baber/WOPTO huggingface dataset:
Patent GB-860012-A (GB)
Title: Improvements relating to coal-getting machines
IPC: E21C27/12
Filed: 1959-06-09
Abstract: 860,012. Mineral-mining machines. MASCHINENFABRIK KORFMANN G.m.b.H. June 9, 1959 [June 9, 1958], No. 19709/59. Class 68(1). The cutter assembly of a mineral-mining machine comprises a cutter chain-carrying loop frame 7 for cutting out a block of mineral from the seam and one or more boring heads 8 positioned behind the frame for boring into and breaking up the block into pieces of a size that can be removed in a paddle conveyer 9 positioned behind the frame and below the head or heads. A conical breaker element 14 is provided on the shaft of some or all of the boring heads 8 together with pick-carrying, radially extending arms 13.
Patent GB-970165-A (GB)
Title: Continuous method for forming composite structures
Inventor: JENKINS RICHARD GEORGE CHRISTO
IPC: B26F1/40
Filed: 1961-06-01
Abstract: 970,165. Ornamenting. RESOURCES & FACILITIES CORPORATION (SUISSE) S.A. June 1, 1961, No. 19838/61. Heading B6G. Composite structures comprising a backing sheet and a metal plate bonded thereto are made by continuously feeding both plates and sheets each with a surface adjacent the other to a position at which the composite structures are formed in a forming operation carried out in two stages, not necessarily carried out in the order mentioned, the operation comprising (a) applying the plates to the sheets, cutting through the plates and into the sheets to cut from the plates shapes of predetermined design and (b) bonding the shapes to the sheets to leave waste portions of the plates free from the sheets. As shown in Fig. 1, a punch press comprises a bed 10 and a power driven head 11 which may be heated e.g. by electrical heating coils 14. Dies 15 and 40 are secured to the lower face of the head, die 15 being formed with wedge-shaped cutting edges arranged according to the shape of the design to be produced. The backing sheet 16 may be of plastic or fibrous material, either as single plates or as a continuous strip. The metal strip 19 is fed between the dies 15 and 40 and the backing sheet 16 and is moved in synchronism with the backing sheet. A heat and pressure-sensitive adhesive is previously coated on to the lower surface of the metal sheet 19 or on to the upper surface of the backing sheet 16. On operating the press, die 15 cuts through the metal strip which has been urged on to the backing sheet. The heated die 40 fixes a portion of the metal sheet on to the backing sheet in readiness for the cutting operation. In this case the heated cutter die serves to complete the curing of the adhesive. If the heated die follows the cutter, the stamped-out design is fixed to the sheet by the cutter die and the curing is completed by the flat-headed die 40. The metal sheet and backing may be fed parallel to or at right angles to each other. The cutter may be formed with a slightly rounded inner surface (Fig. 5) in order to accommodate material of the backing sheet which may be displaced and urged upwards by the action of the wedge-shaped cutters. This also clinches the cut out material on to the backing. The dies 15 and 40 are so formed that the waste portion of the sheet 19 does not come into contact with the heated material of the press head and is not attached to the backing sheet. Several modifications of dies are described. Specification 741,241 is referred to.
Patent GB-440552-A (GB)
Title: Improvements in or relating to reflex apparatus for use with cinematograph projectors for projecting still pictures
IPC: G03B15/08
Filed: 1935-07-11
Abstract: 440,552. Optical-projection apparatus. HANLET, J., 106, Rue Linnee, Brussels. July 11, 1935, No. 19859. [Class 97 (i)] Apparatus enabling still pictures to be projected with a kinematograph projector comprises a mirror 4 displaceable into the light beam to reflect it through a doubleconcave lens 6 to a second mirror 7 reflecting through a condenser 8 to the slide &c. The mirror 4 is pivotally mounted in a box 1 readily attachable to the projector and carrying frames 5, 10 supporting the lenses and mirror 7. The lens 6 is slidable on the frame 5, the lens 8 is plano-convex with the plane side to the slide &c., and the mirror 4 is rotatable into and from the beam by a lever 3.
