baber/WOPTO huggingface dataset:
Patent GB-832557-A (GB)
Title: Improvements in or relating to rotor blades for gas turbines
Inventor: ENDRES JOHANN
IPC: F01D5/08
Filed: 1957-04-30
Abstract: 832,557. Gas turbine rotor blades. MESSERSCHMITT A.G. April 30, 1957, No. 13734/57. Class 110 (3). In a surface-cooled rotor blade for gas turbines, the blade is hollow, is made of porous material and either has or has not an encasing wall perforated with outlet openings, the blade having a radially-disposed fuel delivery duct inside the porous material and the porous material having a density which increases and a porosity which diminishes radially towards the tip of the blade. The object of the invention is to obtain a cooled blade as well as uniformity of fuel discharge over the entire blade surface. The blade shown in Fig. 1 comprises a core 2 of porous material having a conical-shaped convergent fuel supply duct 3 within, fuel being supplied to the duct 3 through a passage 10 in the rotor shaft 7. An outer perforated casing 5 is disposed around the porous core 2 so that in operation a cooling layer 6 is formed on the outer surface of the blade. In a second embodiment, the outer perforated casing is not provided. The conical shape of the fuel duct 3 provides varying thicknesses of porous material so that fuel under greater pressure due to increased centrifugal force towards the blade tip has to flow through a greater thickness of less porous material. The subsequent combustion of the fuel in the gas stream has an inter-stage reheat effect and provides an approximately isothermal combustion process. Specification 619,634 is referred to.
Patent GB-901030-A (GB)
Title: Improvements in or relating to refining apparatus for paper pulp and the like
IPC: D21D1/32
Filed: 1961-04-17
Abstract: 901,030. Refiners for paper pulp. JONES CORPORATION, E. D. April 17, 1961 [April 21, 1960], No. 13746/61. Class 96. A refiner for paper pulp has a rotor, e.g. mounted on a vertical shaft 9 and carrying vertical blades 7 on its periphery, and a stator formed of ribbed segments, e.g. each in two dovetailed sections, i.e. a ribbed working section secured to a base section with resilient spacers between adjoining base sections, the segments being urged inwardly towards the rotor by one or two annular tubes 16, inflated pneumatically or hydraulically through a valve 18 to a pressure indicated at 19 sufficient to force the ribs close to the blades, against the resilient pressure of the spacers. Pulp enters at 13 and after treatment leaves at 14.
Patent GB-829271-A (GB)
Title: Improvements in or relating to vulcanizing presses
IPC: B30B1/00
Filed: 1958-04-30
Abstract: 829,271. Vulcanizing presses for repairing rubber conveyer belts &c. PNEUMATIQUES & CAOUTCHOUC MANUFACTURE KLEBER-COLOMBES. April 30, 1958 [April 30, 1957], No. 13766/58. Class 87(2). A vulcanizing press, e.g. of a portable type for repairing rubber conveyer belts &c., comprises a pair of resilient presser plates 5, 6 located between interconnected frame members 1, 2, and pressure is applied to the material to be vulcanized between the plates 5, 6 by inflating a bladder 12 disposed between the plate 6 and the frame 2. The plates 5, . 6 are heated electrically by elements located in grooves 11. Alternatively the press may comprise a number of upper and lower frame members arranged end to end.
Patent GB-450040-A (GB)
Title: Improvements in or relating to gas-fired water heaters
IPC: F24H9/02
Filed: 1935-05-11
Abstract: 450,040. Heating water; casings. PARKINSON STOVE CO., Ltd., and ADAMS, R. K., Stechford, Birmingham. May 11, 1935, No. 13864. [Classes 64 (i) and 123 (ii)] A water heater is mounted on a wall by a casing a carrying the heater, burner and valves and having a detachable hook-on connection with a bracket g permanentlv secured to the wall, so that the casing may be lifted off after disconnecting water and gas pipes. The casing is cylindrical and is divided by an inclined plane into two parts a, b with meeting edges formed as co-operating flanges. A cowl f is screwed to arms m on the bracket g carrying studs n over which engage keyhole slots in the back of the casing. The bracket may form a skeleton frame. The upper part a of the casing is slotted and has spaced lugs q near the base resting on the wall. The lower part b is held in place by a screw engaging the burner. The upper part a, carrying a flue outlet d, may slide into a depending band on the cowl f, and be held by engagement of the slots in studs on a separate bracket on the wall.
