baber/WOPTO huggingface dataset:
Patent GB-740140-A (GB)
Title: Improvements in a gate seal for dams and the like
IPC: E02B7/54
Filed: 1954-06-30
Abstract: 740,140. Dam and like gates. CAMPHAUSEN, F. H., and HILLIER, E. W. June 30, 1954, No. 19193/54. Class 68(2) For sealing the gap between the sides and bottom of a dam or like gate 10 and the opening in which the gate works, the gate is provided on one face adjacent its edges with a U-shaped lined member 22 with its mouth directed outwardly. A continuous rubber or like member 30 is positioned within the member 22 and is projected forwardly by pressure built up behind it in the space 64 in the member 22. The member 30 is prevented from leaving the member 22 entirely by a lip 40. The member 30 may have a passage 50 therethrough for circulating a heating liquid and the pressure space 64 may be electrically heated. A valve may connect the space 64 either to the upstream pressure or to the downstream side. Instead of the member 30 being shaped with the fins 48 as shown, it may be circular in section.
Patent GB-653285-A (GB)
Title: Improvements in or relating to gas-turbine power-plants
Inventor: FLETCHER ARTHUR HOLMES
IPC: F02C7/20
Filed: 1948-07-16
Abstract: 653,285. Gas turbine plant. ROLLS-ROYCE, Ltd. July 16, 1948, No. 19212. [Class 110(iii)] A gas turbine 13 and air-compressors 10, 11 are secured to opposite sides of a central supporting casing 20. Trunnions 21 on the casing 20 are mounted in spherical bearings on pedestals 22 which are secured to a part 23 of a ship or other supporting structure. Angular movement about the trunnion axis is prevented by a link 45 and angular adjustment is obtained by means of shims 47. The assembly can be adjusted in the direction of the trunnion axis by turning a shaft 48 which is normally locked in the casing 20. The end of the shaft 48 is eccentric and engages a block slidable vertically in a guide 57 secured to the structure 23. The plant shown is the high-pressure unit of a ship's propulsion plant. The first turbine rotor 13a drives the compressors and the other rotors 13b, 13c drive the propellers through reduction gearing 18 and shafts 19. The shaft 14 of the rotor 13a is coupled to the compressor shaft 12 by a muff 43 splined to the ends of both shafts. The shaft 15 of the rotors 13b, 13c is similarly coupled by a muff 44 to the drive shaft 16. The muffs are normally free of the casing 20, but when the turbine and compressor, with their shafts, are withdrawn the casing holds the muffs in position for the re-entry of the shafts. Air from the low-pressure unit is received by two ducts 27, with flexible couplings 26 and passes to the cavity 24 of the casing 20 and thence to the compressor 10. It passes from the compressor 10 by a pipe 36 to an interstage cooler and thence to the compressor 11 by a pipe 37. From the compressor 11 the air goes by a pipe 40 to an air-preheater and then to two combustion chambers 42 which deliver to the turbine. The drive 34 for the plant auxiliaries is carried by the casing 20. Specification 624,298 is referred to.
Patent GB-188724-A (GB)
Title: Improved method of separating micro-organisms from liquids
IPC: C12N1/02
Filed: 1921-07-16
Abstract: 188,724. Henneberg, W. July 16, 1921. Bacteria, cultivating. - Micro-organisms are separated from liquids by the addition of microorganisms having a flock-forming tendency, and which preferably have no deleterious action on the liquid or on the cultures so separated. The process is applied to the manufacture of yeast, to precipitating and recovering bacteria cultures, and to clarifying bevenages such as beer, or other liquids. Innocuous flocking lactic-acid bacteria for use in air-yeast manufacture can be isolated from commercial pressed " infected " yeast and cultivated in wort-agar in the Petri-bowl. In making yeast, this culture is sown and cultivated with the yeast, or added during cultivation, and causes the quantitative precipitation of the yeast when ripening is complete and the air is cut off. It may also be added to the washing-water to cause a like separation. The precipitated yeast, mixed with the flocking micro-organisms, can be used as starting-yeast for a further operation.
