baber/WOPTO huggingface dataset:
Patent GB-123102-A (GB)
Title: Improvements in the Manufacture of Steel.
Inventor: TURNER WILLIAM LAWRENCE
IPC: C22C33/04
Filed: 1917-03-26
Abstract: 123,102. Turner, W. L. March 26, 1917. Alloys; thermo-aluminic and like mixtures and metal-extracting processes. - High-speed tool steels and other alloy steels containing chromium, vanadium, tungsten, titanium, or the like are made by a single alumino-thermic reaction of a charge containing aluminium, magnesium, silicon,. or like reducing element, and ores, oxides, or salts of chromium &c., iron, and carbon, without the use of a separately-prepared bath of molten iron or steel. The carbon may be present as ferro-chromium or other alloy, and some highspeed or like steel scrap may be used. For example, a steel alloy containing carbon, cobalt, chromium, vanadium, tungsten, and manganese may be prepared from a charge containing separately-prepared alumino-thermic iron, tungsten and cobalt mixtures, wrought iron or mild steel, carbon-free ferro-vanadium, and ferro-chromium containing about 8 per cent of carbon.
Patent GB-889568-A (GB)
Title: An improved device for agitating containers
IPC: A47J43/042
Filed: 1960-02-08
Abstract: 889,568. Agitating containers. HISCOX, A. E., and RUFFLE, L. G. June 22 1960 [Feb. 8, 1960], No. 4331/60. Class 86. In a paint shaker the container 8 is clamped to a platform 4, one end of which is supported by swinging links 6 and the other by cranks or eccentrics 5 driven by a motor 1.
Patent GB-963193-A (GB)
Title: Apparatus for magnetically separating solid magnetic particles from a fluid current
IPC: B03C1/032
Filed: 1962-02-05
Abstract: 963,193. Magnetic separators. G. H. JONES. Feb. 5, 1963 [Feb. 5, 1962; May 11, 1962], Nos. 4331/62 and 18115/62. Heading B2J. In apparatus of the type described in Specification 768,451 for separating magnetic particles from a fluid current in which the fluid is passed between parallel plates 14 subjected to a magnetic field, means are provided for cyclically setting up the magnetic field and simultaneously feeding the fluid between the plates, applying a washing fluid to the plates while still under the influence of the magnetic field and applying a high pressure scouring fluid to the plates and simultaneously reducing the field to zero or a small magnitude in the opposite direction to remove the magnetic particles. The operations of the apparatus are cyclically-controlled by a cam-shaft 24, the coils around polepieces 32, 33 being supplied with D.C. or A.C. for energizing and deenergizing the plates 14. As shown in Fig. 5, the polepieces are wound with main coils 41 and reverse coils 42. During the operation of feeding the particle-carrying fluid from hopper 10, through the plates 14 and into the compartment X of a tank 30, the magnetism is boosted through coils 46 and 47 to saturate the plates and then through coil 46 to maintain the field strength. The magnetic field is maintained while the washing fluid is then fed from a chest 17 and through the plates to deliver non-magnetic particles to the compartment Y. During the next operation of scouring in which a high pressure liquid from the chest 17 is directed through the plates and into the compartment Z, the coils 41 are switched off and the coils 42 energized so as to rapidly reduce the magnetic field; alternatively the coils 42 may be continuously in circuit. Modified diagrams show only one set of coils 41 which are supplied with current in alternating directions controlled by the cam-shaft. In these modified diagrams, the coils 41 are shunted by a non-linear resistance 72, Fig. 6 (not shown) so as to protect the rectifier 48 from surges in the field coils; alternatively, the non-linear resistance may be replaced by two oppositepoled silicon controlled rectifiers 80, 83, Fig. 7 (not shown). The plates may be de-magnetized by use of A.C. instead of D.C.