Patent GB-1146503-A (GB)
Title: Transverse-flow blower
IPC: F04D17/04
Filed: 1966-03-30
Abstract: 1,146,503. Transverse-flow blowers. K. ZENKNER. March 30, 1966 [March 30, 1965], No. 14031/66. Heading F1C. In a transverse-flow blower the angle α, Fig. 1, is substantially less than 90 degrees and is preferably 30 to 60 degrees, the angle between walls 4 and 5 of wedge-shaped body 3 is 10 to 60 degrees, the angle y is between 5 and 60 degrees, and the angle # is less than 180 degrees. The body 3 is associated with a shroud 12 to define therewith a return-flow channel 13. The shroud or body may be rotatable to vary the flow crosssection at the discharge end of the channel 13. Alternatively, the flow cross-section at the inlet end of the channel 13 may be varied by a sluice gate (30), Fig. 7 (not shown). A number of shrouds may be associated with the body to define several return-flow channels, Fig. 3 (not shown). The body may be hollow and have openings in the wall 5 and slits in the wall 4 to provide a number of return-flow channels therethrough, Fig. 4 (not shown).
Patent GB-544487-A (GB)
Title: Improvements in or relating to machines for applying coatings of cement
IPC: A43D25/18
Filed: 1940-09-11
Abstract: 544,487. Coating sheet material with cement. UNITED SHOE MACHINERY CORPORATION. Sept. 11, 1940, No. 14065. Convention date, Sept. 11, 1939. [Class 95] A machine for applying a coating of cement to one side of unassembled parts of shoes composed of thin limp material, e.g. sock linings and heel covers, has two co-operating feed rollers 18, 20 so supported as to allow a work piece of greater width than the width of the rollers to pass therethrough, a cement-applying roller 12 and a pick-up roller 14 dipping within a receptacle 16. The shoe part contacts the applying roller 12 without being pressed against it by a member contacting with the opposite face of the part. The parts to be coated are moved by hand to the feed rollers 18, 20 from a platform 138, and a guiding device 128 having spaced fingers 132 lying within fluted portions of the feed roller 18 is provided for leading the parts from the feed rollers to the cementapplying roller 12. To strip the coated parts from the roller 12, a device is provided comprising a plate 220 having a scalloped edge 228, the scallops sloping downwardly towards the surface of the roller 12 so that cement deposited upon the device is returned to the roller. One feed roller 20 is supported so that it can be moved to vary the distance between the rollers to accommodate shoe parts of different thicknesses, and so that it can be tilted to position the rollers in parallel alignment. The pick-up roller 14 has pivot pins at its ends supported in bearings provided in plates secured to the ends of the cement receptacle, and cams 100 are provided for moving the receptacle so that the roller 14 is moved towards or away from the roller 12 to vary the quantity of cement supplied to the roller 12. The shaft 102 carrying the cams 100 is rotated by hand, and an indicating device and scale are provided to show the movement of the receptacle or thickness of the film of cement on the.roller 12. Means are provided for removing cement from the ends of the cement-applying and pick-up rollers, so as to divert the cement from the bearings, comprising a flat plate 232 having a spirally arranged flange 242. The end surfaces of the pick-up roller may be hollowed conically so as to co-operate with the spiral baffle.
Patent GB-845486-A (GB)
Title: Improvements in or relating to 2-diarylalkyl-3,4,5,6-tetrahydropyrimidines
Filed: 1958-05-02
Abstract: The invention comprises compounds of the general formula:- <FORM:0845486/IV(b)/1> wherein R1R2R3R4R5 and R6\h are each a hydrogen atom or an alkyl radical, Q is a hydrogen atom or an alkyl, benzoyl or alkanoyl radical; and Z is a C1-7 alkyl radical in which one hydrogen atom is replaced by a phenyl, alkylphenyl, a halophenyl radical and another by a phenyl, alkylphenyl, or halophenyl, or Z taken as a whole is a phenoxybenzyl, halophenoxybenzyl or tolyloxybenzyl radical, together with non-toxic acid addition salts thereof (other than 2-benzhydryl-3,4,5,6-tetrahydropyrimidine and non-toxic acid addition salts thereof).  The compounds of the invention may be prepared by condensing an amine of the general formula:  <FORM:0845486/IV(b)/2> with an acid, of the general formula:-  Z,COOH; the N (C1-7 alkyl) derivatives of the invention being also prepared from the corresponding compounds wherein Q is a hydrogen atom by heating with an alkyl halide, the product being isolated as an acid addition salt from which the base is prepared on alkalisation, and the N-acyl compounds from the corresponding hydro compounds by admixture with an acid chloride in the presence of a basic catalyst, such as pyridine.