Patent GB-940331-A (GB)
Title: Improvements relating to motor-vehicle roofs
IPC: B62D25/06
Filed: 1962-05-18
Abstract: 940,331. Vehicle roofs. DAIMLER-BENZ A.G. May 18, 1962 [May 31, 1961], No. 19324/62. Heading B7B. To reduce disfiguration resulting from imperfections radiating from weld points the roof panel of a vehicle is provided with ridges or troughs in the regions where reinforcing members are secured. In Fig. 2 the roof 4 has a raised part 6 where the parts 5 and 7 are welded and the part 6 may merge with the part 5 without a step. In Fig. 7 a trough 16 in the roof panel 15 forms an attachment region for the part 17 and if desired a rail 18. Transverse bearers extending between the sides of the vehicle may also be secured to troughs provided in the roof panel. The troughs may also be filled with resilient inserts.
Patent GB-153653-A (GB)
Title: Improvements in or relating to the valves of internal combustion engines of the sleeve valve type
IPC: F01L5/06
Filed: 1919-08-06
Abstract: 153,653. Wilson, W. G., and Wessex Engineering Co. Aug. 6, 1919. Valves; valve-gear.-In an engine of the type having a reciprocating sleeve-valve C actuated by a rod F and pin G projecting through a slot E in the cylinder wall, the rod working in a guide bored in the cylinder wall or formed in a tube arranged parallel to the cylinder, the pin G and rod F are integral or are assembled as a unit, the guide hole D is made large enough to admit the rod and the pin, and a filling piece J is then inserted behind the rod. The rod F and piece J may be cut from a cylindrical rod, and together fit the cylindrical guide in which they can turn freely so far as allowed by the lateral clearance of the pin G in the slot E. Two such rods and guides are provided, one at each side of the valve. The valve is moved upwards by gear, and is returned by springs.
Patent GB-463021-A (GB)
Title: Method and apparatus for the exhibition of cinematographic pictures, series of still pictures, or for the transmission of optical signals
IPC: G09F9/40
Filed: 1936-07-13
Abstract: 463,021. Projecting images, signals, &c. DVORNIK, A. July 13, 1936, No. 19440. Convention date, July 12, 1935. [Class 97 (i)]] Also in Group XXXVIII] Images are projected, from lenticular plates or films bearing a multiplicity of broken-tone images in one image area, by means of a number of fixed light sources used singly or in groups; the images may form a kinematographic series, may be unrelated, or may constitute optical signals. The broken-tone images may be produced in the manner described in Specification 421,120. Fig. 2 shows a projection chamber comprising lamps 5 carried by a board 4, a matt projection screen 7, and a lenticular plate 1 having lenses 2 and an image layer 3. The lamps may be lighted in predetermined order, for kinematography &c., by a rotary commutator, Fig. 1, comprising a gear 11 driven by a motor 12 and carrying a spring contact 10 on an arm 18. The rotated contact 10 successively engages contacts 8, 9 connected to the lamps 5 in the desired order, the contact 9 being wide so that the corresponding lamp remains lighted longer than the others ; the circuits include a transformer 13. The lamps may, alternatively, each be connected to a separate switch operable by hand. Two or more projection chambers may be simultaneously controlled by one commutator &c., and, for multi-colour image records, &c., two or more lamps, whch may be of different colours, may be simultaneously lighted.
Patent GB-147501-A (GB)
Title: Start and stop mechanism for talking machines
IPC: G11B17/02
Filed: 1920-07-08
Abstract: 147,501. Columbia Graphophone Manufacturing Co., (Assignees of Woods, C. E.). Sept. 9, 1913, [Convention date]. Acting on flat sides of disks.-Comprises a brake for a gramophone operated by the movement of the tone-arm. When the sound-box is at the periphery or at the centre of the record, the cam 39 or 40 as the case may be presses in the spring-controlled member 31 which rocks a bellcrank lever 46, the arm 49 whereof carries a spring 50. This spring bears on a lever 51 which rocks about an axis in the plane of the paper and -carries brake pads 45, adapted to engage a friction disk 44 and stop the machine.
