baber/WOPTO huggingface dataset:
Patent GB-511829-A (GB)
Title: Improvements in or relating to holders for magnets of high coercive force
IPC: H01F7/02
Filed: 1939-01-13
Abstract: 511,829. Eddy-current brakes. LANDIS & GYR AKT.-GES. Jan. 13, 1939, No. 1229. Convention date, Dec. 1, 1938. Addition to 486.393. [Class 103 (i)] [Also in Groups XXXVI and XXXV] In the magnet holder described in the parent Specification, the abutting faces of the magnets and holder are formed with divergences from their planes so as to maintain the relative positions of the magnet parts whilst permitting a close fitting connection between the magnet parts and the holder. As shown in Fig. 1, the holder consists of a die-stamped standard or upright 1 terminating in a bottom plate 2 with a hole 3 for a fastening bolt. U-shaped magnet parts 5, 6 of material of high coercive force are clamped against the face 4 of the standard by means of bars 7 riveted to studs 8. The magnet parts 5, 6 have depressions 9 in their rear faces 5a, 6a, engaging ridges 10 on the front faces 4 of the standard 1. These ridges are forced into the depressions 9 when the bars 7 are riveted on. Alternatively the magnet parts may be formed with ridges and the standard with depressions. In a modfication, Fig. 3, pieces 12 of soft metal such as aluminium are interposed between the magnet parts 5, 6 and the standard 1 and have projections entering depressions 9, 11 in the magnets 5, 6 and standard 1. The parts 12 are formed from flat U-shaped pieces fitting the magnet parts. Each piece is pressed between the magnet part 5 or 6 and a templet corresponding to the face of the standard 1 so that projections are formed engaging the depressions in the magnet and standard. The depressions 9 in the magnet parts may be formed so that when the soft metal piece 12 is pressed it adheres to the magnet face. Alternatively the depressions in one or both abutting surfaces may be replaced by projections.
Patent GB-450758-A (GB)
Title: Anti-friction metal
IPC: C22C38/00
Filed: 1935-01-14
Abstract: An anti-friction metal especially for bearings is composed of a hypo-eutectoid steel which has been heated to a temperature between the Ac1 and Ac3 points and quenched in water or other suitable cooling medium.  Alloying constituents which form solid solutions with the ferrite in the steel may be added to the latter and comprise manganese up to 2 per cent, silicon up to 1, chromium up to 3, tungsten up to 5, nickel up to 5, cobalt up to 5 and phosphorus up to 0,3, and the total amount of such additions should not exceed 6 per cent.  The steel may be tempered after quenching.
Patent GB-1247651-A (GB)
Title: Noise discriminating fault apparatus
IPC: H04L1/00
Filed: 1970-01-12
Abstract: 1,247,651. Telegraphy. UNITED AIRCRAFT CORP. 12 Jan., 1970 [16 April, 1969], No.1365/70. Heading H4P. An apparatus for discriminating' between <SP>"</SP> noise and faults comprises a bi-stable device 14 which is set by a signal on any input to OR circuit 12. The bi-stable device is reset each frame period which in the embodiment described is 16-bits measured by a counter 18 receiving pulses from a clock 21. The bi-stable output is passed through a leaky integrating circuit 24, 26 connected to the input of a comparison circuit 28 also receiving an adjustable reference voltage 29 which sets the level below which the input from the integrating circuit is ineffective, and is equivalent to a determined noise level which causes spurious fault signals, to be fed into OR gate 12. As long as error persists in some part of the system there will be a signal on one of lines 10 hence bi-stable device 14 will be continually set immediately following eachreset thus the average voltage on line 23 is an indication of the number of fault periods during which the device 14 has been set and when this exceeds the reference voltage 29, a signal is emitted on line 36. If the noise is minimal reference voltage 29 might be set to equal two consecutive settings of device 14 but if the noise is considerable device 14 may be set equal to that equivalent to ten consecutive frames. The integrating network is arranged to discharge itself over period of time, say ten or twenty frames hence restores itself to a zero voltage condition in the absence of fault signals. In a suggested modification, the setting of device 14 may be compared with a similar device which is a set, a given number of frames in a row in response to a first setting of device 14 and a repeated setting of that device 14 for the same number of frames as the comparison device would result in the generation of a recognized fault signal. Alternatively a counter could be used to count the number of frames in which the device is set. Such modifications are not described in detail. The apparatus is stated to be particularly suitable for data multiplexing systems on aircraft.