Patent GB-1161045-A (GB)
Title: Method of making an insulated core building panel
Inventor: STAHL JOEL SAUL
IPC: B29C44/00
Filed: 1968-03-25
Abstract: 1,161,045. Moulding insulated building panels. J. S. STAHL. 25 March, 1968, No. 14168/68. Heading B5A. Thin building panels comprising a foamed resin layer faced with a solid layer of resin are made by applying a liquid resin to a first supporting film and heating the resin to partially cure it, repeating for a second supporting film, placing the coated films opposite each other in a press with the films outward, introducing a resin between and foaming it into contact with the coatings, heating to cure and bond the foam and coating layers together and removing the film from the panel. The outer layer may comprise a resin impregnated glass fibre mat, the resin being a polyester or an acrylic. The foamed resin is preferably polyurethane and may contain fire-proofing materials such as portland cement and solid cores of hardboard or flakeboard.
Patent GB-1146033-A (GB)
Title: Improvements in or relating to synchronous generator sets
IPC: H02P9/36
Filed: 1966-03-31
Abstract: 1,146,033. Automatic control of voltage and current. ELEKTRO - BAU A. G. March 31, 1966 [April 5, 1965], No. 14235/66. Heading G3R. [Also in Division H2] The Specification describes the stabilization of voltage and current of a synchronous generator set including a controller 11 and a synchronous exciter machine feeding the field winding 9 of a synchronous main generator via rectifiers 8 in which the exciter machine has field poles, each having associated with it a respective permanent magnet 1 and at least one exciting winding 2, 3 supplied by the controller 11 so that one or each exciting winding provides a controllable magnetic field. The field of the exciter machine can be varied by adjusting the current through the windings 2, 3 or by adjusting the position of a permanent magnet 1 arranged to slide within each pole Fig. 2 (not shown). The current through each winding 2, 3 is varied by a controller 11 which is connected to the secondary windings 13, 14 of a current transformer having its primary winding 12 connected in series with the stator winding of the main generator between the output terminals UV. The output from the generator may be rectified. Control circuits. Controller 11 may consist of circuits having variable resistors, rectifiers and Zener diodes to provide an adjustable current through the winding 2 Figs.4 and 6 (not shown). Alternatively Fig. 8 (not shown), winding 2 may be provided with a voltage stabilized by a Zener diode (31) and winding 3 may be provided with an adjustable voltage. Stabilization of voltage and current. A transistorized controller Fig. 10 (not shown), for maintaining the main generator output voltage constant and in addition a circuit Fig. 12 limiting the current drain from the generator as well as stabilizing the output voltage are described. The required generated voltage is set by potentiometer 30 and when the output voltage across UV tends to rise the Zener diode 31 conducts, which causes transistor 38 to conduct and alter the field produced by the winding 2 so as to stabilize the output voltage. In a similar manner, transistor 39 which is controlled by winding 14 of the transformer adjusts the field produced by the winding 2 so as to limit the maximum current drawn from the generator. The transistors 38, 39 may be connected in series with a resistor or the bias winding 15 of the transformer and across the winding 2 and a transistor may be used for short circuiting the resistor. The circuits include current limiting resistors 36, 37 and the rectifier circuits 26 may include controlled rectifiers controlled in dependence on voltage and current so as to replace the transistors 38, 39. Also the potentiometers 30 may be formed by bridge circuits consisting of linear or non-linear resistors.
Patent GB-839750-A (GB)
Title: Separation of fissionable solids from suspension
IPC: G21C1/26
Filed: 1946-05-10
Abstract: 839,750. Processing nuclear fuel. UNITED KINGDOM ATOMIC ENERGY AUTHORITY. May 10, 1946 [May 22, 1945], No. 14250/46. Drawings to Specification. Class 39(4). Solids are separated from a neutron-irradiated slurry of fissionable solids in deuterium oxide by centrifuging to remove a part of the deuterium oxide and then separately centrifuging the concentrated mixture of solids and deuterium oxide. A slurry of uranium oxide in deuterium oxide moderator is removed from a nuclear reactor to a first solid bowl centrifuge where most of the deuterium oxide is separated for reuse in the reactor. The remaining slurry is transferred to a second centrifuge where carbon tetrachloride is added to assist separation. From the second centrifuge the deuterium oxide phase is led to a still for removal of carbon tetrachloride, while the mixture of carbon tetrachloride and solids is mixed either with deuterium oxide or a solvent for the solids. The carbon tetrachloride is separated and used again, the solids being further treated to recover plutonium. Other organic liquids which may be used are chloroform, tetrachloroethylene, chlorobenzenes, and trichloroethylene. Bismuth uranate may be used in place of uranium oxide.
