baber/WOPTO huggingface dataset:
Patent GB-767581-A (GB)
Title: Improvements in the automatic correction of synchronous electric clocks or like time-indicating or time-recording devices operated from a.c. supply mains
Inventor: PIZZEY CYRIL FRANK
IPC: G04C15/00
Filed: 1951-01-29
Abstract: 767,581. Automatic speed control systems. ELLIOTT BROS. (LONDON), Ltd. Jan. 29, 1952 [Jan. 29, 1951], No. 2240/51. Class 38 (4). [Also in Group XVIII] The synchronous electric clocks 1 are normally supplied from the A.C. supply means 6, 7, 8 via a frequency changer comprising a stator 3 and a rotor 4 the single-phase winding 9 of which is connected to slip rings 10, 11. The rotor 4 is normally stationary and is coupled to a three-phase motor 14. A selected synchronous electric clock is located in an error detector 17 and is therein continuously compared with a standard clock 16. The arrangement is such that an output signal is produced from the detector 17 when the error of the selected synchronous clock reaches a predetermined maximum so that the motor 14 is energized to drive the rotor 4 for a predetermined number of revolutions which is the product of the maximum error in seconds and the desired. frequency, in cycles per second, of the A.C. supply. The rotor 4 is driven in the appropriate direction to reduce the error by increasing or decreasing the frequency of the A.C. supply to the clocks 1. An auto-transformer may be connected across the slip rings 10, 11 so that the voltage of the supply to the clocks is automatically corrected when the frequency changer 2 is in operation. The error detecting means 17 may comprise a differential gear the sun-wheels of which are respectively driven by the standard clock and the selected synchronous clock and the planet carrier of which moves if the standard clock and synchronous clock are not in agreement.
Patent GB-236473-A (GB)
Title: Improvements in potential indicators
IPC: G01R19/155
Filed: 1925-01-26
Abstract: 236,473. Parisian, R. J. Jan. 26, 1925. Electromagnetic current and pressure meters.-A potential indicator for both direct and alternating currents comprises an insulating case 1 in which a solenoid coil 7 on a spool 4 is so mounted as to leave chambers above and below the spool 4 within the case. A soft-iron core 12 adapted to slide in the spool 4 is provided with a head 13 carrying a pointer 15 adapted to travel in a longitudinal slot in the case 1, and a spring 14 is arranged between the head 13 and the spool 4. Indicating scales for direct and alternating currents respectively are arranged at opposite sides of the slot in the case. Leads 8 and 9 for the solenoid are connected in the lower chamber to flexible conductors 10. The casing is closed by caps 2, 3.
Patent GB-122913-A (GB)
Title: Improvements in Jigs.
Inventor: HUME WILLIAM CURRY
IPC: B64C3/18
Filed: 1918-02-08
Abstract: 122,913. Hume, W. C. Feb. 8, 1918. Cramps and clamps; vices.-A cramp or vice particularly for use in the manufacture of ribs or other parts of air-craft comprises an inner former and outer movable jaws operable by levers to clamp the rib &c. against the former. In one form, Figs. 1 and 2, the work 5 is gripped between a fixed inner former 2 secured to the base 1 and movable jaws 3 which are operated by levers 4 pivoted to the base 1 and tenoned into the jaws 3 and connected thereto bv screws 3<b>. A footpiece 6 arranged below the former 2 is preferably provided to raise the work 5 so that webs or other parts 7 may be secured thereto, and the jaws 3 are provided with recesses 3a to clear the foot-piece 6. Links may connect the levers 4 for simultaneous operation, and the jaws 3 may be in sections, each provided with one or more operating levers. In a modification, the levers 4 are arranged beneath the base 1 and are connected to the jaws 3 by pins extending up through slots in the base.