Patent GB-828630-A (GB)
Title: Improvements in or relating to transparent surface finishes on wood, decorative laminates and other materials
Inventor: BROOKES ALFRED
IPC: D21H27/28
Filed: 1957-01-14
Abstract: 828,630. Laminates. BRITISH INDUSTRIAL PLASTICS Ltd. Jan. 14, 1958 [Jan. 14, 1957], No. 1395/57. Addition to 684,085. Class 140. The invention of the parent Specification, according to which transparent protective surface finishes on wood and other substrates are produced by impregnating a substantially transparent fibrous paper layer with a heatcuring resin of substantially the same refractive index and heating said layer in contact with the wood &c., is modified by the use, instead of paper, of an unwoven fabric of viscose fibres, which may be carded, or parallel-, cross- or random-laid, bonded with liquid cellulose regenerated from viscose. The resins used are preferably melamine-formaldehyde or ureamelamine-formaldehyde, but polyester resins may also be used. Examples refer to laminated paper and plywood substrates overlaid with an unwoven fabric as above with a decorative interlayer of impregnated white pigmented paper.
Patent GB-645071-A (GB)
Title: Article of furniture incorporating a rising buffet or the like
IPC: A47B9/02
Filed: 1948-01-16
Abstract: 645,071. Cabinets. SMOLIK, K. Jan. 16, 1948, No. 1423. Convention date, Feb. 7,1947. [Class 52 (i)] In an article of furniture fitted with a rising and falling platform for moving goods between positions of access and storage by the action of weights or springs the platform 1 is carried by the moving part of a dash-pot device mounted in a central recess in the article. Preferably the dash-pot piston 4 is fixed and the cylinder 3 moves with the platform, being lifted, on release of a catch, by the weight 8. An adjustable orifice 10 regulates the dash-pot action.
Patent GB-804043-A (GB)
Title: Improvements in or relating to rotary wing aircraft
IPC: B64C27/48
Filed: 1954-01-18
Abstract: 804,043. Rotary wing aircraft. AUSTER AIRCRAFT Ltd., and PAYNE, P. R. Jan. 18, 1955 [Jan. 18, 1954], No. 1448/54. Class 4. The blades 13 of a lifting rotor for aircraft are secured to a root link 18 by a drag pivot 25 and a smaller pin 26 having less shear strength than the pivot pin 25. Under normal flying conditions the axes of the blade 13 and the link 18 will remain in alignment but should a blade be subjected to excessive drag loads the pin 26 would be sheared and the blade would be free to undergo normal lay-lead movements. The link 18 is secured to the rotor hub by a flapping hinge and the rotor blades may be fitted with jet propulsion units. In order to adjust the angular position of the rotor blades around the rotor axis the flapping hinge may be arranged as a gimbol with its pivot axis intersecting the rotor axis. Adjusting and clamping means may be provided for the gimbol.
Patent GB-213883-A (GB)
Title: Improvements in or relating to frame components
IPC: B64C1/06
Filed: 1924-01-18
Abstract: 213,883. Soc. d'Emboutissage et de Constructions MÚcaniques. April 6, 1923, [Convention date]. Void [Published under Sect. 91 of the Act]. Girders.-A framework component, particularly for aircraft wings, comprises at least one tubular element. In the construction shown in Fig. 1, a spar is constructed of upper and lower tubes, formed of flanged semicircular elements a, b, connected by flanged continuous or openwork side pieces c, the abutting flanges of the elements a, b and of the side members c being riveted together. Continuous or pierced spacing members d are positioned internally at intervals, flanges on their sides and semicircular upper and lower edges being riveted to the tubular elements b and the side pieces c, respectively. Portions having to withstand the greatest strains may be strengthened by the attachment thereto of additional tubes by means of tubular rivets. In a modification, the lower tube is replaced by one or more flat plates. Fig. 3 shows a further modification in which three upper tubes are provided, the two outer tubes being supported by spaced buttresses h.
