baber/WOPTO huggingface dataset:
Patent GB-690201-A (GB)
Title: Improvements in or relating to voltage measuring instruments
Inventor: LAURENCE ROGER FREDERIC
IPC: G01R15/08
Filed: 1951-01-17
Abstract: 690,201. Bridge circuits. WINSTON ELECTRONICS, Ltd., and STANLEY ENGINEERING CO., Ltd. Aug. 3, 1951 [Jan. 17, 1951], No. 1267/51. Class 37. An indicating meter for measuring voltage changes comprises an ammeter in series with a resistance connected across a bridge circuit, an arm of which embodies a resistance which varies with variation of current. The instrument shown is for use with electrically-propelled vehicles for indicating the state of charge of the batteries, the zero being suppressed so that a relatively small change in battery voltage gives a full-scale reading. A bridge circuit has resistors R1, R2 in opposite arms and lamps L1, L2 in the other two arms. A D.C. milliammeter 6 with a series resistance 5 is connected across one diagonal of the bridge, the other diagonal being connected across the battery 4 under test. A load resistor 2 is connected across the battery 4 by a switch 3. The lamps L1, L2 are arranged to be at maximum permissible brilliancy at maximum battery voltage, so that the change of potential across the ammeter 6 is greater than that across the load resistance 2 for the relatively small change in battery voltage to be measured. In an alternative arrangement the resistances of the resistors R1, R2 and lamps L1, L2 are so proportioned that at the maximum voltage of the battery a full-scale deflection of the milliammeter 6 is produced. The series resistance 5 is of such value that the milliammeter has twothirds of the full scale current when the battery voltage has fallen to the lowest value to be measured. The control springs of the milliammeter are so biased that the reading is then zero.
Patent GB-1493182-A (GB)
Title: Valve apparatus for braking system
IPC: G01L1/04
Filed: 1975-01-13
Abstract: 1493182 Valves for vehicle braking systems WESTINGHOUSE ELECTRIC CORP 13 Jan 1975 [28 Jan 1974] 1273/75 Headings F2F and F2V A valve assembly for a vehicle braking system is associated with an inverted pendulum 43 which senses deceleration of the vehicle in either direction, relative to a desired rate of deceleration, a signal corresponding to which is supplied by line 26 to a coil 51. The valve assembly consists of a forward valve and a reverse valve side by side, each with a pilot valve outlet 40 and a balance piston 40. The pilot valve 40 is obstructed by a ball 48 as the pendulum rocks thus controlling the brake pressure. The balance piston 95 is tapered to provide a force on the pendulum neutralizing the reaction of the reaction of the escaping fluid past the ball 48. Selection of forward or reverse valves is effected by a solenoid 72 which tilts the frame of the pendulum and also moves a spool valve (Fig. 3, not shown) to direct fluid supply to one valve or the other. In the valve shown in Fig. 4, brake fluid enters by passage 89 and leaves by passage 94.
Patent GB-223453-A (GB)
Title: Improved garment hanger for wardrobes and the like
IPC: A47B61/02
Filed: 1924-01-16
Abstract: 223,453. Rodd, R. J. Jan. 16, 1924. Garment racks.-A longitudinally slotted tubular member of rectangular section is secured to the top of a wardrobe or the like and has a bar sliding therein adapted to support a lower parallel bar which carries the garment hangers. The tubular member a is open at both ends and is secured in position by bands j which also act as stops. The lower rod g is bent upwardly at its inner end h, passes through the longitudinal slot in the underside of the tube a, and is attached to the flat sliding bar b, the front ends of the rod and bar being also connected bv a depending plate e which forms a handle. Rollers may be provided between the fixed tubular member and the sliding bar to lessen friction.
Patent GB-523804-A (GB)
Title: Improvements in or relating to dental forceps
IPC: A61C3/14
Filed: 1939-01-14
Abstract: 523,804. Dental forceps. KOHNER, R. Jan. 14, 1939, No. 1334. [Class 81 (ii)] A dental forceps for extracting teeth from the lower jaw has a projection 4 on the upper handle to support the thumb and a hook 9 on the lower handle to support the little finger. The handles may be bent outwardly at 6 and 8 to fit the hand, and the end of 7 of the upper handle transversely twisted to fit the ball of the thumb. A support 5 for the index finger may be provided on the lower handle.