Patent GB-872440-A (GB)
Title: Process for preventing or reducing scale formation in heaters for alkaline solutions
Inventor: WILSON LESLIE EWART
IPC: C02F5/10
Filed: 1957-02-08
Abstract: 872,440. Preventing scale formation. GEIGY CO. Ltd. April 30, 1958 [Feb. 8, 1957], No. 4333/57. Class 123(1) Scale formation in heat exchangers for heating aqueous solutions of sodium hydroxide and/or sodium carbonate containing more than 1% by weight of the alkali and employed in the Kier boiling of cellulosic textile materials such as cotton is prevented or reduced by adding to the solution from 0À001 to 0À05 % by weight of a sodium salt of a condensation product of naphthalene sulphonic acid and formaldehyde. Specification 7137/13 is referred to.
Patent GB-831606-A (GB)
Title: Improved escutcheon
IPC: E05B15/02
Filed: 1956-02-11
Abstract: 831,606. Keyholes, escutcheons. SPEKE DEVELOPMENTS & PATENTS Ltd., and KUHN, M. W. Feb. 11, 1957 [Feb. 11, 1956], No. 4351/56. Class 44 An escutcheon comprises a  cylindrical hollow body a tapering slightly from front to rear, and a face plate integral with the front end of the body and extending therefrom to form a flange d; a key-hole being provided in the face plate. Rearwardly projecting guide walls g are provided. In modifications, Figs. 4-8 (not shown), longitudinally extending ribs on the body form an outer serrated surface, and rearwardly extending teeth provide additional securing means. To assist secure fixing, longitudinal slots h are cut in the body.
Patent GB-557757-A (GB)
Title: Improvements in or relating to lubricants for cutting tools
Filed: 1942-04-01
Abstract: 557,757. Cutting oil compositions. WAKEFIELD & CO., Ltd., C. C., EVANS, E. A., and HITCHCOCK, N. E. F. April 1, 1942, No. 4369. [Class 91] A cutting oil composition comprises a mixture of lubricating oil, and minor proportions of a halogenated organic compound which is non- volatile at working temperatures and a sulphured base comprising a fat, fatty acid, fatty oil or wax containing not less than 10 per cent. by weight of combined sulphur and also not less than 10 per cent. by weight of free sulphur on the weight of the fatty oil &c. as defined and prepared in Specifications 557,755 and 557,756. The halogenated organic compound may be a halogenated aliphatic hydrocarbon or a halogenated aryl compound or it may contain heterocyclic groups. Compounds specified comprise chlorinated wax, diphenyl methyl chloride, triphenyl methyl chloride, benzophenone dihloride, naphthalene tetrachloride, chloro cyclohexane, and the nitro-halogen organic compounds described in Specification 538,159. The lubricating oil may be a mineral oil with or without a proportion of fatty oil, such as rapeseed oil, wax, or pine oil. The sulphured base and the halogenated organic compound are each added in the proportions of up to 10 per cent. by weight and preferably above 2 per cent. by weight on the weight of the lubricant. Specifications 431,434 and 545,355 also are referred to.
Patent GB-524885-A (GB)
Title: Improvements relating to the suspensions of vehicles particularly motor-cycles
IPC: B62K25/04
Filed: 1939-02-10
Abstract: 524,885. Vehicle wheels. TRIUMPH ENGINEERING CO., Ltd., and TURNER, E. Feb. 10, 1939, No. 4370. [Class 144 (i)] The hub 11 of a chain-driven road wheel of a motor cycle or tricar is journalled on a non- rotatable inner hub 15 which is yieldingly supported from the stationary axle 19 and con-' strained, in its movements within the outer hub, along an arcuate path concentric with the driving-sprocket 27. The outer hub 11 is mounted on ball bearings 22 on the inner hub 15 which is provided with an arcuate cage 32 to house a pair of springs 24, 25 arranged above and below the axle 19. Blocks 26 secured at the ends of the axle are guided in arcuate slots 30 in the inner hub, rubber &c. buffers 37 being fitted at the ends of the slots.