Patent GB-459515-A (GB)
Title: Manufacture of plastic masses
IPC: C08K3/011
Filed: 1935-07-08
Abstract: Insoluble plastic masses are manufactured by treating polyvinyl ketones with alkaline agents, e.g. small quantities of substances having a strong alkaline action, such as potassium, sodium or lithium hydroxides, also the carbonates of these metals, hydroxides of the alkaline-earth metals, e.g. of calcium, barium or strontium, or ammonia.  The treatment may be effected at room temperature or at elevated temperatures, e.g. up to 100 DEG  C.  The polyvinyl ketone may be treated in solution in an organic solvent, e.g. acetone or methylene chloride, and the alkalies may also be in the dissolved condition.  Alternatively the alkalies may be caused to act on a solid form of the polyvinyl ketone.  In examples: (1) polyvinyl-methyl ketone dissolved in acetone is treated with alcoholic caustic soda; (2) polyvinyl-ethyl ketone dissolved in methylene chloride and acetone is treated with a solution of barium hydroxide in 80 per cent alcohol; (3) a film of polyvinyl-methyl ketone is treated with aqueous ammonia. Specification 404,317 is referred to.  The Specification as open to inspection under Sect. 91 comprises also the carrying out of the process with both reacting substances in the non-dissolved state, e.g. in the dispersed or emulsified condition.  It is also stated that the polyvinyl ketones may be shaped in admixture with the alkalies in finely ground condition and the mixture then heated.  In an additional example, polyvinyl-methyl ketone dissolved in acetone is treated with aqueous ammonia.  Polyvinyl-propyl ketone is additionally specified as a starting material and amines having a strong alkaline reaction, e.g piperidines or pyridines, as alkaline agents This subject-matter does not appear in the Specification as accepted.
Patent GB-748787-A (GB)
Title: Improvements in and relating to fatigue testing machines
Inventor: THOM ALEXANDER
IPC: G01N3/34
Filed: 1953-07-14
Abstract: 748,787. Fatigue testing machines. NATIONAL RESEARCH DEVELOPMENT CORPORATION. Sept. 23, 1954 [July 14, 1953], No. 19560/53. Class 106 (2). In a machine for testing fatigue in which an out-of-balance mass is rotated on the free end of a cantiliver-held test piece, the centrifugal force due to the loading head when the test piece deflects is balanced out by springs so that the test piece is subject only to the load due to the mass. The test piece I is hold in a bracket 13 and the loading head 27 carrying a test weight 29 is rotated on its free end by a motor 33 through a flexible drive 32. The head 27 is carried by ball bearing on a split sleeve fitting on the test piece and having centred on it a collar 21. A fixed ring 17 carries screws 18 which bear on springs 36 in cups 19 on the sleeve 21, the springs balancing out the loading head centrifugal force. The test piece may be surrounded by a heating or cooling jacket. The springs may be adjusted to balance out the static load of the head. The invention is especially applicable to ceramic materials or ceramic-metal compositions.