Patent GB-157776-A (GB)
Title: A method for fixing by one extremity a piece of composite wood such as a propeller blade on a support such as a metal boss
IPC: B64C11/04
Filed: 1921-01-10
Abstract: 157,776. Levasseur, P. March 29, 1916, [Convention date]. Screw and like propellers. -A laminated propeller blade or other member is connected to a metal boss or frame 'by embedding connecting rods e between the layers of wood or other material which are glued together or otherwise united, &c. The rods e may be screwed for a portion of their length and may be sinuous. They are almost entirely sunk into the lower plank of any pair to resist bending, the threads being forced into the upper plank during the glueing. Wedgeshaped, dovetailed, or notched pieces of metal or other material may replace the screwed rods. The compound plank is secured to the adjacent member f by nuts h.
Patent GB-1373611-A (GB)
Title: Lead dioxide electrode
IPC: C25B3/23
Filed: 1971-01-12
Abstract: 1373611 Lead dioxide electrode ELECTRICITY COUNCIL 5 Jan 1972 [12 Jan 1971] 1502/71 Heading C7B A process for producing an electrode consisting of a titanium substrate coated with lead dioxide in valves degreasing the titanium substrate, removing the titanium oxide film by cathodic polarization and then anodically depositing lead dioxide from a solution containing one or more lead salts such that the anode current density is increased during the electro-deposition. The titanium substrate may be an expanded grid or gauze and may be sealed in a rim of plastics material. The degreasing solvent may be trichloro ethylene. The electrolyte for the cathodic treatment may be sulphuric or hydrochloric acid and the counterelectrodes may be platinized titanium or lead dioxide. The electro-deposition of lead dioxide may be carried out in two parts. In the first part the anode current is 20-50 mA/cm<SP>2</SP> for ¢-2 hrs and in the second part 50-100 mA/cm<SP>2</SP> for ¢-3 hrs. The cathodic may be stainless steel, nickel, platinum or copper and may be in the form of wire wound around a hollow former. The electrolyte for the anodic deposition may contain lead nitrate, copper nitrate, nickel nitrate, sodium fluoride, nitric acid and heptafluorobutanol. Reference is made to Specification 1192344 and 1189183.
Patent GB-708864-A (GB)
Title: Improvements in or relating to cover panels for inspection and like openings
Inventor: LOVE JOHN
IPC: B63B19/14
Filed: 1952-01-18
Abstract: 708,864. Inspection openings. K.A.C., Ltd. Jan. 19, 1953 [Jan. 18, 1952], No. 1565/52. Class 107 A cover panel for an inspection opening, especially in aircraft, seats on the periphery of the opening, the seating being so shaped that pressure applied asymmetrically to the cover panel will cause the panel to rock in the opening such that the part of the panel remote from the pressure will project to render the whole panel removable. Retaining means such as magnets or ball catches are provided to prevent accidental opening of the panel. The cover panel is preferably a section of a solid of revolution. Fig. 1 shows a cover forming part of a sphere. The cover seats on its periphery on a correspondingly shaped seating 4 and is retained by magnets 12 acting on armatures 13. Thumb holes 14 are provided to facilitate gripping the cover when removing. A rectangular panel is shown in Fig. 3. This panel is part of a cylinder and is retained by ball catches 23, 24, 25, 26. Pins 31 and 32 also are provided to coact with bayonet slots 33 and 34.