Patent GB-620805-A (GB)
Title: Improvements in or relating to low tension arc igniters for combustion chambers, e.g., of gas turbines
IPC: H01T13/30
Filed: 1947-01-24
Abstract: 620,805. Lighting burners. PARSONS & CO., Ltd., C. A., and JEFFERSON, J. L. Jan. 24, 1947, No. 2304. [Class 75(iii)] A low-tension arc igniter, particularly for a combustion chamber of a gas turbine, comprises a central electrode 5 of steel or other material of high electrical conductivity, sliding in an insulating bush 4 in a tubular conductor 3 of steel or other suitable material, the electrode 5 having an insulating handle 7 through which passes a flexible connection 8 to the electricity supply. The igniter is operated by bringing the electrode 5 into contact with a projection on the end of the tube 3 by pushing in the handle 7 against the pressure of a spring 11, which, on releasing the handle 7, moves the latter quickly outwards to cause sparking between the said projection and the electrode 5. The body 3 may be mounted in a tubular guide attached to the shell of the combustion chamber so that after ignition has been effected the igniter may be withdrawn out of the combustion space.
Patent GB-418653-A (GB)
Title: Improvements in and relating to impregnating compounds for insulating purposes
IPC: C09F1/00
Filed: 1933-01-24
Abstract: Resins are freed from oxidizable impurities having a boiling point above 170 DEG  C. by vacuum heating, for example at a temperature of 120 DEG  C. at a pressure of about 10 m.m.
Patent GB-261329-A (GB)
Title: Method of and apparatus for preventing the contamination of the lubricating oil by fuel in internal combustion engines
IPC: F01M11/00
Filed: 1926-01-27
Abstract: 261,329. Naamlooze Vennootschap Hollandsche Ijzerhandel. Nov. 14, 1925, [Convention date]. Cylinders receiving liquid fuel.-Contamination of the lubricating oil by unvaporized drops of liquid fuel reaching the cylinder wall above the piston is prevented by associating with the inlet valve a deflecting surface arranged in the compression space in such a manner as to deflect the drops on to the piston head. The deflector may consist of a dropping-wall 8, Fig. 1, around the inlet valve 5, or a screen-like wall 9, Fig. 2- Where the inlet and exhaust valves 5, 6 are at the side of the cylinder, Fig. 3, the unvaporized fuel strikes and flows over an inclined heated surface 6<a> and thence over the deflector 11. The fuel may become completely vaporized in flowing over the deflectors. The cylinder head 7 may be integral with the cylinder wall. The Specification as open to inspection under Sect. 91 (3) (a) describes also a modification in which the valve 5, Fig. 3, has a wall similar to that shown in Fig. 1 and the deflector 11 is dispensed with. This subject-matter does not appear in the Specification as accepted.
Patent GB-752800-A (GB)
Title: Improvements relating to back-plates or clamping plates for use in conjunction with hook fasteners for wearing apparel
Inventor: WOOD HERBERT HOWARD
IPC: A44B13/00
Filed: 1954-01-27
Abstract: 752,800. Hook-fastenings. WALKER, Ltd., T. Dec. 23, 1954 [Jan. 27, 1954], No. 2457/54. Class 43. In a hook-fastening for garments such as the waistband of trousers, of the kind comprising a front plate 1 formed with a hook 2 and prongs 3 which are pushed through the material of the waistband and through slots 6 provided in a back-plate or clamping-plate 5, and are then bent upon the back-plate to hold the hookplate in position, the back-plate is provided with additional apertures arranged to receive the pointed ends of the prongs when the latter are bent over or clenched against it. In the example the prong-receiving slots 6 are provided towards the corners of a substantially square back-plate 5, and the additional apertures are provided by the radial portions of a large central aperture 7 of cruciform shape, the triangular portions 9 thus defined by the radial apertures being bent inwards at an angle of about 45 degrees to form integral teeth which are embedded in the waistband when the back-plate is secured. The metal 8 which separates each slot 6 from a radial limb of the cruciform aperture is depressed inwards in the same direction as the central triangular teeth 9, so that when the prongs 3 are bent downwardly they lie substantially flush with the outer face of the plate 5.