Patent GB-808520-A (GB)
Title: Improvements in lathe or other machine tool feed mechanisms
Inventor: FIRTH ARTHUR JOSE
IPC: B23Q5/52
Filed: 1956-06-25
Abstract: 808,520. Lathe details. COLCHESTER LATHE CO. Ltd. June 17, 1957 [June 25, 1956], No. 19567/56. Class 83 (3). A lathe or other machine-tool feed mechanism which is adapted to trip when a slide encounters a stop, comprises an axially-movable spring- loaded worm 9, Fig. 2, forming part of the feed mechanism and carried by a pivotally-supported housing 1, Fig. 1, a catch 15 for securing the housing in its normal working position, and a catch-releasing means responsive to axial movement of the worm when an abnormal torque is imposed thereon. The worm-box 1 pivots by trunnions 3, 4, Fig. 2, about the feedshaft axis. A pinion 6 is splined to the feedshaft and drives the worm 9 through a pinion extension 8. The worm is supported on a hollow shaft 10 having a transverse slot 12 through which a pin 11, secured to the worm, extends. The worm-box is raised to engaged position by a handle 17, a catch 15 engaging over a member 18. A slidable plug 20 has a pointed end engaging a V-groove 19, Fig. 2, in the worm-boss. On encountering a stop or other obstruction, the slide on which the mechanism is mounted halts the worm, which moves to one side or other of its central position against the pressure of one the springs 13. The plug 20 is forced out of the groove and moves back against the catch 15, Fig. 1, to release it from member 18, thus allowing the worm to drop out of engagement with the other feedgears. An interlock is described between the above mechanism and a hand-lever for engaging a screw-cutting mechanism.
Patent GB-257121-A (GB)
Title: Improvements in or relating to centrifugal dust separators
IPC: B04C1/00
Filed: 1925-05-19
Abstract: 257,121. Johnston, J. M. T., and Davies, J. E. May 19, 1925. Density separators;; discharging.- A centrifugal dustseparator comprises a centrifugal fan 9 the volute casing of which is provided with louvre openings 5 which face the direction of rotation of dust-laden gas and through which dust passes to a collecting chamber 11 surrounding the fan-casing. The louvre openings may be parallel to the fan axis or at an angle thereto and may be adjustable in width either individually or simultaneously by means of slidable plates 15 which overlap the unbent edges of the openings. For simultaneous adjustment these plates may be secured to chains surrounding the fan-casing and attached to bolts outside the casing. The dust is removed from the collecting chamber 11 by a, worm 13. A throttle valve 37 is fitted in the gas outlet. Specification 236,452 is referred to.
Patent GB-702833-A (GB)
Title: A system for charging moulds and the like with molten metal
IPC: B22D39/02
Filed: 1950-08-08
Abstract: 702,833. Delivering measured quantities of iiquid. SAUTER, H., and HAHN, W. [trading as HAHN & KOLB, [Firm of]]. Aug. 8, 1950 [Oct. 1, 1948], No. 19697/50. Class 106(5) [Also in Groups XI, XII and XXII] Apparatus for charging a mould or a diecasting machine with molten metal comprises a displacing member 12 adapted to be lowered to raise the level of the metal in a chamber 5 contained within and communicating with, a main storage vessel 1, the communicating opening 13 being closed by a member 14 just before displacement begins. The level is raised so that molten metal flows from a pouring spout 8. The spout, the upper parts of the outer and inner vessels 1 and 5 and the displacing member 12 are electrically heated. The displacer 12 is connected to a rod 10 which may be reciprocated from a moving part of the die-casting machine. A rod 11 carrying the valve 14 passes through a link 17 secured to the rod 10 and carries at its upper end a nut 20. Downward movement of the displacer rod 10 operates through the link 17, spring 18 and collar 19 to depress rod 11 to close the valve. The quantity of metal discharged at each stroke of the plunger can be kept constant in spite of a lowering of the level in the vessel 1 by varying the stroke of the plunger or by rotating a nut 20 and so altering the time at which the valve 14 closes the opening 13.
Patent GB-1000051-A (GB)
Title: Improvements in rectifier bridges
Inventor: BENISTON PATRICK THOMAS
IPC: H02P7/292
Filed: 1963-05-17
Abstract: 1,000,051. Rectifying; control of D.C. motors. CLARKE, CHAPMAN & CO. Ltd. May 6, 1964 [May 17, 1963], No. 19699/63. Headings H2F and H2J. A rectifying circuit, suitable for supplying a D.C. motor, comprises a bridge of siliconcontrolled rectifiers each shunted by a resistor 22 and series combination of resistor 24 and capacitor 26. Several rectifiers may be seriesconnected in each bridge arm, the resistors 22 sharing the reverse voltage to effect protection, and the resistor capacitor combination effecting protection against voltage transients. In a three-phase circuit (Fig. 2, not shown), two three-phase bridges are provided to drive a reversible motor in either sense. Each bridge arm includes a series of protected rectifiers with an additional diode shunted by a resistor at the end. Series chokes 32 are included in the supply to the motor and resistor/capacitor combinations shunt the D.C. A block diagram of a manually or automatically regulated supply (Fig. 3, not shown) is disclosed.
