baber/WOPTO huggingface dataset:
Patent GB-331528-A (GB)
Title: Improvements in and relating to boiler feed, steam condenser and like systems
IPC: F22D5/06
Filed: 1929-03-02
Abstract: 331,528. Arrowsmith, G., and Hick, Hargreaves, & Co., Ltd. March 2, 1929. Feedwater, supplying and controlling. - Boiler feed systems of the " closed " .type, having a standpipe or head tank between the condenser extraction pump and the supply to the boiler feed pumps to receive excess water when the discharge from the condensate pump exceeds the feed demand, are provided with means for utilizing the pressure or flow conditions in the standpipe or head tank connection to control the delivery of water to the condenser when the condensate is inadequate for the boiler feed. A casing 1 has three chambers 2, 3, 4 respectively communicating with the discharge pipe 7 from the condensate, extraction pump 8 through a pipe 6, with the head tank 10 through a pipe 9 and via an auxiliary chamber 5 with the condenser 34 through a pipe 33. A control element comprises a piston valve having a part 11 which co-operates with a seat 14 between chambers 2, 3 and a part 20 co-operating with slots 26 forming a passage between chambers 3, 4. A spring 16 affords a resilient resistance to continued closing movement of the valve beyond a predetermined point. By means of a rod 17 and handwheel 19, the valve may be held permanently open or closed, or its movement restricted in either direction. A cylinder 22 which houses a piston element 21 of the valve communicates through a pipe 24 with chamber 3 to balance the valve. A valve 27 between chambers 4, 5 is normally held open against the tension of a spring 29 by the pressure in the discharge pipe of the condensate extraction pump communicated through a pipe 30. In normal conditions the control valve is closed; on a reduction of pressure in chamber 2, upon an increased demand of the feed pumps, a further closing movement of the valve uncovers the slots 26 thus allowing water to pass from the head tank through chambers 4, 5 and pipe 33 to the condenser in which it is deaerated. Should the discharge pressure fall as by failure of the condensate extraction pump, valve 27 closes and prevents flooding of the condenser, while the supply to the feed pumps is maintained through an emergency valve 12 between chambers 2, 3 which opens in these, circumstances. When the boiler feed demand falls off, the pressure created causes the control valve to open enabling excess water to pass to the head tank. In a modification, the overhead tank is reduced in size, and make-up to the boiler feed is drawn by suction of the condenser from a lowlevel tank which is connected to the condenser through the central device and to the head tank by an overflow pipe.
Patent GB-1358441-A (GB)
Title: Fluid level indicating switch devices
IPC: G01F23/74
Filed: 1972-02-15
Abstract: 1358441 Movable magnet switches GIRLING Ltd 18 May 1972 [26 May 1971 15 Feb 1972 6 March 1972] 17234/71 6951/72 and 10425/72 Heading H1N A fluid level indicating device has a main housing 2 and a housing member 11 extending therein and having mounted thereon a magnetically operable contact unit 12 for operation by a magnet on a float 9 as the float falls or as the member 11 is raised manually within the housing 2. The member 11 is movable within the housing 1 between limits set by flanges 4, 5 of a threaded nipple 3 which secures the housing 2 on a cap 1 and has a rubber cap 13 snapfitted to the nipple 3 and secured to the housing member 11. The nipple 3 may have ramp-like surfaces for engagement by the rubber cap 13 (Fig. 2, not shown). Both upper and lower stops 8, 10 for the float can be on the housing 2 or the lower stop can be on the member 11 (Fig. 2). The cap 13 can be arranged to provide long air passages between the chamber in which the float is movable and the outside of the cap so as to constitute an uncontaminated air reservoir which can at least partially satisfy the requirement for additional air to replace liquid in the reservoir when the level falls (Figs. 3 to 6, not shown).
Patent GB-1246727-A (GB)
Title: Therapeutic hypotensive compositions comprising 5-alkylpicolinic acids
Inventor: UMEZAWA HAMAO
IPC: C07D213/79
Filed: 1969-02-10
Abstract: 1,246,727. Compositions comprising picolinic acid derivatives. ZAIDAN HOJIN BISEIBUTSU KAGAKU KENKYU KAI. 10 Feb., 1969, No. 6997/69. Heading A5B. [Also in Division C2] A therapeutic composition, in unit dosage form, having hypotensive activity comprises 5-butylpicolinic acid or 5-pentyl-picolinic acid and pharmaceutically acceptable salts thereof, together with a pharmaceutically acceptable diluent or carrier, the active ingredient being present in an amount of 20-250 mg. per unit dose of the composition. The compositions may be in a form suitable for oral administration or in the form of a suppository. The picolinic acids may for example be present as the calcium salt or the hydrochloride.