Patent GB-852891-A (GB)
Title: Improvements in or relating to transport means
IPC: E04B1/343
Filed: 1956-02-13
Abstract: 852,891. Glasshouses. BELL Ltd., O. H., and BELL, O. H. Feb. 12, 1957 [Feb. 13, 1956], No. 4426/56. Class 20(1) [Also in Groups XXX and XXXIV] In a glass covering or other architectural structure and a transport system the transport system comprises a plurality of parallel tracks and a plurality of series of rollers to roll along the tracks, the rollers of each series being spaced along the tracks, and the glass covering or other architectural structure has a plurality of runners to run respectively on the series of rollers. A channel shaped rail 1, supported on tubular members 14, vertically adjustably slidably mounted in tubular members 13 driven into the ground, supports rollers 2 interconnected by spacing rods 6 attached to plates 7 mounted on the rollers 2 by bushes 8. An inverted channel 3, supporting a load such as a glass covering structure 4, bears on the rollers 2 so that by pushing or pulling the structure 4 it is moved along the rail 1 on the rollers 2. Washers 5 mounted on the rollers and held thereon by split pins 10 are provided with part spherical surfaces facing adjacent channel walls and prevent excessive lateral movement of the rollers 2. The plates 7 associated with each end roller 5 are joined by a cable 12 which passes round pulleys mounted at each end of the rail 1..If a heavy load is to be moved the cable 12 may be connected to one or more windlass mountings which mountings may be fitted with a braking mechanism if the load is on a slight incline. The tracks can be mounted on sleepers and suitable portable tracks may be mounted in lorries to move heavy loads such as steel safes. The channels 3 may be incorporated in a separate vehicle adapted to carry a load. Specification 823,938 is referred to.
Patent GB-372820-A (GB)
Title: An improved electrical method of and apparatus for measuring the approach of an aircraft towards the ground
IPC: G01S11/02
Filed: 1931-02-12
Abstract: 372,820. Indicating proximity of earth. JUNKERS, H., 21, Kaiserplatz, Anhalt, Dessau, Germany. Feb. 12, 1931, No. 4431. Convention date, Feb. 12, 1930. [Class 37.] Apparatus for measuring the height of an aircraft above the ground comprises two self-energizing oscillators X, Y, magnetically screened from one another, of which the oscillator X has a frequency which varies with the distance of the aircraft from the ground, whereas the second oscillator Y has a frequency which is independent of this distance but is adjustable by means of a variable condenser, variometer, &c. to correspond with definite altitudes. The oscillator X has a condenser formed by the body F of the aircraft and an auxiliary surface K, the capacity varying with the distance from the ground. The independent oscillator Y is adjustable by means of condensers K1, K2 for coarse and fine adjustment. The oscillators are coupled by means of coils L1, L2, the beat note being observed by means of an amplifier and telephone. It is stated that, as the aircraft approaches the altitude for which the condenser is set, the sound in the telephone ceases suddenly, and recurs suddenly at a definite adjustable altitude below the resonance point.
Patent GB-939371-A (GB)
Title: Apparatus for high-speed photography of gas flow phenomena
IPC: H05H1/00
Filed: 1961-02-07
Abstract: 939,371. Spark gaps. F.FRUNGEL. Feb. 7, 1961, No. 4527/61. Class 39 (1). [Also in Group XXXV] Apparatus for the high speed photography of gas flow phenomena comprises a wind tunnel 1<SP>1</SP> which is provided with two electrodes 2a, and two associated auxiliary electrodes 2b, which are supplied with pulses of electrical energy from a source T so as to produce a spark discharge across the tunnel 1<SP>1</SP> whereby the turbulence of a gas G passing over an air foil 20 can be photographed. The electrodes 2a may have diverging conductors 2<SP>1</SP> attached thereto and extending in the direction of the gas flow. A second gas, different from the main gas, may be injected into the tunnel 1<SP>1</SP> by way of a nozzle 22<SP>1</SP> whilst a photo-electric device 30 may be provided in the tunnel and utilized to terminate the supply of energy to the electrodes 2a.