Patent GB-693539-A (GB)
Title: Improvements in or relating to steering gear for power-driven vehicles
IPC: F16H25/12
Filed: 1951-08-23
Abstract: 693,539. Steering mechanism. ZAHNRADFABRIK FRIEDRICHSHAFEN AKT.-GES. Aug. 23, 1951 [Aug. 24, 1950], No. 19931/51. Class 80 (i). A steering spindle 1 has intersecting right and left hand threads engaged by segmental nuts 8, 9 which thus move steering levers 20, 21 in opposite directions. The nuts are mounted in a cylindrical bore 22 and have bores 18 engaged by spherical pins integral with arms 14 so that as the arms are rocked the nuts are turned about the spindle axis. The nuts form a journal for the spindle, axial movement of which is prevented by thrust discs.
Patent GB-293708-A (GB)
Title: Improvements in and relating to means for effecting the accurate or relative synchronism for working motors, for instance for driving paper making machines
IPC: H02P5/485
Filed: 1928-07-09
Abstract: 293,708. Akt.-Ges. Brown, Boveri, et Cie. July 8, 1927, [Convention date]. Speed-maintaining systems. - A number of motors b, which may drive sections of papermaking machinery a, are kept running at constant relative speeds by coupling each motor to a differential gear d having one element driven by an auxiliary motor f connected to the supply conductors in the same manner as its respective main motor. The motors f have tapped armature windings with slip-rings and synchronizing interconnections. The differential gears compensate for change of speed of any main motor relative to its respectively auxiliary motor, by acting on a field rheostat h. Instead of having tapped armatures, the motors f may be mechanically coupled to separate dynamo-electric machines provided with synchronizing interconnections. In another modification the auxiliary motors are alternating current machines fed from the working supply through rotary converting apparatus. In all the modifications the motors are supplied and controlled on the Ward Leonard principle by a generator c.
Patent GB-788816-A (GB)
Title: Turbine rotor disc assembly
IPC: F01D5/02
Filed: 1955-07-11
Abstract: 788,816. Turbine rotors. PURVIS, J. T., and KENNARD, E. July 11, 1955, No. 19983/55. Class 110 (3). [Also in Group XXIV] In a turbine rotor assembly for example for a gas turbine, a main shaft is mounted in a bearing on one side of the rotor disc and a stub shaft connected to the main shaft passes through a central aperture in the rotor disc and is formed with a flange which is drivingly connected with the side of the rotor disc remote from the bearing. The gas turbine rotor disc 4 shown in Fig. 2 is formed with a central aperture 4a and is connected to a main shaft 6 which is mounted in a bearing 9. A stub shaft 10 is secured within the end of the main shaft by means of a nut 13 and the stub shaft passes through the central aperture 4a in the rotor disc, a flange 11 on the stub shaft being disposed at the side of the rotor disc remote from the bearing 9. The flange 11 and disc 4 are formed with radial teeth 12 which interengage and transmit torque from the disc to the shaft. A shim 14 is provided at the end of the main shaft 6 and bears against the upstream face of the rotor disc around the central aperture therein. The shim may be provided with radial slots 15 through which cooling air may pass to the annular passage between the rotor disc aperture and the stub shaft and thence through spaces 12a between the teeth 12 to cool the downstream side of the rotor disc. In a second embodiment, Fig. 3, the downstream face of the rotor disc is formed with an annular flange 20 which engages between a pair of flanges 11a<SP>1</SP> formed on the flange 11<SP>1</SP> of the stub shaft, radial pins 17 passing through the three flanges to transmit torque. The pins are kept in position by means of ring members 18, 19. In a further embodiment similar to that of Fig. 2 a second rotor disc is provided downstream of the first, the second disc being drivingly connected to the downstream edge of the flange on the stub shaft by means of radial teeth similar to the teeth 12 on Fig. 2. The two rotor discs are interconnected by a number of axially-extending bolts.
Patent GB-1502555-A (GB)
Title: Test apparatus for pressurized container and method
IPC: G01M3/32
Filed: 1976-05-14
Abstract: 1502555 Pressure testing containers ALUMINUM CO OF AMERICA 14 May 1976 20035/76 Heading G1S Apparatus for pressure testing sealed containers 50, Fig. 1, such as capped bottles, comprises a hinged sided transparent plastics or metal container enclosure 6, a cap puncturing needle 10 projecting from a pedestal 2 provided with container liquid drainage holes 24, 26, pressurized air supply means connected to the needle, and a container retaining sleeve 80, Fig. 2, adjustably supported on a column 130 by means of a screw 138, Fig. 3. The container has its upward movement limited by a slidable but captive bolt 100 which must be slid across into position before the enclosure can be shut and a cylinder 40 is provided with a locking piston 42 which prevents the side panel 6d opening when the container is pressurized. A pressure gauge 166 provides a direct readout of the internal pressure within the container and also a maximum reading, and a compressed air supply and operating circuit Fig. 4 (not shown) employs several safety devices and latches which prevent incorrect use of the apparatus. In operation, the enclosure is opened and the bolt 100 slid to one side so that a container 50 may be inserted and pushed downwardly on to the cap puncturing needle 10. The pin 100 is then slid across into a locking position and the sleeve 80 is moved to a position to give a top clearance D to the container which is less than the distance between the lower end of the container and the free end of the needle. The door 6d is then closed and a pressure regulator set for a desired upper limit. Pressure air is then passed through the needle into the container which if it does not burst is then relieved of the test pressure and removed.