Patent GB-725676-A (GB)
Title: An improved method of making sintered steel parts
IPC: C22C33/02
Filed: 1953-01-28
Abstract: A method of making steel parts, such as chain sprocket wheels, consists in sintering iron compacts containing copper without increasing their carbon content, cold sizing the compacts to increase their density to 6.8-7.6 gms./c.c., carburizing a surface layer at a temperature lower than the sintering temperature and finally hardening.  The compacts before carburizing have a carbon content of 0.25 per cent.  Stearin, and up to 15 per cent of metals, such as cobalt, manganese and silicon, 0.5 to 4 per cent copper and 4.5 per cent nickel, may be added to the iron powder.  The powder is pressed at 3 to 8 tons/sq. cm. and sintered at 1050-1350 DEG  C. for 2 1/2 hours. The compacts are then cooled, sized and if necessary machined, e.g. threaded.  The carburization takes place in a cyanide salt bath at 850 DEG  C. for 1-1 1/2 hours.  The carburized compacts are coined, if necessary, and hardened in oil.
Patent GB-1488632-A (GB)
Title: Mixing heads or machines for the mixing of two liquids under pressure
IPC: B01F23/47
Filed: 1976-01-22
Abstract: 1488632 Mixing apparatus SECMER SA 22 Jan 1976 [28 Jan 1975] 02519/76 Heading BIC  A mixing head for at least two components (e.g. of a plastics foam) has an injection valve for each component, material being supplied from chambers 11a to upwardly directed outlet orifices 11c, streams from which impinge on the concave end 5c of a mixing chamber cleaning rod 5; the mixture is discharged at 49 e.g. to a mould. When the rod 5 is lowered by a fluid operated piston 3, a cam surface 5a on the rod 5 forces the pins 37, 38 outwards, causing the levers 41, 42 to rock about pivots 43, 44 and move the injection valve members 16 inwards. The surfaces 17c then seat on the surfaces 11b, closing the outlet 11c, while the surfaces 17b separate from the surfaces 15c so that material from chambers 11a can pass to chambers 15d, 19 and thence to a recycling conduit. A screw 50, 51 enables each injection valve to be maintained permanently closed. In a modification (Fig. 3, not shown) the amount by which each valve opens, and hence the amount of the corresponding component supplied, can be adjusted by altering the travel of the lever 41 or 42, which instead of bearing directly on the pin 37 or 38 does so through an intermediate lever, the distance of the point of contact between the levers and their fulcra being adjustable.
Patent GB-1037492-A (GB)
Title: Bottle closure
IPC: B65D55/08
Filed: 1965-01-20
Abstract: 1,037,492. Bottle closure. A. GUALA, G. P. GUALA, and R. GUALA, [trading as ANGELO GUALADI ANGELO GUALA & CO]. Jan. 20, 1965 [Jan. 25, 1964], No. 2536/65. Heading B8T. A plastics closure device for a bottle consists of a cap 1 with a skirt 1b having an internal rib 2 adapted to fit below a bead 11 on the bottle neck 10 and an annular collar 7 with an inwardly extending flange 8, Fig. 2 (not shown), which fits into a groove 4 located on the outside of the skirt and slightly below the internal rib, so that the annular collar may be engaged in the cap prior to placing the device on the bottle, the closure being removed by breaking the annular collar. A conical taper 5, Fig. 2 (not shown), on the cap 1 enables the flange 8 on the rigid plastic collar 7 to be snapped into the groove 4 and since this groove lies below the rib 2, the collar does not resist the deformation of the cap which occurs when the rib 2 is pushed over the bead 11 on the bottle neck. In order to remove the cap 1, a tab 9 is pulled upwardly thereby rupturing the collar 7 and then a tab 6 is lifted to pull the cap over the bead 11. The upper edge of the skirt groove 4 consists of a series of part spherical projections 3a, Fig. 1 (not shown), which make the cap 1 pliable. As a modification the projections 3a may be semi-cylindrical and may extend over the skirt 1b of the cap up to the level of the cap bottom la.