Patent GB-1359582-A (GB)
Title: Indirectly heated dispenser cathodes for electrical discharge vessels
IPC: H01J1/28
Filed: 1972-01-12
Abstract: 1359582 Thermionic cathode constructions SIEMENS AG 12 Jan 1972 [12 Feb 1971] 1348/72 Heading H1D An indirectly heated dispenser cathode comprises a cylinder 2 having corresponding flanges 4, 5 at each end, a spiral heater 6 inside or outside the cylinders, at least three porous, sintered hollow cylindrical W tubes 7 containing emissive material mounted between the flanges and a metal foil mounting cylinder 11 attached to one end of the cathode. As shown cylinder 11 is secured to another cylinder 2 surrounding the heater 6. The cylinders 1, 2 are of Mo or Ni and cylinder 11 is of Ta. Up to 16 tubes, depending on the required output are mounted in holes in the flanges. Each tube is closed by Mo plugs 8, 9 and filled with BaO protected by paraffin wax in a Mo cup or BaCO 3 . In another embodiment the flanges 4, 5 extend outwardly, the tubes 7 are mounted outside the cylinders 1, 2 and the mounting cylinder is located within cylinder 2. The W tubes are made by applying a suspension to an Al 2 O 3  ceramic rod to form a W coating, heating to 1600 C., removing the coating in the form of a tube and sintering at 2200 C. The rod may be replaced by a Mo tube which is etched away after sintering. The cathode is used in electron beam machining apparatus to excite lasers.
Patent GB-221140-A (GB)
Title: Starting device for aeroplane engines
IPC: B64F1/34
Filed: 1924-01-17
Abstract: 221,140. Soc. Buscaylet PÞre et Fits et Bobin. Dec. 8, 1923, [Convention date]. Turning-gear. - A spring-actuated starting- device for aeroplane engines comprises a movable carriage or barrow 1 having a tubular guide 2 for india-rubber cables 16 or springs, connected by a cable 13 to a leather cap 14 for engagement with the propeller blade 15. The guide 2 is supported by a divided crank-shaft 4 which is angularly adjustable and provided with locking- nuts. The guide 2 is also connected to the carriage 1 by pivoted members 8, 10. The cable 16 passes over loose pulleys 18, 19 and is tensioned by means of a winch 17, the forward end of the cable being held by a detent engaging a loose piston 11 connecting the cables 16, 13. The detents comprise two lugs 22, Fig. 5, pivoted at 23 and having fingers engaging a groove in the piston 11. The lugs carry pins 25 entering slots in a plate 27 movable longitudinally, in order to withdraw the detents, by a rod 29 and lever 30. The carriage is provided with pivoted anchoring devices 32.
Patent GB-1287553-A (GB)
Title: Controlled conveying of packages of flexible tube sections for bag manufacture
IPC: B65H29/66
Filed: 1970-01-12
Abstract: 1287553 Making plastics and like bags WINDMOLLER & HOLSCHER 12 Jan 1970 [28 Jan 1969] 1403/70 Heading B5D [Also in Divisions B8 and H2] The movement of a belt conveyer carrying bundles of flexible tube sections from a tube drawing machine to apparatus forming the base of the bags is controlled by an electric circuit (see Division H2J) so that each bundle deposited singly on the belt which then moves on, or the bundles may overlap each other, or two or more bundles may be deposited on top of one another before the belt moves on. The control circuit contains time delay mechanisms and a counter mechanism. In a second embodiment speed change of the belt utilizes pole change of an A.C. motor.
Patent GB-577764-A (GB)
Title: Improvements in and relating to fittings for window-blinds and the like of the roller type
IPC: E06B9/78
Filed: 1944-07-28
Abstract: 577,764. Window blinds. ALLAN, G. July 28, 1944, No. 14486. [Class 20 (iii)] A cord drum comprising a hub 2, Fig. 3, integral flange 4 and cap 3 is secured to one end of a blind roller 1 by means of prongs 9. A spindle 11 is rotatably mounted within the hub and is provided at its protruding end with a notched disc 12. The end of the spindle is carried in an inclined slot 16, Fig. 2, in a bracket 17 secured to the window frame and a pin 23 on the bracket engages the disc 12 when the spindle is at the bottom of the slot to prevent rotation of the spindle. A washer 14, Fig. 3, is positioned between the disc and the flange 9 and is prevented from rotating relatively to the flange by a projection 15 engaging a slot therein. A spring 18 is confined in the hub and bears against a washer 20 which is prevented from rotating relatively to the hub by a projection 30 engaging a slot 10 in the cap whilst the axial position of the washer may be adjusted by a nut 21. The knotted end of the cord is passed through an aperture 5 in the cap, the aperture having an enlarged portion for the insertion of the knot, and after passing round the drum is passed upwardly through an overhead eye 22, Fig. 2, the free end 6 of the cord then hanging downwardly. In any position of rest, whether the blind is fully up or down or partially down, the spindle is at the bottom of the slot 16 and the drag of the notched disc on the drum due to the spring maintains the blind in this position. The blind is raised by pulling on the end 6, so that the disc 12 is raised out of engagement with the pin 23, and by maintaining such pull on the cord, whilst the blind may be lowered by a pull on the bottom edge thereof, the roller, spring and washers 14 and 20 rotating as a unit.