Patent GB-200861-A (GB)
Title: Improvements in reciprocating engines
IPC: F01B17/04
Filed: 1922-10-28
Abstract: 200,861. Barclay, J. G., Barclay, A. N., and Barclay &. Co., Ltd. Oct. 28, 1922. Oscillating valves ; slide valves, cylindrical, piston, and flat.-In a single-stage reciprocating engine having terminal exhaust ports 11, and admission and exhaust ports 7, 14 at the end of the cylinder controlled by an oscillating, piston or flat slide valve, the exhaust passage 14 extends longitudinally of the cylinder to the centralexhaust outlet 13. The cylinder may be doubleacting with chests at each end.
Patent GB-361230-A (GB)
Title: Loom shuttle actuating mechanism
IPC: D03D49/24
Filed: 1931-03-06
Abstract: 361,230. Loom picking motions. TEFAG TEXTIL FINANZ, AKT.-GES., Zurich, Switzerland.-(Assignees of Rossman, R. ; 20, Unterbrunnerstrasse, Gauting, near Munich, Germany.) March 6, 1931, No. 7101. Convention date, March 6, 1930. [Classes.142 (ii) and 142 (iii).] The shuttle a, for example a gripper shuttle, has a notch i adapted to be engaged by a pawl h on a rapidly-reciprocating slide d operated by a connecting-rod e and crank f or eccentric on a shaft g which may he operated by a separate motor. The slide d makes a number of idle strokes till the pawl is moved from its inoperative position shown in dotted lines to its full-line position. The pawl may be actuated by connections from the shaft g, by the shuttle, or by a lever actuated by the device for supplying weft to the shuttle and adapted to be moved into the path of a finger n on the pawl to turn it into the position for engaging the shuttle. The parts may work in an oil bath, or lubricant under pressure may be employed.
Patent GB-986007-A (GB)
Title: Thermographic material for making lithographic printing plates
IPC: B41C1/10
Filed: 1962-02-23
Abstract: 986,007. Heat-sensitive material for lithographic plate production. EASTMAN KODAK CO. Feb. 23, 1962 [March 10,1961], No. 7132/62. Heading G2C. A support carries a thin hydrophobic layer and a superimposed thin hydrophilic layer having dispersed therein inert particles which under the action of heat are capable of causing the underlying hydrophobic material to migrate into the hydrophilic layer. Heat exposure can thus produce a lithographic plate directly. In Example 1 cellulose acetate film base is thinly coated with beeswax and overcoated with a ball-milled mixture of gelatin, diatomaceous earth, saforin and formaldehyde, dried overnight and exposed under an original treated document to infra-red radiation to produce a lithographic plate.
Patent GB-372878-A (GB)
Title: Improvements in and relating to locks, fastening devices and the like
IPC: E05B65/08
Filed: 1931-03-07
Abstract: 372,878. Door fastenings. SLOPE, A. J., 45, Broadwater Avenue, Letchworth, Hertfordshire. March 7, 1931, No. 7142. [Class 44.] A fastening for a sliding door &c. which is released by force applied to the handle in a direction to open the door has means for holding the catch in released position until the door is closed. The device comprises a pair of inturned hook members 12 projecting from a casing 1 within which they are pivoted at 11 and engaging a T-form striking member 27 on the door post under the action of springs 13. Handles 31 at opposite sides of the door are pivoted at their lower ends and are connected at their upper ends to a spindle 16 slidable along slots in the casing and carrying a cam 15 adapted to engage inclined members 14 on the members 12, which are thus separated to release the fastening when a handle is moved to the right, Fig. 2. A member 20 carried by a slidable rod 18 and acted on by a spring 22 engages shoulders 21 on members 14 to retain members 12 in the release position when the door has been opened, the outer end of rod 18 then projectiog from the casing. When the door is closed, the rod is forced inwards by contact with member 27, thus freeing members 12 and allowing them to engage member 27. To prevent damage to dress &c. by the hooks 12 and member 27, pairs of guard plates 24, 28 are provided having tapered guide surfaces which fit together when the door is closed. Wood-fibre &c. blocks 29 on one pair of plates engage recesses 30 in the other pair to prevent rattle.