Patent GB-401376-A (GB)
Title: Improvements relating to the optical recording and reproduction of sound
IPC: G11B7/00
Filed: 1932-05-19
Abstract: 401,376. Optical sound recording and reproducing apparatus. SOUND IMPROVEMENTS, Ltd., 14, Heddon Street, Regent Street, London, and ATTKINS; A. S., Challow, Cross Path, Radlett, Hertfordshire. May 19, 1932, No. 14283. [Class 40 (ii).] In apparatus for recording or reproducing from a photographic sound record of the varying width type, means are provided whereby the exposed area of the sound track is varied in a manner dependent upon the average value of the heating effect produced by an electric current which varies proportionally to the intensity of the sounds. The recording apparatus shown comprises an oscillograph in which the image of a slit 1, reflected by a vibratory mirror 3, is focused by a lens 5 on a point 6 in the path of movement of a mask 7. The image at 6 is focused by a lens 15 on to the film. The mask 7 is mounted on an adjustably-supported pivot 8, and is connected to the mid-point of a resistance wire 12 through which a portion of the audiofrequency currents pass, the wire being fixed at its ends 13, 14. A spring 9 also acts upon the arm of the mask 7 in opposition to the tension of the wire 12. The arrangement is such that on account of the variations in length of the wire due to the heating effects of the audio-currents, the mask is vibrated transversely to the light beam, and controls the width of the slit image in such a manner that a sound record such as is shown in Fig. 4 is produced. The boundary line y produced by the relatively slow movements of the mask follows the envelope of the trace x recording tho movements of the oscillograph mirror, and thus the width of the track varies in accordance with the amplitudes of 'the sounds. Background noise in reproduction is thereby minimized. A similar device may be used in reproducing sound from an ordinary variablewidth record, the movements of the mask in this case being controlled by the heating effect of a portion of the current derived from the photo-electric cell circuit. The Provisional Specification describes a recording-apparatus in which the mirror is supported by a hot-wire device which automatically controls the position of the mirror.
Patent GB-368595-A (GB)
Title: Improvements in electric lamps
IPC: H01K3/02
Filed: 1931-05-14
Abstract: 368,595. Arc - lamp electrodes. GENERAL ELECTRIC CO., Ltd., Magnet House, Kingsway, London.-(Assignees of Patent-Treuhand Ges. f³r Elektrische Gl³hlampen; 11, Ehrenbergstrasse, Berlin.) May 14, 1931, No. 14300. Convention date, May 20, 1930. [Class 39 (ii).] In electric lamps of the type wherein an incandescent body, which may be either a filament or an arc electrode, comprises a refractory metal core having a coating of tantalum carbide, the core consists either in its entirety, or only in its surface layer lying under the tantalum carbide coating, of rhenium or rhenium alloy. The incandescent body may be in the form of a wire, strip, tube or plate, or a sphere or hemisphere, the latter being applicable for use as electrodes in sealed arc lamps. In one method of production a tungsten core wire has a thin rheniumcoating formed thereon by growth from a rhenium chloride atmosphere, and a tantalum coating is then applied by growth from a tantalum chloride atmosphere. The tantalum coating is subsequently carburized in known manner at 2200- 2600‹ C. in an atmosphere containing carbon. The tantalum carbide may be similarly applied to a core of pure rhenium or a rhenium alloy, for example platinum-rhenium, chromiumrhenium, or tungsten-rhenium.
Patent GB-132029-A (GB)
Title: Improved Heading or Tunnelling Machine.