Patent GB-1102784-A (GB)
Title: Printing plate mounting blocks
IPC: B41F27/12
Filed: 1965-05-13
Abstract: 1,102,784. Printing-surfaces. SCHNELLPRESSENFABRIK FRANKENTHAL ALBERT & CIE A.G. 13 May, 1965 [29 May, 1964], No. 20162/65. Heading B6C. A flexible printing plate 3 is clamped in position around a cylinder 1 by apparatus comprising a pair of semi-cylindrical mounting blocks 2 secured to the cylinder in the manner of conventional stereo plates, an adjustable bar 12 mounted by means of a tongue in a groove 13 in one end of one of the blocks and provided with a slot 14 adapted to be engaged by one end edge of the plate, and a row of hook-shaped pivoted members 4 adapted to be engaged by the other end of the plate. Each member 4 is biased clockwise by a spring 8 via a pressure member 9, and by tightening screws 11 a bar 10 is arranged to rotate the members 4 against spring pressure to release the plate. The bar 12 may be forced away from its block 2 locally by screws 15; further screws, Fig. 2 (not shown), ensure that the bar does not fall out of the block.
Patent GB-775948-A (GB)
Title: Production of endo-dextranase by an aspergillus mold
Inventor: CARLSON VIRGINIA WHITESIDE
IPC: C12N9/46
Filed: 1955-07-12
Abstract: A filtrate containing dextranase having the capacity to attack glucosidic linkages of large dextran molecules to thereby split the large molecules into relatively low molecular weight segments is obtained by inoculating an Aspergillus mould in an aqueous nutrient medium comprising dissolved metallic salts and, per litre of water, 2.0 to 5.0 grms. of amino acids or protein sources of amino acids, 5.0 to 50 grms. of dextran as the sole carbohydrate, incubating at a pH of 7 to 7.5 and separating the dextranose from the mat mould by filtration.  The metallic salts are preferably present in quantities of 2.0 to 5.0 grms. per litre.  The amino acids may be in the form of peptone or protein hydrolysates such as casein hydrolysate.  The nutrient medium preferably also contains vitamins of the B complex, e.g. in the form of yeast extract, and in concentrations of 2.5 to 5.0 mg. per litre.  The temperature is room temperature and the duration of incubation may be 80 hours.  Specified Aspergilli are A. usutus, A. candidus, A. niger, A. tamaric, A. flarus-oryzal and A. Wentii, which is preferred.  A preferred nutrient medium consists of an aqueous solution of peptone, dextran, magnesium sulphate, sodium chloride, ferrous sulphate, manganese sulphate, potassium hydrogen phosphate, sodium acetate, potassium acetate, nicotinic acid, riboflavin, thiamine, calcium pantothenate, pyridoxine, folic acid and biotin.  The dextranase may be recovered from the filtrate as a white powder by precipitation with organic solvents such as acetone, alcohols and dioxane or by salting out with an inorganic salt such as ammonium sulphate, sodium sulphate or sodium chloride followed by dialysis to remove extraneous salts.  A combination of these steps is preferred.ALSO:An aspergillus mould is cultivated in an aqueous nutrient medium at a pH of 7 to 7.5 in order to produce dextranase, the said medium comprising dissolved metallic salts, and, per litre of water, 2.0 to 5.0 grms. of amino or protein sources of amino acids, and 5.0 to 50 grms of dextran as the sole carbohydrate. The metallic salts are preferably employed in quantities of 2.0 to 5.0 grms per litre.  The amino acids may be in the form of peptone or protein hydrolysates sluch as casein hydrolypate.  The nutrient medium preferably also contains vitamins of the B complex e.g. yeast extract, and in concentrations of 2.5 to 5.0 mg per litre. The incubation temperature is that of the room and the duration is 80 hours.  Specified aspergilli are A usutus, A candidus, A niger, A tamaric, A flarasorizal and A wentii.  A prepared medium consists of an aqueous solution of peptone, dextran, magnesium sulphate, sodium chloride, ferrous sulphate, managanese sulphate, potassium hydrogen phosphate, sodium acetate, potassium acetate, nicotinic acid, riboflavin, thiamine, calcium pantothenate, pyridoxine, folic acid and biotin.