Patent GB-134131-A (GB)
Title: Improvements in or connected with Connecting-rods for Engines and the like.
IPC: F16C9/04
Filed: 1919-01-21
Abstract: 134,131. Mavor & Coulson, and Moore, M. S. Jan. 21, 1919. Connecting-rods. - In connecting-rods of the kind in which two rcds extending in opposite directions are connected to one crank-pin, the bigends each consist of two member's, all four members being of similar form. The big-ends each comprise inner brasses B<1>, C<1> having feet I turned inward in one rod and outward in the other, and outer brasses B<2>, C<2> held in position by yokes or straps D and rods D<1>. The inner brasses are held together by rivets 5 and are prevented from turning by projections that fit into channels in the ends of the rods.
Patent GB-1115371-A (GB)
Title: Control system for hydrofoil boats
IPC: B63B1/28
Filed: 1965-01-14
Abstract: 1,115,371. Hydrofoil craft. C. HOOK. 14 Jan., 1966 [14 Jan., 1965], No. 1593/65. Heading B7A. [Also in Division G3] In a control system for a hydrofoil boat having laterally spaced adjustable incidence hydrofoils 11, 11<SP>1</SP>, a single sensor 2 adapted to ride on the water surface ahead of the hydrofoil boat transmits through a linkage to servo-mechanisms 8, 8<SP>1</SP> movements which are then conveyed through shafts 9, 9<SP>1</SP> to apply pitch compensation to the hydrofoils 11, 11<SP>1</SP> and spaced apart athwartships sensors 15, 15<SP>1</SP> transmit their differential roll movement through triangular plate 18 to the servo-mechanisms 8, 8<SP>1</SP> to apply roll compensation to the hydrofoils 11, 11<SP>1</SP>. A damper (32), Fig. 2 (not shown) may be included to slow down excessively rapid pitching and pilot intervention may be arranged. A gyroscopic stabilizer arrangement may also be included to reduce roll effects. Electrical signals may also be used to control the servo-mechanisms 8, 8<SP>1</SP>.
Patent GB-366694-A (GB)
Title: Process for the manufacture of press-moulded rubber footwear with high heels
IPC: A43B21/24
Filed: 1931-01-17
Abstract: 366,694. Rubber boots. DUNKER, H. C. L., 1, TegnÚrsgatan, Helsingborg, Sweden. Jan. 17, 1931, No. 1635. [Class 17 (ii).] A filling piece or core 1 of wood cellulose, leather waste, or other fibrous material bonded by rubber or other adhesive is employed for lightness in the construction of the heel part of a press-moulded rubber boot or shoe with high heel. The edge of the upper 6 or lining is drawn over a last 4 and stuck down on an insole 5 on the last. The filling piece 1 covered with rubber 3 is then placed on the heel end of the insole, and an outer sole 8 and rubber band or ring 9 for the galoshing are assembled, as shown and pressed between the last 4 and the sole mould 10 and side moulds which press the sides and back portion.
Patent GB-812377-A (GB)
Title: A regenerative process for spent aqueous alkaline solutions
Inventor: RICHARD GEOFFREY PERCY
IPC: B01D61/44
Filed: 1956-01-18
Abstract: 812,377. Electrodialysis. ESSO RESEARCH & ENGINEERING CO. Oct. 10, 1956 [Jan. 18, 1956], No. 1696/56. Class 41. A process for separating the cationic alkaline constituents from a spent aqueous alkaline solution, e.g. containing mercaptides, comprises applying a positive electrical potential to the solution and applying a negative potential to an aqueous solution of an electrolyte, e.g. caustic soda solution, which is separated from the first solution by a cation exchange membrane, and recovering the constituents transferred to the electrolyte. The anode may be separated by an anionic exchange membrane from the spent solution and an aqueous electrolyte solution, e.g. caustic soda solution, placed in the anode chamber so formed. In one example, spent alkaline caustic solution was circulated through the middle chamber and 0.09N NaOH solution through the anode and cathode chambers at 3.7 to 4.7 volts for a current of 0.54 to 0.91 amps. Current densities of 15 to 25 amps. per square foot are mentioned. A cell for carrying out the process may comprise alternate cation and anion exchange membranes, Fig. 3, arranged in a vessel inert to the material to be recovered, e.g. of iron, stainless steel, ceramic, cement or rubber, and the membranes are separated by thin washers, e.g. rubber or ceramic. Inert electrodes are employed, e.g. of iron, carbon, nickel, copper, graphite, stainless steel or nickel-plated iron. Spent solution is delivered to compartment S1 flowing through each compartment S1, S2 ... in turn to Sn and the electrolyte solution, e.g. of the base recovered, at a concentration of 0.1N to 1N, to the compartments Rl ... Rn or Rn to R1. Alternatively, the spent solution may go from S 1  to S n  to S 2  to S n-1  . . . &c. through non-conducting passages. The electrode compartments A, C may contain any electrolytic solution, e.g. the spent solution or the recovered base, and the anode compartment may contain sodium chloride to give chlorine on electrolysis. The alkali may be the water-soluble bases of Group I elements, the alkaline earths, or ammonia, or may be organic bases. Thus the hydroxides of sodium, potassium, lithium and calcium, and triethanol amine, may be recovered. Where mercaptides are dissolved in the spent solution, hydrogen sulphide is given off. The ion exchange membranes, e.g. of ionexchange resin, may be strengthened with glass wool or fibre, or with metal gauze, and may incorporate a porous material, e.g. wood, plaster, portland cement, natural fibre or ceramic.