Patent GB-639196-A (GB)
Title: Improvements in or relating to mechanical grates
IPC: F23H11/04
Filed: 1947-01-27
Abstract: 639,196. Travelling grates. VITKOVICKE ZELEZARNY, NARODNI PODNIK, and HONSIG, F. Jan. 27, 1947, No. 2554. Convention date, Jan. 25, 1946. [Class 51 (i)] [Also in Group XXX] A travelling grate comprises a series of overlapping grate bars divided into two systems, each carried by a separate pair of chains, each system being driven separately at a varying speed so that the bars reciprocate mutually whilst the grate is travelling, one system moving at a maximum speed when the other is moving at a minimum speed. As shown in Fig. 2, supports for one system of grate bars are carried on chains a driven by pulleys h and gears t ; alternate supports g are carried on chains b driven by pulleys e and gears r. Pulleys o<SP>1</SP> and o<SP>11</SP> are driven by a variable speed gear o. In a modification, Fig. 3, variable speed drive is obtained from a motor m driving a friction wheel cc which reciprocates along the surfaces of cones dd, hh. In a further modification the drive may be obtained from electric motors controlled by time switches.
Patent GB-594554-A (GB)
Title: Improvements in or relating to refrigerators
IPC: F25D25/00
Filed: 1945-02-01
Abstract: 594,554. Refrigerators. EARLE, G. L. C. Feb. 1. 1945, No. 2566. Convention date, Jan. 15, 1944. [Class 29] A lower part 20 of the refrigerator containing drawers 26 cooled by cold air descending from the evaporator 28 projects forwardly and forms a table surface 23 in front of the upper part 10, and the evaporator shell extends below the level 46 of the bottom of the door and has ledges 36 supporting a food basket 35. A baffle 50 at the side of and spaced from the evaporator 28 has its upper end terminating short of the top of the refrigerating chamber and curved inward towards the evaporator, to separate the rising warm air from the cold air descending around the evaporator. Ice trays 40 are provided within the evaporator, and shelves 45 in the food storage space. The refrigerator is surmounted by a cupboard 12. Specification 581,121 is referred to.
Patent GB-383481-A (GB)
Title: Improvements in and relating to the lubrication of engines and especially internal combustion engines
IPC: F16N39/06
Filed: 1932-01-28
Abstract: 383,481. Lubricating engines. BIRKIGT, M., Rue du Capitaine Guynemer, Bois-Colombes, Seine, France. Jan. 28, 1932, No. 2615. Convention date, Nov. 12, 1931. [Classes 12 (ii) and 12 (iii).] In order to shield the oil collecting in the crank case c of an internal-combustion engine from the effects of air eddies produced by the movements of the cranks &c., the collecting space h is separated from the upper part of the casing by an apertured screen g or by a system of partitions, baffles, or louvres, a gauze strainer i being arranged below the screen, the apertures in which latter are much larger than the interstices of the strainer. Oil draining from elements located outside the crank case returns into the casing through conduits j which open between the screen g and the strainer i. Where separate chambers are provided for each crank, each chamber is provided with a screen, with a single collecting chamber and strainer beneath. Oil withdrawn from the space h by a pump f is delivered to a tank e, whence it is supplied to the engine parts by a pump d.
Patent GB-534373-A (GB)
Title: Improvements in or relating to kilns for the treatment of malt or the like
Filed: 1940-02-12
Abstract: 534,373. Drying systems. THERMO-TANKS, Ltd., and MANN, L. W. Feb. 12, 1940, No. 2637. [Class 34 (ii)] The air circulation pipes of a number of drying kilns in each of which air is circulated through a drying floor 3 back to a heating chamber 1 by a fan F are connected by a pipe 8 to permit the withdrawal of air from one kiln for supply to another. To withdraw air from the top of say the left-hand kiln, valves C, D<1> in the circulation pipes are closed and valves D, E are opened, and, to withdraw air from the heating chamber of the kiln, valves A, B in the fresh air supply pipes and the valve D are closed and the valves C, E are opened. The valves may be controlled by thermostatic or humidistatic means in the chambers or air passages.