Patent GB-1171338-A (GB)
Title: Improvements in Low Explosive Primerless Formed Charges
IPC: B25C1/16
Filed: 1967-01-31
Abstract: 1,171,338. Explosive charges. USM CORP. 31 Jan., 1967 [1 Feb., 1966], No. 4555/67. Heading F3A. [Also in Division C3] An explosive charge in pellet form, adapted for use in the combustion chamber of an explosively actuated tool, comprises a compacted mass of fibrous nitrocellulose with air entrapped between the fibres, the nitrocellulose mass having a nitrogen content not exceeding 15% by wt. and a density of 0À6-1À6 gm./cm.<SP>3</SP> As shown, the charge 10 has an annulus shape 12 and is bridged by a web 14 thinner than the annulus, and which may have a centrally thickened portion 18, there being a recess 16 adapted to receive the striker means of said tool. The web may alternatively be placed midway along the annulus.
Patent GB-988813-A (GB)
Title: Improvements in or relating to hand-driven control mechanisms embodying epicyclic gearing
Inventor: FILLMORE LEONARD WALTER CHARLE
IPC: F16H13/08
Filed: 1963-02-05
Abstract: 988,813. Epicyclic gearing. JACKSON BRO. (LONDON) Ltd. Feb. 3, 1964 [Feb. 5, 1963], No. 4650/63. Headings F2D and F2Q. In a hand-driven control mechanism, suitable for variable electric condensers, epicyclic gearing comprises a set of balls 6 acting as planetary members which bear against an annulus 9 which is retained within a group of axially-extending springy fingers 10 which are integral with a body element 11 made of metal which is less hard than the annulus 9. A driving shaft 2 is journalled in a driven sleeve 3, which functions as a planet cage, and a tapered stub 4 on the spindle 2 is spring-pressed into engagement with the balls 6 to force them against the annulus 9. The driving shaft 2 carries a knob 1 which may have a projection 7 for encountering a projection 8 on sleeve 3 for applying motion directly to sleeve 3 at each end of the range. The body element 11 has a screw threaded mounting portion 15 provided with a clamping nut 16. The annulus 9 is of steel and the body element 11 of brass. In a modification, a two-stage epicyclic gear comprises a first stage B having a body element 17 which also constitutes a carrier for a group of balls 18 of a second stage C.
Patent GB-1504332-A (GB)
Title: Method and apparatus for the electrodeposition of metal
IPC: C25C1/00
Filed: 1975-02-10
Abstract: 1504332 Metal electro-deposition KENNECOTT COPPER CORP 10 Feb 1975 [25 Feb 1974] 4667/75 Heading C7B Metal is electrofined or won in a cell having parallel electrodes, non-conductive (PVC) baffles 18 and a non-conductive member 20 positioned respectively along side edges and the bottom of each anode, forming an enclosure between opposing anode and cathode faces, and pipe 52 supplying a sheet of ascending gas bubbles 50 across each cathode face. The bubbles and baffles provide fixed path convection of electrolyte while preventing both lateral spreading of the gas bubbles and deposition of metal on edges of the cathode. The baffles may be attached either to the electrode or to the cell.
Patent GB-674659-A (GB)
Title: Improvements in or relating to lapping machines
IPC: B24D7/02
Filed: 1950-02-23
Abstract: 674,659. Laps. CRANE PACKING CO. Feb. 23, 1950 [Feb. 26, 1949], No. 4715/50. Class 60. A surface-finishing device comprises a dished plate 10 having grooves in at least one surface so as to impart flexibility to the plate, and means for fixing the plate on a platen whereby the amount of dishing of the plate may be varied. A circular cast-iron plate may have grooves radially disposed on the top and bottom surfaces, those on the two surfaces being relatively staggered. Alternatively, the grooves may be arranged concentrically .on the upper and bottom surfaces of a circular plate. The plate 10, Fig. 4, which is initially formed to a slightly dished shape, is secured to the flat upper surface of a rotatable platen 17 by a bolt 23. Depending upon the degree of tightening of this bolt, the upper face of the plate can take up a convex, flat or concave form. In a modification, a plate 24, Fig. 7, which initially has a convex upper face and a flat underface, is clamped to a continuous or discontinuous flange 28 upstanding from the periphery of the platen 27.