Patent GB-798739-A (GB)
Title: Improvements in or relating to tank filler caps
IPC: B60K15/04
Filed: 1957-01-16
Abstract: 798,739. Closure caps. PEW, C. C. DE. Jan. 16, 1957, No. 1569/57. Class 125(3). A filler cap for aircraft tanks &c. has a frusto-conical closure plate 20, a clamping plate 21 carried on a central stud 22 rotatably dependent therefrom and a manipulating handle 23, the plate 20 carrying in a groove 26 a sealing ring 29 which engages the surface of a ring 11 surrounding the tank orifice and the lower face of the plate providing a flat annular seat 33 formed with slots 41 on one side of each of which is a shallow flange 42 terminating in a dependent lug 43 having a recess 39. Plate 21 has cut-away sections 62 at one end of each of which is an outwardly projecting clamping finger 63 which nests in recess 39 when the parts are in unlocked condition and which engages under the flange 16 of ring 11 in locked condition. A compression spring 64 is carried on stud 22 between a boss 40 on plate 20 and plate 21, the handle 23 having cam surfaces 53 so that after the closure has been inserted in ring 11 and rotated to engage fingers 63 beneath flange 16 lowering of handle 23 draws plates 20, 21 together to compress the sealing ring 29 on to its seating surface.
Patent GB-1286956-A (GB)
Title: Spark ignition systems
Inventor: GILBERT BRIAN
IPC: F02P3/04
Filed: 1969-01-10
Abstract: 1286956 Ignition systems JOSEPH LUCAS (INDUSTRIES) Ltd 31 Dec 1969 [10 Jan 1969J 1637/69 Heading F1B An ignition system for an internal-combustion engine includes an electrically powered radiation source 24, a radiation receiver 25, means 22 driven by the engine for exposing the receiver to the source when a spark is required, means 28, 30, 31 operable when the receiver is exposed to the source for producing a spark and means 27 for controlling the supply of power to the source so that the source is operated at full power only when the receiver is exposed to the source. A modification comprising a condenser discharge ignition system is described.
Patent GB-1078471-A (GB)
Title: Improved mounting for a glass pane or other panel
IPC: E06B1/38
Filed: 1965-01-14
Abstract: 1.078,471. Glazing. U. GLEINSER. Jan. 14, 1965 [Jan. 14, 1964], No. 1666/65. Heading E1R.  A pane or other panel 5 is mounted in an opening surrounded by a support 9 by means of a hollow resilient profile 1 bent from sheet material which has formed thereon a resilient rib 12 which cooperates with a resilient spring anchoring element 16 secured to the support 9, to form a snap connection, the element 16 having an extension 18 from the part 24 which engages the rib 12 equal to the distance 20 between the rib 12 and the edge of the support engaged by a shoulder part 10 on the strip 1 so that the part 24 of the anchoring element will engage the knee of the rib as shown, or so that the knee between the parts 18 and 24 will contact an intermediate portion of the side 14 of the rib (Fig. 1). The end portion of the part 18 of the anchoring'strip is bent upwards to form a guide for the rib on the strip 1 when this latter is pushed home. The strip 1 has a flange 3 to mount a sealing strip 25 which may be tubular or provided on each side with a lip to contact the pane 5. P.V.C. internal corner strips render the mitre joint watertight.
Patent GB-409094-A (GB)
Title: Improvements in or relating to mixing of gaseous fluids
IPC: F24F13/04
Filed: 1933-01-19
Abstract: 409,094. Rotary fans. SPOONER, W. W., Ashbrook, Ilkley, Yorkshire. Jan. 19, 1933, No. 1752. [Class 110 (i).] Apparatus for mixing gases consists of fan runners 1, 2 mounted back to back on a shaft 3 driven by the motor 4. The casing has an inlet 7 for the fan 1, while the inlet for the fan 2 consists of a number of holes 8 in the plate 9 which may be partly closed by movement of the plate 11. This plate has holes corresponding to those in the plate 9 and can be rotated by means of the pin 13. The gases are admitted to the fan runners and discharged through the outlet 6. Where hot and cold gases are to be mixed, the cold gas is preferably admitted through the openings 8 so that the bearings of the fan and motor are kept cool.