Patent GB-1411005-A (GB)
Title: Drive regulation and delay control in display systems
IPC: H01J17/49
Filed: 1973-01-18
Abstract: 1411005 Alpha numeric displays and circuits therefor BURROUGHS CORP 18 Jan 1973 [13 July 1972] 2711/73 Heading G5C Display apparatus comprises a flat gas discharge panel including a plurality of cathode arrays with corresponding cathodes interconnected and anodes for each array; a power supply Vss; anode and cathode drivers 200, 250 coupled to each anode 90 and group of interconnected cathodes 30A, 30D; a source 255 of input signals coupled to each cathode driver; a first bus 180 coupled to the power supply Vss by a reverse biased Zener diode 185 and, via separate resistors 295 to the output of each cathode driver; a second bus 170 connected to each cathode driver to supply bias potential; an active circuit element 165 coupled to the second bus 170 for maintaining bias; a capacitor 175 between the first and second buses; a third bus connected to element 165 and to the cathode drivers to supply feedback signals to element 165; and an impedance 167 between the capacitor 175 and element 165 for charging the capacitor proportionally to the number of cathodes energized to regulate the potential across it so that the firing threshold of the selected cathodes is exceeded. The circuit compensates for variations in the firing potential due to gas pressure and temperature and also maintains a given ionization potential. The display panel comprises an insulating base 20 carrying a plurality of conductors 30A ... 30G; a layer of insulation 40 having a plurality of groups of apertures 50A ... 50G, corresponding apertures exposing portions of the same conductor, groups of cathodes 60A ... 60G on the layer 40 and in contact with one conductor 30. A front plate spaced from base 20 by a member 110 supports anodes 90, each of which overlaps a group of cathodes. The switches 200 and drivers 250 include MOS or FET devices and may all be formed on a single chip.
Patent GB-126717-A (GB)
Title: Improvements in the Production of Nitrogen-oxygen Compounds and in Apparatus therefor.
Inventor: GOOLD-ADAMS HENRY EDWARD FANE
IPC: C01B21/26
Filed: 1917-02-24
Abstract: 126,717. Adams, H. E. F. Goold-, Partington, J. R., and Rideal, E. K. Feb. 24, 1917. Thermometors and pyrometers.-The temperature of a catalyst, preferably a platinum gauze, used in the oxidation of ammonia, is regulated by the aid of a standard source of light such as an electric lamp supplied with constant voltage current. The apparatus described comprises an electrically-heated platinum screen e and an arrangement for comparing the light emitted by the screen with that from a standard lamp, for instance a glass screen or prism k and an eyepiece i.
Patent GB-556465-A (GB)
Title: Improvements in or relating to electric current collecting brushes or the like
IPC: H01R39/20
Filed: 1942-03-02
Abstract: 556,465. Brushes for dynamo-electric machines. MORGAN CRUCIBLE CO., Ltd., and HEWS, C. J. March 2, 1942, No. 2763. Drawings to Specification. [Class 35] The brushes for commutators, slip rings &c. are made in a number of layers of different composition disposed transversely to the length of the brush perpendicular to its working face. In one example, the main body of the brush is made of carbon or metal and graphite, and the working face of a material containing silver &c. to improve its working characteristics. The brush may be made by moulding from powdered materials in successive layers, with agglutinant where required, and consolidating under heat and pressure. Alternatively the successive layers may be made separately and subsquently assembled to form a composite block.