Patent GB-1035516-A (GB)
Title: Improvements in or relating to apparatus for dispensing liquids in measured quantities
Inventor: BERWICK WILLIAM RICHARD
IPC: B67D3/02
Filed: 1963-05-17
Abstract: 1,035,516. Delivering measured quantities of liquid. GASKELL & CHAMBERS (NON- DRIP MEASURE) Ltd. May 19, 1964 [May 17, 1963], No. 19714/63. Heading B8N. Apparatus for dispensing measured quantities of liquid comprises a dispensing device 3 having an operating stem actuated by means of a lever 14 and a cam 12 driven by a motor 10, the control circuit for the motor including a hold-on mechanism 21, 23 operable to ensure that a complete cycle of operations is effected at each operation. The lever 14, which is pivoted at 15, has a forked end 16 engaging the valve spindle 17, and a roller 13 at its other end co-operating with a track 18 in the cam 12. In operation, when a push-button switch 20 is pressed, the motor is energized so as to rotate the cam. Immediately the cam starts to rotate, a lobe 21 thereon releases a switch 23 so that the motor will not stop until the dispensing operation has been completed. In order to prevent operation of the apparatus when the level of the liquid in a reservoir 2 falls below a certain level, the reservoir is adapted to pivot, under the action of a spring 36, so that a switch 34 is opened, the lever thereof losing contact with an adjustable stop 35. One or two electrically-operated counters 30 are provided.
Patent GB-1509535-A (GB)
Title: Ignition systems for gas-fired appliances
IPC: F23N5/24
Filed: 1975-05-05
Abstract: 1509535 Burner controls VALOR NEWHOME Ltd 5 May 1975 [4 May 1974] 19715/74 Heading F4T The subject-matter is the same as that in Specification 1,509,534 but the claims relate to the means for limiting the voltage across or current flow through the switches.
Patent GB-677609-A (GB)
Title: Improvements in or relating to pipe couplings
IPC: F16L37/33
Filed: 1949-12-28
Abstract: 677,609. Pipe couplings. BENDIX AVIATION CORPORATION. Dec. 28, 1949 [Dec. 28, 1948], No. 19718/51. Class 99 (i) A coupling comprises a pair of fittings 18, 19 adapted to be pressed together fluid-tightly by a sleeve 17 detachably locked to each fitting such as by a bayonet-joint 23, and interengaging shoulders 20, 21, and sealing rings 50, 51 compressed radially between the sleeve and each fitting, the ring 51 having freedom of longitudinal movement in a space 52 whereby it may be displaced during the coupling operation by air trapped between the fittings. As shown, the operation is partly completed. To limit the air trapped the sleeve bore has steps 53, 55, and the fitting 19 has external steps 56, 57. Mutuallyactuated ball-valves 36 may be provided.
Patent GB-505243-A (GB)
Title: Hinge
IPC: E05D5/14
Filed: 1938-07-04
Abstract: 505,243. Hinges. ATWOOD, S. B., and ATWOOD, J. T. July 4, 1938, No. 19764. [Class 65 (ii)] A hinge comprises a pair of hinge members 14, 16 each of which is composed of an attaching shank 18, 25 and a channel-shaped pintlereceiving portion 20, 27 connected together by a channel-shaped intermediate portion 19, 26. The latter portion decreases in depth and increases in width from the pintle receiving portion to the shank. The top and bottom flanges 21, 22, 28 and 29 together with the webs 23, 24, 30 and 31 may be formed by bending inwardly the, edge portions of a piece of strip steel. The pivot pin 32 may be mounted in a bush let into holes in the flanges 28, 29. The surfaces of the shanks may have reinforcing ribs 36, 37 pressed in them and the webs 23, 24 30, 31 may be extended along the upper and lower edge's of the shanks to give further rigidity.