Patent GB-745341-A (GB)
Title: Improvements in or relating to magnetic storage systems
Inventor: COOPER FRANK
IPC: G11B5/02
Filed: 1951-02-27
Abstract: 745,341. Magnetic recording and reproducing apparatus. NATIONAL RESEARCH DEVELOPMENT CORPORATION. Feb. 15, 1952 [Feb. 27, 1951], No. 4768/51. Class 40(2) [Also in Group XIX] In a magnetic storage device for recording and reproducing pulse signals, comprising a magnetic recording medium movable at a speed synchronized with a supervisory timing control, a write-coil winding for a first flux gap adjacent the recording medium, means for supplying energizing current to the winding and causing an abrupt change of current at an instant related to the supervisory timing control, and a pick-up coil with a second flux gap in advance of the first gap in the direction of movement of the recording medium, means are provided for adjusting the amount of current supplied to the write coil winding so that the read-out signal from the pickup coil resulting from an abrupt change of current in the write coil winding may be altered in its. timing relative' to the supervisory timing control. On the surface of a magnetic data storage drum rotating in synchronism with a timing cycle such as that of an electronic computer, binary digits are recorded in a plurality of tracks by abrupt changes in magnetization at predetermined points x1, x2, ... &c. Fig. 2 (m). A change in one sense is indicative of a binary "one", while a change in the opposite sense represents a binary "zero". The writing and reading heads are combined to form a single unit, the delay due to the distance S between the writing gap P1, P2, Fig. 7, and the reading gap P2, P3, being allowed for in the utilization circuits. To meet the problem of possible departures from the intended value of s due to physical inaccuracies in the mechanical spacing between the effective centres of the flux gaps and unpredictable electrical variations, provision is made to adjust the strength of the magnetizing current applied to each individual writing head. Fig. 8 depicts the magnetic flux distribution at different positions along the recording medium for three different strengths of energization current of the writing head P1, P2. C represents the level of flux strength at or above which the state of magnetization is changed. Assuming movement of the recording medium in the direction of arrow z, the leading points of change n1, n2 or n3 would determine the precise positions of the binary digit signals relative to the recording medium and therefore the timing of the signals picked up by the gap P2, P3 relative to the clock pulses of the system. Adjustment of the strength of current may be obtained by variable or selected resistors in series with and/or shunted across the primary windings of the step-down transformers feeding the writing heads. Alternatively attenuator networks or adjustable tappings in the transformer input windings may be employed. The circuits involved in the writing-in and reading-out operations are described, and the following Specifications 705,479, 707,634, 707,635, 731,341 and 742,522 [all in Group XIX] are referred to.
Patent GB-872629-A (GB)
Title: Device for guiding rod-shaped objects in filter tip cigarette making machines
Inventor: AHNE OTTO
IPC: A24C5/32
Filed: 1960-02-11
Abstract: 872,629. Making filter - tip cigarettes. TABAK - UND INDUSTRIEMASCHINENDRESDEN VEB. Feb. 11, 1960, No. 4811/60. Class 130. Filter rods 11 carried on a troughed drum 1 to be placed between cigarettes 1.7 in grooves of a drum 16 are controlled by a guide segment 2, the operative portion of which is formed by an adjustably tensioned and preferably elastic belt 3 which contacts the drum 1 in the absence of rods 11.