Patent GB-1380308-A (GB)
Title: Combustion head of a burner
IPC: F23D11/40
Filed: 1972-02-16
Abstract: 1380308 Burner head FINTERM SpA GRUPPO FINANZIARIO TERMICO 16 Feb 1972 [25 Feb 1971] 7179/72 Heading F4T A combustion head of a burner comprises an air supply pipe 1 coaxially surrounding a fuel pipe 2 which terminates in a spray nozzle 3, and a cup 4 surrounding the spray nozzle 3 which is coaxial with an ejector device through which air from the supply pipe 1 flows to induce a low pressure externally of the cup 4 to cause recirculation of a portion of the burnt gases to the combustion zone. The ejector device may comprise an annular member 9 spaced from a tapered end 8 of the air supply pipe 1 to define an annular aperture B through which the recirculatory burnt gases may flow, or it may be a tubular extension (10) (Fig. 2, not shown) of the air supply pipe 1 with at least one aperture (11) in the extension (10) through which recirculatory burnt gases may flow. The cup 4 causes, via the Coanda effect, a deflection in the upstream direction of some of the recirculatory gas and promotes mixing of the reagents and stabilization of the flame. Holes 7 in the cup 4 ensure that air passing through them prevents unburnt fuel from depositing in the cup 4.
Patent GB-141178-A (GB)
Title: A new or improved mechanical toy
IPC: A63H13/10
Filed: 1919-03-22
Abstract: 141,178. Fisher, A. L. March 22, 1919. No Patent granted (Sealing fee not paid). Table games; projecting-appliances; bowling- machines.-Relates to a mechanical figure for throwing balls. The Specification describes a toy bomb thrower but states that the figure can also be used as the bowler in playing miniature cricket and for practising the game of cricket and that it can be controlled by coinfree mechanism. The arm a is rotated through the medium of a crank d, Fig. 6, and connecting link f by finger-pressure on a lever h. Steel balls o or the like are fed singly from a hopper v through a tube r, down the hollow arm a to the hand H. The single feed mechanism consists of two short arms s, t, Fig. 2, which alternately obstruct the passage of the balls o along the tube r when the arm a is rotated. A spring returns the arm a to its initial position. The arm a may be arranged to deliver the ball as in underarm bowling or to throw it at a target.
Patent GB-809579-A (GB)
Title: Improvements in or relating to ear-rings
IPC: A44C7/00
Filed: 1957-03-05
Abstract: 809,579. Ear rings. COCKS, F. March 5, 1957, No. 7235/57. Class 43 An ear ring comprises a bent wire which is passed through a hole in the ear in order to engage a straight part 2 carrying an ornament 1, a part 3 substantially at right angles to the part 2, contacts the rear surface of the ear.
Patent GB-575873-A (GB)
Title: Improvements in or relating to expanded plastics
IPC: C08J9/04
Filed: 1944-04-19
Abstract: Expanded casein products are obtained by incorporating a gassing agent into a stiff dough obtained by swelling a rennet or acid precipitated casein mix with 20-50 per cent of water, which may contain 3-7 per cent of an alkali such as caustic potash, partially filling a closed mould with the dough and heating it at a temperature sufficient to release gas from the gassing agent and thereafter cooling before releasing the expanded material which is subsequently hardened by a hardening agent.  5-25 per cent of the gassing agent, which may be sodium bicarbonate, ammonium carbonate, diazoaminobenzene or urea, or mixtures of such materials, are used; and borax to render the material non-inflammable, and fillers and pigments may be added.  In an example, 5 parts of KOH in 50 parts of water are stirred with 100 parts of casein and, during mixing in a cool mill, 5 parts of diazoaminobenzene added.  The mixture is then calendered at 100-120 DEG  F. to the desired thickness (e.g. to 3/16 of the final thickness if a density of 7 lbs./cu. ft. is required), and then dried at 140 DEG  F. for 48 hours.  The blank is then heat expanded in the mould, cooled, hardened in a 10 per cent solution of formaldehyde for 48 hours, after which it is remoulded for 5 minutes.
Patent GB-1096587-A (GB)
Title: Process for the production of high density oxide ceramics
IPC: C04B35/64
Filed: 1965-02-19
Abstract: High density metal oxide ceramics are prepared by sintering, in a reducing gas at a pressure of 0.005-2 mm. Hg., a finely divided metal oxide which departs from stoichiometry by having interstitial cations, i.e. cations between fully occupied cation and anion sites. A specified metal oxide is Cr2O3 which may contain up to 2% of oxides of Co, Mn, Fe, V or Ni.  In the example, Cr2O3 of particle size 0.5-1 m  is compressed in a die at a pressure of 750 kg/cm.2, and placed in an alumina crucible in a furnace.  The Cr2O3 is then heated to 500 DEG  C. under vacuum to remove adsorbed air, and then to 1350-1600 DEG  C. under H2 at pressures within the 0.005-2 mm. range.