Patent GB-702886-A (GB)
Title: Improvements in or relating to the extraction of pyrethrins
Filed: 1952-08-06
Abstract: Pyrethrin is extracted from pyrethrum by means of di-isopropyl ether. The extraction may be effected in two stages, the first stage of which may be a preliminary extraction with another solvent, for example petroleum ether or a similar solvent such as petrol, kerosene, ketones, alcohols or ethylene dichloride.  When a preliminary extraction agent is employed, the extracts in the two solvents may be combined in order to precipitate resins and other non-insecticidal substances dissolved in the preliminary extraction solvent, by means of the di-isopropyl ether.  French Specification 846,982 is referred to.
Patent GB-613783-A (GB)
Title: An improved construction and arrangement of seed drill
IPC: A01C7/16
Filed: 1946-07-03
Abstract: 613,783. Seed soweis. THORNE, S. W. C. July 3, 1946, No. 19863. [Class 6 (i)] Relates to seed-sowing machines of the type comprising a wheeled frame supporting a transverse seed hopper with a feed helix which is located in a channel in the base of the hopper and is driven from the land wheels through means imparting a continuous or intermittent rotary motion to the feed helix. According to the invention, the feed helix has an intermittent rotary motion imparted to it by an operating lever and a nut slidable on and engaging the helix. As shown, seed is fed from a hopper 10 Fig. 5 through apertures 18 to a screw conveyer 16 which delivers the seed into delivery tubes 21. The conveyer 16 has a nut 44 mounted thereon which is connected to a lever 40 Fig. 1 the end of which has a cam-shaped slot 45 engaging pins 46 on a plate 47 which is mounted on the landwheel axle 3. A clutch 48 is provided for engaging the drive to lever 40. To vary the rate of feeding, the fulcrum 41 of lever 40 is adjusted by means of a nut and bolt sliding in a box-shaped slot in the machine frame. The hopper 10 is provided with a pivotally mounted inverted V-shaped agitator 23, and a pin 26 on the end of the agitator shaft 24 periodically engages a pin 27 on the end of the conveyer shaft 29 to impart an oscillating motion to the agitator 23 which is restrained by springs 25. The tubes 21 have flexible extensions (not shown) which reach close to the ground. The apparatus, normally of wheelbarrow form, may be adapted to be pulled by a tractor or cart. The seed trough may be detached and a suitable body provided for use as a wheelbarrow.
Patent GB-618527-A (GB)
Title: A process for refining refractory carbides
IPC: C01B31/30
Filed: 1946-07-03
Abstract: Carbides of refractory metals of the fourth or fifth periodic groups or mixtures or solid solutions or mixtures of solid solutions thereof are refined, i.e. deoxidized and/or denitrified by heating them in admixture with a carbide of a metal of the sixth periodic group with the addition of sufficient carbon to replace the oxygen and/or nitrogen in the carbide to be refined. The carbides and carbon may be intimately mixed in powdered form, heated from 1600-2000 DEG  C. for 1-3 hours in a gas-tight vessel under vacuum, cooled (under vacuum) and submitted to the heat treatment described in Specification 614,053.  The refining may also be executed in the presence of an auxiliary metal or alloy, e.g. a metal of the iron family, in a proportion of less than 10 per cent by weight of the carbide to be treated.  The group VI metal carbide may be formed in situ. Specification 516,227, [Group II], also is referred to.
Patent GB-714510-A (GB)
Title: Improved method for the soldering of articles consisting of aluminium or alloys thereof
Inventor: TWIVEY DERRICK
IPC: B23K1/00
Filed: 1951-08-24
Abstract: An alloy used in the soldering of aluminium or aluminium alloy has the composition .tin.80 per cent .zinc.20 per cent