Patent GB-521579-A (GB)
Title: Stacking chair
IPC: A47C3/04
Filed: 1939-02-14
Abstract: 521,579. Nesting chairs. GRAY, F. Feb. 14, 1939, No. 4829. [Class 52 (ii)] In a nesting chair, the side rails A are joined to the outside of the back legs B and lie in the same plane as the front legs, and slots C are left on each side between the side rails and the seat E. In stacking the back legs of the chair above pass downwardly through the slots. The arms F, if provided, lie outside the side rails. The upholstered part of the seat is detachable in the usual manner.
Patent GB-665631-A (GB)
Title: Furniture construction
IPC: F16B12/02
Filed: 1949-02-22
Abstract: 665,631. Furniture frames and connections; furniture of standard dimensions. CORNWALL, A. H. March 7, 1950. [Feb. 22, 1949 ; Feb. 22, 1949] Nos. 4850/49 and 4856/49. Classes 52 (i) and 52 (ii). Articles of furniture are constructed from preformed panels &c. which are connected together by interconnected spring metal clips constructed as described in Specification 665,633. As shown, the panels are assembled as a stool having top panel 1, leg panels 3, 4 and side bracing panels 5, 6. The edges of the panels are formed at each edge with a shallow rabbet 7 and narrow grooves 8. Fig. 3 shows a combined interconnecting clip having two channels 9 the flanges of which terminate in small inturned flanges 10 engaging the grooves 8. Where no interconnecting clips 12 are required the panel edges are provided with shrouding clips 11 which are formed with a single channel. For interchangeability and accurate positioning the channels of the interconnecting clips and shrouds are of accurate square section and the edges and rabbets of the panels are of such dimensions that the completed panels, i.e. with the addition of the clips and shrouds are of standard dimensions and subdivisions thereof. Specification 665,632 is also referred to in the Complete Specification.
Patent GB-919917-A (GB)
Title: A method and improvements in or relating to apparatus for casting small articles
IPC: B22D5/04
Filed: 1961-02-10
Abstract: 919,917. Casting-machines. EKELOF, N. O. Feb. 10, 1961 [Feb. 15, 1960], No 4979/61 Class 83 (1). Moulds 9 with cavities 10 for small articles such as cast-iron grinding elements are filled as they pass beneath a pouring cup and excess melt is stripped from the filled cavities on continued advance of the moulds by a graphite block 23 resiliently pressed against the top of the moulds. The moulds 9 are bolted to an endless chain conveyer 4, and the melt is directed into the mould cavities by inclined channels 17 in a graphite plate 15. The top surfaces of the moulds may be dusted with graphite powder prior to pouring.
Patent GB-770177-A (GB)
Title: Improvements in or relating to the manufacture of bias binding
IPC: B29C65/00
Filed: 1955-02-22
Abstract: 770,177. Packaging-machines. BROUNCKER, C. F., and BROUNCKER & CO., Ltd., C. F. Feb. 22, 1955 [Feb. 22, 1954], No. 5163/54. Class 94(1). [Also in Groups VIII and XVI] In a machine for forming bias binding (see Group VIII), the strips of binding are pressed between rollers 1, 2 and wound into rolls side by side on a spindle 5. During winding, the rolls rest on roller 1, spindle 5 being carried on a pivoted arm 30 which rises as the rolls increase but which is prevented from falling, when roller 1 is moved on its supporting arms 3 at the end of the winding operation, by engagement of a dog 31 on a ratchet arm 31. The machine is stopped, when the rolls reach the desired size, either manually by movement of arms 3 or automatically on movement into a predetermined position of arms 33<SP>1</SP> carrying spring fingers 9. Fingers 9 prevent unwinding of the rolls when roller 1 is moved. To fasten off the binding on the rolls prior to cutting off the rolls from the bias binding strips, a strip of adhesive tape is stretched across the rolls adjacent to fingers 9. Arms 35 are then lowered so that (a) spring fingers 10 hold the tape on each roll, (b) blades 11 sever the tape between adjacent rolls and (c) U-shaped clips 12 press the severed ends of the tape downwardly against the sides of the rolls.