Inventor: HIRST HENRY
IPC: E21D9/10
Filed: 1918-09-03
Abstract: 132,029. Hirst, H. Sept. 3, 1918. Coal-cutting machines.-A machine for driving headings or tunnels in coal &c. comprises a partly rotatable cutter head swivelling on vertical bearings and fitted with two upright cutter wheels fixed on a common horizontal shaft. The frame of the machine is in three sections, the central section A containing an electric, compressed-air, or other motor. The motor drives the cutter disks S through bevel gearing F, D, E, H, K, L, and also, through chain-gearing 2, 3, drives a shaft 4 in the rear frame section; the shaft 4 drives shafts 8, 13, 17 successively through worm gearing 7, 12, 16. The cutter head is pivotally supported on bearings R, and is connected by ropes &c. 29, 30 to racks 25, 26 engaged by pinions on the shaft 17; clutches 21, 22, connected by a, link 39, are controlled by adjustable stops 37, 38 on the racks so as alternately to engage one of the pinions and move the corresponding rack rearwards, whereby the cutter head is oscillated. Fixed cutters V on the head trim the floor, and hinged scrapers T move the cuttings into the path of a scraper chain W which removes them to the rear. A finder X assists in removing the cuttings. The shaft 17 also carries a cam 40, which through a lever 41 and link 43 oscillates a shaft 44 carrying a pawl lever 47 and thereby intermittently rotates a ratchet wheel 49, the rotation being conveyed through a wheel 52 to a pinion 53 engaging a rack 56 which is fixed by a jack 57; the machine is thereby advanced during each swing of the cutter head. After a given advance, a chain 58 connected to the rack 56 acts through a rod 60 and a lever 61 connected by chains to the advancing pawl 48 and check pawl 65 to raise these pawls and stop the advance, a falling pin simultaneously locking the rod 60. The jack 57 is then freed and the rack 56 advanced by means of a chain passed over a sprocket 64; this sprocket 64 is also used to move the machine rapidly into or out of a heading by its engagement with fixed chains. The scraper chain W is driven by chain gearing from the shaft 8. To guide the machine, fixed fenders 70, 71 and adjustable fenders 74, 75 are provided at the front and rear respectively.
Patent GB-845973-A (GB)
Title: Ferrites with square hysteresis loops
IPC: C04B35/26
Filed: 1958-05-05
Abstract: 845,973. Magnetic compositions. STEATITE RESEARCH CORPORATION. May 5, 1958 [June 18, 1957], No. 14315/58. Class 38 (2). A ferrite material having a square hysteresis loop has a constitution in molecular percentage given by 27.5-66% MnO, 30-47.5% and 4-25% MO, where MO comprises at least 2% MgO and one or more oxides from the group CaO, CuO, ZnO and CdO, the MgO always being the minor component as compared with the sum of the other MO components. A mixture of the oxides or decomposable compounds e.g. carbonates or oxalates is milled, dried, calcined at 1700‹ F., reground, dried, granulated, pressed or extruded into shape, fired in air at 2410-2460‹ F., and refired in water vapour at 2100-2400‹ F. Alternative processes involve only one firing at 2425-2435‹ F. in water vapour or nitrogen. A table showing the molecular compositions of various examples is provided. Properties are given. Specifications 748,070, 759,244, 759,245, 759,246, 759,248, 763,818 and 764,118 are referred to.
Patent GB-964991-A (GB)
Title: Improvements in or relating to apparatus for determining the deviation of a vehicle from a predetermined track
Inventor: ROBERTS GRAHAM ESTYN
IPC: G01S5/02
Filed: 1961-04-20
Abstract: 964,991. Photo-electric curve-following and information deriving apparatus. DECCA Ltd. July 5, 1962 [July 20, 1961], No. 14375/61. Heading G1A. [Also in Division H4] A device for deriving an error signal indicative of the magnitude and direction of the misalignment between a sensing head and a boundary line on a record includes a sensing element arranged for rotation at a uniform speed about an axis normal to the record and a comparator giving an output or indication dependent on the relative durations of the passage of the sensing element over the parts of the record on either side of the boundary. The detector may be photo-electric and the record boundary defined by the use of areas of different reflectivity of transmissivity. In the embodiment described the boundary defines a course on a chart along which it is desired to navigate a craft. The sensing head is positioned in accordance with the craft position as determined by a radio-navigation system and the error signal applied to a navigational instrument or automatic craft control system. The sensing head 15 is shown movable on screw 16 by motor 17 over chart 10 marked with the course as the boundary between an area of good reflectivity and a darker area 20. The chart is movable in a direction at right angles to the head movement by motor 13 or motor 14. The motors 13,14, and 17 are controlled by the output of radio-navigation system 18 to position head 15 over the chart in accordance with the instantaneous craft position. The head carries a light-guide 23 rotatable by motor 22 so that its face 26 scans round a circular path over the chart. The guide directs light to photo-cell 28. It is preferred to illuminate the chart by light from a lamp 29 interrupted by rotating shutter 30 at a frequency high with respect to the rotational speed of guide 23; the photo-cell output can then be fed to an amplifier 32 tuned to the interruption frequency to give an output independent of any variations in other illumination falling on the chart. The amplified signal is fed to a comparator 33 giving an output dependent on the amount and sense of the deviation of the two output level periods from equality and the output is fed to a centre zero indicator 34 or control system through a reversing switch 35 set in accordance with the direction of travel. Specification 914,185 is referred to.