwick, R. N. Dec. 13, 1928. Supports.-Dynamos are bolted to an intermediate base 12, which is slidable on the main base 5 and is adjusted by screws 13, 14 respectively secured to vertical walls 1, 3 of the base 12 and passing through removable and fixed flanges 2, 4 of the base 5. The driving-belt is tensioned by screwing up a nut 6 and slacking a nut 7, which may bear on a spring 8 for keeping the nut 6 tight. The base 12 has lips 10, 11 sliding under flanges of the base 5, slackness being prevented by clamping-screws e, f engaging slots e<1>, f<1>, through which lubricant may be supplied.
Patent GB-671225-A (GB)
Title: Improvements in or relating to machines for making expanded metal
Inventor: MUDD RICHARD
IPC: B21D31/04
Filed: 1949-08-29
Abstract: 671,225. Making expanded metal. EXPANDED METAL CO., Ltd. July 27, 1950 [Aug. 29, 1949], No. 22434/49. Class 83 (iv). Shearing.-In a machine for making expanded metal in which the sheet is intermittently fed between slitting knives by a gripper on a reciprocating tray, the return stroke of which is limited by adjustable stops, the travel of the tray is made selectively variable by the insertion of abutment members of variable thickness between the tray and at least one of the stops. In a machine in which the tray 1 is driven forwards by a member (not shown), and is returned against two micrometer stops 5 by springs 15, tapered or stepped abutment members 4 in guides 3 on the tray 1 are movable transversely by a lever 7 to any one of a number of positions. The lever 7 has a projecting pin 11 which engages a slide bar 6 interconnecting the members 4 and its position is shown by an indicator 7a on a quadrant 12. The members 4 may be moved in predetermined steps by automatic means driven from the machine. In a modification the abutment members 4 may be replaced by angularly adjustable cams with a stepped or curved profile and carried on the ends of the stops 5. The machine is stated to be suitable for making electrical resistance elements of expanded metal according to Specification 643,562, [Group XXXVI], in which the distance between the cuts is increased in stages near the unexpanded solid metal ends.
Patent GB-841094-A (GB)
Title: Etching baths and concentrates for making etching baths
IPC: C23F1/42
Filed: 1958-07-14
Abstract: 841,094. Etching. MERGENTHALER LINOTYPE CO July 14, 1958 [Jan. 27, 1958], No. 22483/58. Addition to 815,145. Class 100(2) To the etching baths described in the parent Specification there is added from 0À015 - 0À75% by weight of the nitric acid of an alkyl aryl sulphonate having the formula R-Ar-SO 3 M, where R is a hydrocarbon radical having 2-18 carbon atoms, Ar is an aromatic carbocyclic ring nucleus having 6 - 10 carbon atoms, and M is a hydrogen, alkali metal or organic amine cation. R may be a straight or branched chain aliphatic radical, or a cyclic radical. Examples are sodium dodecyl benzene sulphonate, sodium phenyl polypropylene sulphonate, sodium butyl naphthalene sulphonate, sodium xylene sulphonate, dibutyl phenyl phenol sodium disulphonate, monobutyl biphenyl sodium sulphonate, monobutyl phenyl phenol sodium sulphonate, monoethanolamine dodecyl benzene sulphonate. The preferred proportions are particularly 0À02 - 0À45%. The preferred concentration of nitric acid for etching magnesium and magnesium alloy plates is 7À5 - 13%, and for zinc plates 7À5-20%. Specifications 713;947, 717,710, 717,711, 717,712, 752,450 and 808,472 also are referred to.
Patent GB-445669-A (GB)
Title: Improvements in pistons of internal combustion engines
IPC: F02F3/02
Filed: 1935-08-09
Abstract: 445,669. Pistons. GAUSSE, A., 29, Avenue de Nancy, Metz, France. Aug. 9, 1935, Nos. 22490 and 22491. Convention dates, Aug. 10, 1934 and June 8, 1936. [Class 122 (i)] The piston head is of smaller diameter than and eccentric with respect to the skirt, the minimum thrust face 5 of which is separated from the head by a slot 12 and projects beyond the head to press on the cylinder wall and retain the face 2 in contact therewith. The skirt may be of oval form and thinner below the slot 12 than at the opposite face. The ends of the slot may extend below the bosses or into the gudgeon pin holes in which case the bosses are separated from the skirt below the slot 12 by slots 10.
Patent GB-1495274-A (GB)
Title: Fuel control system for gas turbine engine
IPC: F02C9/26
Filed: 1975-04-09
Abstract: 1495274 Gas turbine engine fuel systems LUCAS INDUSTRIES Ltd 9 April 1975 [21 May 1974] 22534/74 Heading F1G A gas turbine engine fuel system comprises a metering device 13 for regulating fuel flow from an engine-driven pump 11 to the engine 10, a control valve 14 downstream of the metering device and including a spring-biased control element 15 responsive to an increase in the preassure downstream of the metering device to open the control valve and responsive to an increase in a servo pressure signal to shut the control valve, a pilot valve 21 for controlling the servo pressure and a bi-stable electrical actuator 23 for the pilot valve, the actuator being responsive to first and second electrical signals respectively to cause the pilot valve to increase and decrease the servo pressure signal, and means for generating the first and second electrical signals respectively in response to requirements to stop and start the engine. The electrical signals may be short pulses. The control element 15 acts not only as a shut-off valve but also as a pressurizing valve upstream of light-up burners, a further pressurizing valve 27 being provided upstream of the main burners. An electronic control circuit 12 responsive to engine speed N and the position # of a power demand control controls the metering device 13, preferably via a stepper motor, feedback being provided by a position transducer; and it also generates the electrical signals for opening and closing the pilot valve 21. A spill valve 28 connected across the pump 11 is controlled by the pressure drop across the metering device 13 and the engine compressor intake pressure.
Patent GB-546136-A (GB)
Title: Dental instrument or device for the cleaning of teeth
IPC: A46B9/04
Filed: 1939-08-03
Abstract: 546,136. Tooth-cleaning devices. BJURHAGEN, L. Aug. 3, 1939, No. 22591. [Class 81 (ii)] A cleansing device for the teeth, comprises a body member in the form of a curved double channel which engages the teeth and gums in both upper and lower jaws. The upper and lower channels, which are joined only at their outer edges so as to leave a space between them have cross-sections which correspond in shape and depth at different points with the profiles of the teeth. The channel shaped members, which are made of rubber or other elastic material are preferably provided on their inner surface with projections or the like. By movement of the jaws as when chewing, the teeth are cleaned and the gums massaged when the device is held in the mouth. One modification which enables all the teeth to be cleaned simultaneously is shown in Fig. 1, and sections of the channels at points II and III are shown in Fig. 2 and Fig. 3 respectively. The upper and lower channels, provided with projections 3 and holes 7 are united at 4, the resulting space 5 serving for the introduction of rinsing liquid. A connection 8, Fig. 2, for attachment to a syringe or rubber ball may be fitted to enable the liquid to be injected into the space 5 and thence through holes 7 to the teeth. Another modification, which cleans the upper and lower teeth on one side of the mouth only, may be mounted on a handle. Bristles may be mounted on the inner surface of the channels.