Patent GB-1245495-A (GB)
Title: Method and apparatus for cutting out samples from a web of material
Inventor: ADDIS KENNETH JAMES
IPC: D06H7/24
Filed: 1969-01-10
Abstract: 1,245,495. Cutting apparatus. DEERING MILLIKEN RESEARCH CORP. 10 Jan., 1969, No. 1701/69. Heading B4B. A device for cutting-out samples from a moving web of material comprises a number of cutters 54 mounted on a member 20 which is rotatable in a housing 24 under the action of a torsion spring 18, and pins 46 arranged to support the cut sample in the housing. The cutters 54 are each mounted on arms 52 of the member 20 which is rotatably mounted on a shaft 40. A pin 55 extends from one of the arms and engages with one end 74 of the spring 18, the other end of the spring being connected to a ratchet wheel 64; the ratchet wheel is adapted to be rotated, in order to load the spring, by means of a pawl-and-lever device 69, 70. The housing 24 is slidably mounted on pins 32 connected to a handle 16, the housing being urged into the position shown in Fig. 5 by springs 38 thereby maintaining a stop 58 on the housing in engagement with the pin 55. A plate 22, carried by the shaft 40, is fitted with the pins 46. In use, the spring is wound by actuating the lever 69 and the device then pressed against the web of material thereby first causing the pins 46 to pierce the material and then, upon further pressure on the device, causing the housing to move upwardly against the action of the springs 38 so as to allow the stop 58 to release the pin 55. The blades are then rotated rapidly to cut a circular sample from the web.
Patent GB-1385131-A (GB)
Title: Detergent compositions
IPC: C11D3/00
Filed: 1973-01-12
Abstract: 1385131 Detergents containing polymeric builders ICI AMERICA Inc 12 Jan 1973 [18 Feb 1972] 1770/73 Heading C5D A detergent composition for cleansing and laundering operations comprises an organic water-soluble detergent surfactant and, as polymeric builder, a water-soluble salt of a maleic acid-vinyl alcohol copolymer, derived from a prepolymer in which vinyl acetate is the precursor for the vinyl alcohol moiety. The salt of the copolymer may be an alkali metal, ammonium or substituted ammonium salt. The copolymer has a molecular weight of 500 to 50,000 and a ratio of maleic acid to vinyl alcohol of 2 : 3 to 3 : 2. The copolymers are prepared by the hydrolysis of a maleic anhydridevinyl acetate copolymer by means of an alkali metal hydroxide or NH 4 OH and the builder also contains an acetate, e.g. sodium acetate produced by the hydrolysis step. The surfactant may be anionic, non-ionic, zwitterionic, ampholytic and mixtures thereof. Detergent compositions in liquid or powder form contains (A) 3-35% by wt. of detergent surfactant (B) 5-60% wt. of copolymer builder (C) 0-2% carboxymethyl cellulose (D) 5-20% alkali metal silicate (E) 0-60% alkali metal sulphate (F) 0-10% bleaching agent.