Patent GB-202075-A (GB)
IPC: G03C9/00
Abstract: 202,075. Scholz, P. J. A., and Woehler, C. W. May 20, 1922. ELectrotype; stereotype.-Matrix material for the production of stereotype or electrotype printing-surfaces consists of an ordinary stereotype flong or other plane and. preferably flexible foundation coated with an aqueous mixture of gypsum and glue with whiting or zinc white, or both, to which mixture is added a quantity of mineral oil, preferably a lubricating-oil, to render the coating flexible. The matrix is formed by cutting away the coating in the desired places down to the foundation. Additional coating material may be applied to certain of the remaining parts to increase the depth of the hollows of the printing-plate produced from the matrix. A screen-like design may be produced on any desired part of the printing plate by passing a roller, consisting of closely disposed circular knives, twice, crosswise, over the corresponding part of the coating on the matrix. In making an electrotype from the matrix, the latter is provided, by immersion or otherwise, with a coating of wax, which is afterwards dusted with graphite.
Patent GB-882007-A (GB)
Title: Nursing nipples
IPC: A61J11/02
Filed: 1960-06-09
Abstract: 882,007. Babies' feeding appliances. WORTHINGTON, J. V. (Davol Rubber Co.). June 9, 1960, No. 20228/60. Class 66. A teat for a baby's feeding bottle has external fluting 21, which enables small quantities of air to enter the baby's mouth during feeding and an air vent 23 extending through a flange 15 from an external pocket 24 in the teat wall for preventing the formation of vacuum in the bottle during feeding. The teat wall is strengthened by internal bosses or ribs, Fig. 2 (not shown). The flange 15 may have a thinner diaphragm portion in the region of the vent 23, Fig. 1A (not shown).
Patent GB-387240-A (GB)
Title: Improvements in or relating to television and like receivers
IPC: H04N3/32
Filed: 1932-07-18
Abstract: 387,240. Television receivers. TELEFUNKEN GES. FR DRAHTLOSE TELEGRAPHIE, 12, Hallesches Ufer, Berlin July 18, 1932, No. 20291. Convention date, July 18, 1931. [Class 40 (iii).] In a cathode-ray receiver, a switch 11 is so arranged that either the cathode ray may be modulated in intensity and deflected by constant frequency potentials applied to the condenser plates 5, 6, or the cathode ray may be of constant intensity and deflected by potentials modulated in frequency by the picture signals so that either type of signal may be received. In the position shown, received signals applied at 10 control the intensity of the cathode rays and the generators 12, 13 (preferably comprising a neon lamp in parallel with a condenser) emit a constant frequency. In the lower position of the switch, the battery 9 biases the Wehnelt cylinder 3 and a cathode ray of constant intensity is emitted, while the frequencies of the generators 12, 13 are controlled by the signals applied at 10.
Patent GB-1434478-A (GB)
Title: Permeable membranes and their preparation
IPC: B01D69/12
Filed: 1974-05-08
Abstract: 1434478 Para-xylylene membranes UNION CARBIDE CORP 8 May 1974 20358/74 Heading B5B [Also in Divisions B2 and C3] Linear poly-para-xylylene polymer membranes are formed by generating vapours of the diradical precursors of the polymer combining the vapours with at least one filler material which will not polymerize on being condensed such that 5-95% by wt. of the combined vapours is the vapour of the filler material, condensing the combined vapours to form a filled membrane and removing the filler material. The filler material may be the cyclic dimers of the polymer or may be an optionally substituted hydrocarbon compound or a silicone oil and the fillers may be removed by solvent extraction or evaporation. The membrane may be in the form of a composite film comprising a microporous layer between two layers of unfilled polymer.
Patent GB-911606-A (GB)
Title: Improvements in or relating to implements for laterally displacing crop lying on theground
IPC: A01D78/00
Filed: 1959-03-18
Abstract: The subject-matter of this Specification is included in that of Specification 911,605 but the claims differ.  Specification 911,607 also is referred to.