Patent GB-445969-A (GB)
Title: Clocks
IPC: G04B37/00
Filed: 1935-01-28
Abstract: 445,969. Clocks. WILLIAMSON CLOCK CO., Ltd., and SEAGER, J. H., 81, Farringdon Road, London. Jan. 28, 1935, No. 2774. [Class 139] In a clock the curved glass 3 is held to the solid front 1 of the clock by members (clips or screws 4) angularly spaced around the edge of the glass, there being a small hole in the centre of the front for the passage of the hand arbors. The movement is attached to the rear of the part 1 and the clips 4 are held by screws inserted from the back of part 1. Washers may be inserted between the heads of clips 4 and the front 1. The latter may be the same size or larger than the glass or recessed to receive a curved or flat glass. The clips may form some of the hour marks. The marks or chapters 10 may be made on the front 1 or on the glass. In a bracket clock as shown in Fig. 4, two of the clips 4 are rigid with the bracket 12. Specification 364,296 is referred to.
Patent GB-984024-A (GB)
Title: 17-methyl-d-homoandrost-9(11)-ene derivatives and their preparation
IPC: C07J71/00
Filed: 1962-07-18
Abstract: The invention comprises compounds having the following formulae <FORM:0984024/C2/1> wherein R is a hydrogen atom or an alkanoyl group having not more than 8 carbon atoms. These compounds are obtained by subjecting a 17-oxo compound having the formula <FORM:0984024/C2/2> to a Grignard reaction to obtain the 17a -methyl - 17b  - hydroxy compound which on dehydration yields the D 16-17-methyl compound. Dehydration may be effected with phosphorus oxychloride. Specification 873,019 also is referred to.
Patent GB-1033242-A (GB)
Title: Electrical discharge treatment of plastics films
IPC: B26F1/28
Filed: 1964-01-22
Abstract: 1,033,242. Printing apparatus. E. I. DU PONT DE NEMOURS & CO. Jan. 22, 1964 [Jan. 22, 1963], No. 2841/64. Heading B6C. [Also in Division H1] In a continuous process for treating a plastics film to render the surface adhesive to printing &c. the film is passed through two elongated zones of electrical discharge disposed transversely of the axis of film travel and at an angle to one another. In one arrangement, Fig. 1 (not shown), the film F passes between pairs of electrodes 1, 2 and 3, 4 disposed at equal angles α and # to the axis. In the event of a puncture occurring, the area of film not treated is reduced to a small region surrounding the puncture. The angles α and # may be varied within the range from 30 to 88 degrees. The electrodes may be of stainless steel, aluminium or brass in the form of rods, bars or strips or may be hollow tubes through which gases are introduced into the treating zone. In a modified arrangement Fig. 4 (not shown), the backing electrode is an earthed drum. Pairs of elliptical electrodes may be used to treat film in tubular form.
Patent GB-1125405-A (GB)
Title: Magnetic drive device
IPC: H02K19/10
Filed: 1966-01-21
Abstract: 1,125,405. Electric motors; motor-driving arrangements. GLOBE INDUSTRIES Inc. 21 Jan., 1966 [2 Feb., 1965], No. 2868/68. Heading H2A. A central core member 14 having slots 16 and wound to provide, e.g. four poles, has secured to it an outer yoke ring 22 provided with outwardly-directed teeth 24. A surrounding unwound housing member 28 secured to a shaft 2 mounted in bearings 4, 6, in the core member is provided with internally-toothed laminations 34; the number of yoke ring teeth exceeds the number of housing teeth. As shown, the outer parts 28, 34, constitute the rotor, and the inner parts 14, 22, the stator. When the stator is supplied with A.C., and an out-ofphase relationship is established in the current supply to the winding, a rotating magnetic field is created, but the rotor rotates at a fraction of the synchronous speed. The reduction ratio is given by: the smaller number of teeth divided by the difference in numbers of teeth. For D.C. excitation, a plurality of coils are provided in the slots 16 and are pulsed with D.C. in a sequential manner. Preferably the difference in numbers of teeth on the yoke ring and housing is equal to the number of stator magnetic poles, or a multiple of this number. The member described as stator may rotate, and the " rotor " remain stationary. Both members may rotate, two output shafts then being provided.