Patent GB-1376871-A (GB)
Title: Anti-dirt sleeve for isostatic press
IPC: F17C1/00
Filed: 1973-01-12
Abstract: 1376871 Pressure vessel NATIONAL FORGE CO 12 Jan 1973 [29 Feb 1972] 1821/73 Heading B1X A device for entrapping dirt in a hollow pressure vessel of the type having a bottom opening, a bottom closure for the opening, and a resilient seal between the bottom closure and the interior wall of the vessel is characterised by a disc supported above said seal and having an annular upturned portion at the periphery thereof of a diameter substantially the same as the internal diameter of the vessel, whereby said upturnd portion makes a close fit with the interior wall surface of the pressure vessel, and preventing thereby said dirt from reaching said seal. As shown, the plug 12 of a vessel 10 has a disc 18 with upturned edges 20. The disc is provided with hollow projections 24, 26, 28 so arranged so as to permit equalisation of pressure above and below the disc, and with pipes 42, 54 for use in filling and emptying the vessel.
Patent GB-274586-A (GB)
Title: Improvements in heat generating apparatus of the oil burning type
IPC: F23K5/02
Filed: 1926-01-22
Abstract: 274,586. Maddrell, W. J. Jan. 22, 1926. Spray burners; vaporizing-apparatus.-Oil supplied without previous heating to a well 8b in a burner 8 is vapourized and projected by steam generated in a boiler comprising a water chamber 1 having spaced hemispherical walls 1a, 1b surrounding the burner; an annular steam chamber 2e having a central passage 3 through which the combustion gases from the burner pass to a flue 4, steam generating tubes or coils 12 arranged in the passage 3 and connecting the water chamber to the steam chamber 2c, and a superheating chamber 6 surrounding an elbow in the flue 4. The chamber 1 is connected by a pipe 7 regulated by a needle-valve 22 to a steam chamber 8a formed in the burner below the oil well 8b. The steam chamber 8a has a, discharge nozzle 8d extending above the level of the oil in the well 8b. The burner is started by burning oil in a shallow receptacle 8c at the top of the burner. When steam is generated the discharge of steam through the nozzle 8d causes a combustible mixture of oil vapour and steam to be discharged into the passage 3 through a nozzle 8e in the burner and a cylindrical passage 1f in the water chamber. The elbow of the flue 4 is provided with a number of iron points 4b which become incandescent and cause dissociation of the steam. The main fuel tank 15 is connected to the oil well 8b through a closed service tank 16 and a control device 20 such as described in Specification 266,013. The tank 16 is fitted with an overflow pipe 18. Fig. 4 shows a. modification in which the fuel is projected by compressed air instead of steam, the air being heated by passing through a tank 24 arranged in the path of the combustion gases. Reference has been directed by the Comptroller to Specifications 11517/88, 4504/89, 6333/89, 16987/89, 829/91, 13584/91, and 2204/92.
Patent GB-1025073-A (GB)
Title: Air diffusers
IPC: F24F13/078
Filed: 1963-01-15
Abstract: 1,025,073. Ventilators. TITUS MANUFACTURING CORPORATION. Jan. 15, 1963 [May 14, 1962], No. 1851/63. Heading F4V. In a slot diffuser a flange 27 defines one edge of the slot and a pivoted vane 21 extending for substantially the whole length of the slot determines the air discharge pattern. As illustrated, a double diffuser straddles a lighting fixture and the air flow to the limbs are controlled by dampers 32 and 33 pivoted at 35<SP>1</SP> and operated through the diffuser slots by rods 36 and 38. The limbs have trapezoidal side walls 5, 6, 11 and 12 which converge towards the slots so that their cross-sectional areas are substantially constant and together do not exceed the cross-sectional area of a cylindrical air supply neck 15<SP>1</SP>. In another embodiment, Figs. 3 and 4 (not shown), air is supplied to a single slot via a horizontal oval neck 53 and the air flow rate is controlled by a vertical plate 54 pivoted to a pair of parallel horizontal arms 55 and 56.
Patent GB-162066-A (GB)
Title: Improvements in propellers
IPC: B63H1/16
Filed: 1920-01-20
Abstract: 162,066. Okum, M. S. Jan. 20, 1920. Screw and like propellers.-A propeller for use in air or water comprises a shaft 1 having a boss 2 which carries a hollow cone 4 having radial blades 3 in its forward end. The pressure of the fluid due to centrifugal force acts on the inner wall of the cone.
Patent GB-253024-A (GB)
Title: Improvements in or relating to toasting forks
IPC: A47J37/06
Filed: 1926-01-23
Abstract: 253,024. Black, A. Jan. 23, 1926. Toasting-apparatus.-A reversible toasting-fork has a telescopic wire handle consisting of an elongated U-shaped, or rectangular portion a in which slides a central rod b which carries the bearings b<4> for the swinging prong member c. The wire forming the portion a has its ends a' coiled to form a bearing for the rod b, the end of which is looped at b<1> to engage the part a. The ends of the wires b<2> are coiled around the rod b.