Patent GB-576410-A (GB)
Title: Improvements in drums for ball mills, pebble mills and like machines
IPC: B02C17/22
Filed: 1944-10-20
Abstract: 576,410. Mixing &c. drums. WILKINSON RUBBER LINATEX Ltd., and McINTYRE, F. Oct. 20, 1944. No. 20386. [Classes 59 and 86] The drum of a pebble mill, mixer &c. comprises a tubular rubber body mounted in compression on embedded rods which connect the end plates of the drum ; the rubber body is constituted by rings. As shown the rings 10, together with metal spacers 16, are mounted on rods 11 connecting the end plates 13, the structure being braced by wires 20. The end plates are furnished with rubber linings 23 bonded to the metal by a ply of fabric 24 and burred washers 25 and bolts 26. The inner surface of the drum is waved, the thickened parts coinciding with the rods 11. A loading aperture is formed by a metal frame 29 secured to the cut-away ends of a rod 111 and fitted with an internal rubber lining 31. The cover 33 has a three-ply lining 34 and is held down by bolts 32. In a modification, the bracing wires are replaced by tapering metal plates. Specifications 437,928 and 550,481, [both in Group V], are referred to.
Patent GB-369842-A (GB)
Title: Improvements in or relating to the removal of tar from coal distillation gases
IPC: C10K1/04
Filed: 1931-07-16
Abstract: 369,842. Gas condensing processes. OTTO & CO. GES. DR. C., 9, Christstrasse, Bochum, Germany. July 16, 1931, No. 20424. Convention date, July 25, 1930. [Class 55 (ii).] Distillation products drawn off from ducts formed in the interior of a charge of coal are subjected to tar separating processes whereby only those tar fractions of which the specific gravity is not substantially less than that of water are removed. The tar may be separated by injecting tar at a temperature above the dew point, or by passing it through a strong electric field of uniform potential.
Patent GB-301523-A (GB)
Title: Improvements in the production of esters
IPC: C07C69/14
Filed: 1927-08-03
Abstract: 301,523. Imperial Chemical Industries, Ltd., and Horsley, G. F. Aug. 3, 1927. Esters. - In a continuous process for producing esters by reaction of an alcohol and an acid, in which the ester is removed in the form of vapour of an azeotropic mixture of ester, alcohol, and water, water and in some cases ester is added to the reacting mixture to facilitate the formation of the azeotropic mixture. A catalyst such as phosphoric acid may be added to the reacting mixture. On condensation, the azeotropic mixture forms into two layers, which are preferably separated at a high temperature. A part of the aqueous layer may, before or after distillation to separate alcohol and ester, be added to the reacting mixture. The ester layer is boiled to separate first a ternary mixture of ester, alcohol and water, and then a binary mixture of ester and alcohol. As applied to a continuous process for forming isobutyl acetate, isobutyl alcohol, acetic acid and water are supplied continuously from vessels 1, 2, 3 to a boiler 5 containing a quantity of alcohol. The vapours pass upwards through a dephlegmator 6 maintained by a jacket 20 at the top at the boiling- point (87‹ C.) of the azeotropic mixture. The escaping vapours pass to a condenser 7 and the condensate separates into two layers in the vessel 8. The upper layer is passed into a column 21 surmounting a boiler 22 and maintained at the top by a jacket 24 at the boiling-point of the azeotropic mixture. Vapours pass to a condenser 23, and the condensate to the vessel 8. A mixture of ester and alcohol collects in the boiler 22, and is passed into a column 25 surmounting a boiler 26, and maintained at the top of the boiling-point (about 107‹ C.) of the binary mixture of alcohol and ester. Pure ester is drawn from the boiler 26, and the vapours of the binary mixture from the top of the column are condensed and returned to the boiler 5. The lower aqueous layer from the vessel 8 is passed into a column 29 surmounting a boiler 30. Water is withdrawn from the boiler and vapours containing alcohol and ester from the top of the column are condensed and returned to the boiler 5. Specifications 195,117 and 234,458 are referred to.
Patent GB-998937-A (GB)
Title: Improvements in and relating to a process for the electrodeposition of a coating
Inventor: GUY VICTOR HAROLD
IPC: C25D13/22
Filed: 1963-05-22
Abstract: In a process for the electrophoretic deposition of a coating, the applied potential is controlled in accordance with the temperature of the coating media, e.g. a water soluble alkyd resin pigmented with a red oxide, i.e. the potential may be progressively lowered as the temperature of the media increases.