Patent GB-992971-A (GB)
Title: A method and machine for tying reef knots
IPC: B65B13/26
Filed: 1962-02-26
Abstract: 992,971. Knotter. KNOTEX-MASCHINENBAUGESELLSCHAFT m.b.H. Feb. 26, 1962 [Feb. 24, 1961], No. 73880/62. Heading D1C. A reef-knot is tied in a cord by forming a bight therein, the bight being then looped, the central length of the bight passed through the loop bight to form a second loop, the cord end being drawn through the second loop and the knot tightened. The bight 17 is formed, in a cord drawn by hand around a parcel as in Fig. 3, by a guide head carried at the end of a cam operated lever 11. The loop builder 8 then engages the bight centrally to form the second loop, the means 9 then advancing through that loop (Fig. 4) to take the cord end 5 and draw it down through the loop, leaving the cord as shown in Fig. 15. The cord is drawn back by the roller device through which the cord passes, the knot-tying tension being limited by an adjustable spring controlling the roller. The tension of the cord around the parcel is selected by the adjustment of a spring which determines the pull at which the cheeks of the guide head release the knot.
Patent GB-832802-A (GB)
Title: Improvements in a pneumatic gaging system for obtaining a flow responsive to the difference between pressures at two points in the system
IPC: G01B13/06
Filed: 1957-03-06
Abstract: 832,802. Pneumatic gauging apparatus. SHEFFIELD CORPORATION. March 6, 1957 [March 9, 1956], No. 7398/57. Class 106 (2). A pneumatic gauging system comprises means for obtaining pressures at two points of a first passage 50 whose difference varies with a gauged condition and a differential pressureresponsive device 12 communicating with the first passage 50 at the two points and controlling flow through a second passage including flow measuring apparatus 65 which thereby responds to the pressure difference to give a measure of the gauged condition. The differential responsive device comprises a diaphragm 12, Fig. 1, sealed between two housing sections 10, 11 providing two chambers 15, 16. Stop members 17, 18 move with the diaphragm 12 and bellows 20, 22 seal the members 17, 18 to rings 21, 24 seated against the walls of chambers 15, 16. The interiors of the bellows communicate with the atmosphere through openings 30, 25, opposing pressures are applied to the diaphragm 12 through conduits 38, 40 and the consequential displacement of the member 17 controls the flow from an orifice 35 communicating with a flow measuring passage. In the gauging system of Fig. 2, the pressure difference each side of a restriction 57 (which may be 0.06 inches long and about 0.05 inches in diameter) is determined at a leakage orifice 52 by the displacement of a slidable work contactor 54 in dependence on the height of a workpiece 55. The pressures are applied through the conduits 38, 40 to the diaphragm 12, which controls the flow from the orifice 35 at one end of an independent flow measuring passage including a pressure regulator 60, pressure indicator 61 and a restriction 62 which provides a back pressure chamber between the orifice 35 and restriction 62 in which the pressure varies in accordance with the flow through the orifice so that a pressure indicating instrument 65 gives a measure of the height gauged. In another system, the taper of the workpiece is measured by applying pressures to the diaphragm 12 through conduits 38, 40 derived from flows from two orifices controlled respectively by spaced diameters of the workpiece and the displacement of the diaphragm 12 is amplified by a system in which the diaphragm 12 controls flow from an orifice 35, the rate of flow being measured by a float in a tapered transparent tube.
Patent GB-374164-A (GB)
Title: Improvements in or relating to remote control apparatus for indicating and other devices
Filed: 1931-03-10
Abstract: 374,164. Hydraulic transmission of power. DEHN, F. B., 103, Kingsway, London.-(Askania-Werke Akt.-Ges. vorm. Centralwerkstatt Dessau und C. Bamberg- Freidenau; 87, Kaiserallee, Friedenau, Berlin.) March 10, 1931, No. 7425. [Class 69 (ii).] A device for producing or relaying rotary motion or adjustment at a distance from a master control, applicable for example to the control of one or more branch or indicating compasses from a master compass on an aircraft, comprises an eccentric disc 10 secured to the spindle 3 of the master compass 1 and adapted by its varying position to screen more or less the slots 24 admitting fluid under pressure to three or more pipes 22. These pipes lead to expansible bellows chambers 29 having movable endplates 31 linked to pivoted levers 36 which in turn are linked to a ring 39 through which passes a flexible rod 41 secured to the base 42. The rod 41 engages a fork 43 on the spindle 44 of a compass card 46 cooperating with a fixed pointer 47. The fork. 43 sets itself along a line parallel to the resultant of the forces transmitted by the links 38, which forces are proportional to the pressures in the chambers 29. The cylinder 7 has apertures in the top, and is connected by a conduit (not shown) with the throat portion 26 of a Venturi tube 27 placed in axial alignment with the direction of travel of the aircraft, the suction at the throat causing jets of air to issue from the slots 24, the pressures in the pipes 22 thus varying in accordance with the position of the eccentric disc 10. In a modification the disc 10 covers more or less a series of upwardly directed jets arranged below axially aligned jets in the top of the housing. Figs. 9 and 10 show the eccentric member in the form of a cone 73 with curved sides controlling three jets 74. Circumferentially extending chambers may replace the jets 74. In another modification, Fig. 13, the master control communicates by conduits 81 with chambers 80 having flexible diaphragms 82 linked to a member 85 arranged to slide in a slot 86 in a horizontal disc 87.
Patent GB-657869-A (GB)
Title: Improvements in rail anchors
IPC: E01B13/02
Filed: 1949-03-18
Abstract: 657,869. Railway rail anchors. P. & M. CO. (ENGLAND), Ltd. March 18, 1949, No. 7456. Convention date, May 25, 1948. [Class 104 (ii)] In a rail anchor of the kind comprising a body 14 which extends beneath a rail 13 and bears against a vertical face of a cross-tie T, Fig. 3, one end being formed with a resilient hook portion 10 to grip the top and bottom surfaces of a base flange 12 of the rail, and the other end having a locking-shoulder or abutment 15 for engaging the other base flange 16, the cross-section of the anchor is such that it provides a flat tie-engaging surface for the full height of the body 14, and the section modulus for that portion of the hook lying on the tensioned side of the middle line is substantially greater than that on the compression side thereof. The hooked portion 10 forms an upper jaw which bears on the inclined top surface of the base flange 12 at a location spaced inwardly from the longitudinal edge of the rail, and the inner curved surface 17 of the hook is spaced outwardly from the edge of the base flange to provide a clearance 18 around the lower corner of the flange. The arrangement is such that when the anchor is driven into position it tends to turn about a fulcrum point 19 and press the lower jaw against the base of the rail.
Patent GB-876518-A (GB)
Title: Improvements in or relating to cathode support structures in electron discharge tubes
Inventor: KLEPP GEORGE FRANCIS
IPC: H01J19/42
Filed: 1958-03-10
Abstract: 876,518. Thermionic-cathode tubes. STANDARD TELEPHONES & CABLES Ltd. March 10, 1958, No. 7547/58. Class 39(1). A cathode 1 is fixed at one end to an insulating plate 4 and at the other end passes through an aperture in a further insulating plate 7, a metallic guide 8 being disposed about this aperture to limit enlargement thereof due to wear consequent upon movement of the cathode therein. As shown, the guide 8 merely comprises an apertured plate 8 secured to mica disc 7 but it may further include a metallic tube secured within the aperture of plate 8. A metallic shield may be secured to the plate 8 and be connected to the cathode by tag 9. The mica disc 4 is clamped between a rib 3 on the oval cathode 1 and a metallic tube 5 of circular cross-section which is welded to the cathode. The tube 5 may be replaced by a metal plate welded along a line to a cathode of circular section, Fig. 6 (not shown).
Patent GB-272615-A (GB)
Title: Improvements relating to the retarding or stopping of internalcombustion engines
IPC: F01L13/00
Filed: 1926-03-18
Abstract: 272,615. Doxford, R. P., and Keller. K. O. March 18, 1926. Stopping; reversing.-For retarding or stopping an engine having two working cylinders, 10, 11 in which the compression strokes are out of phase with one another, a conduit 27 connecting the cylinders is controlled by valves 22, 23 so that the wholes or part of the gaseous content compressed in one cylinder is transferred to the other cylinder and added to the content which is to be compressed therein. The arrangement may be used for stopping a marine or other engine prior to reversing. As shown, each cylinder has two opposed pistons 12, 13 and 14, 15, and piston-controlled inlet ports 16, 18 and' exhaust ports 17, 18. The ports 20, 21 leading to the conduit 27 are not covered at any time by the pistons, and the valves 22, 23 are actuated by one or two cams 24 which are normally out of action. The conduit 27 may be provided with a valve-controlled outlet 28 to the atmosphere, and with a valve for controlling the rate of transfer of the charge from one cylinder to the other. The gaseous content compressed in the cylinder 11 may be transferred, at the end of the compression stroke, to a third cylinder or back to the first. In a modification, the two cylinders are constituted by the two ends of a double-acting cylinder. Means may be provided for igniting the cylinder content before, during, or after its transference, so that combustion will increase the pressure against which the engine has to work on its compression stroke.