Patent GB-1345473-A (GB)
Title: Packaging
IPC: B29C53/50
Filed: 1972-01-14
Abstract: 1345473 Tube forming mandrel in a packaging machine FR HESSER MASCHINENFABRIK AG 14 Jan 1972 [16 Jan 1971] 1812/72 Heading B8C [Also in Division F2] In a skelping device of the kind wherein a strip of material is passed over a forming shoulder 3 and is then folded back on itself to pass round a mandrel 2, the mandrel 2 is formed with a resilient outer surface at least at that part that co-operates with the fold of the shoulder 3 so that the sheet material is uniformly pressed against the former despite variations in the thickness of the sheet. This ensures the production of wrinkle free tubes. The resilience may be provided by an encircling band 5 of springy material secured in a groove 4 by screws 6. Alternatively a resiliently expandable collar (e.g. like a piston ring) may be used. The surfaces of the resiliant part of the mandrel and/or the complementary part of the shoulder may be coated with anti-friction material (e.g. P.T.F.E.). The resilience. allows passage of a portion of sheet of double thickness (e.g. the overlap formed when joining strips together).
Patent GB-264863-A (GB)
Title: Improvements in and relating to processes of treating silica articles
IPC: C03B29/04
Filed: 1927-01-21
Abstract: 264,863. British Thomson-Houston Co., Ltd., (Assignees of Herzog, E.) Jan 21, 1926, [Convention date]. Forming silica glass articles.-Relates to the method of glazing an article made of fused silica by subjecting the surface to an electric arc or other source of high temperature. According to the invention, the article as a. whole is heated to a high temperature in a closed receptacle, before the glazing operation commences, in order to prevent chipping or breaking due to strains produced by the intense local heating during glazing. Apparatus for carrying out the process com. prises a vertical tubular receptacle 1 which can be heated by gas burners 15, and two coaxial shafts 4, 5 which project into the receptacle. The shaft 4 is rotated by a motor 10 and, in turn, it rotates a parallel screwed shaft 24. The article to be glazed, such as a cylinder of silica 12, is held between the shafts and is rotated while its temperature is raised to about 1000‹ C. The surface of the article is glazed by the flames from two oxyhydrogen blowpipes 18 which project through a slot in the wall of the receptacle 1 and direct the flames against a small area of the article. These burners are mounted on the shaft 24, so that they are raised or lowered as the article 12 is rotated and the fusing heat is progressively applied over the entire surface of the article. A defect in a silica article may also be repaired by heating the article and then fusing small pieces of vitreous silica into the cavity by means of the blowpipe.
Patent GB-456702-A (GB)
Title: Device for controlling aircraft motors
IPC: H02P5/50
Filed: 1936-01-20
Abstract: 456,702. Propelling aircraft. RUSPOLI, E. A., 19, Avenue Rapp, Paris. Jan. 20, 1936, Nos. 1846 and 1847. Convention dates, Jan. 22, 1935 and Oct. 14, 1935. [Class 4] [See also Groups XXXV, XIX, XXVII, and XXXVIII] For the purpose of suppressing vibrations, of beat frequency, for example, strict synchronism of motors driving aircraft is obtained by using an alternating current of adjustable frequency. An alternator 5 driven by one of the engines or by an independent motor 13 furnishes alternative current to the field rotor 16 of a differential regulating device associated with each engine, and the armature stator of which is driven by the engine. Any departure from the required speed produces a movement of the rotor of the appropriate differential device which actuates means such as a throttle control 18 to correct the engine speed. By changing the speed of the drive for the alternator, the speed of all the engines is likewise changed. The invention is applicable to remote control of aircraft, the alternating current used being supplied by a wireless receiver, the modulation frequency of which is controlled at the transmitter. The engines may be divided into right and left groups independently controlled for steering.
Patent GB-675949-A (GB)
Title: Improvements in appliances for use in sharpening or re-sharpening safety-razor blades
IPC: B24D15/08
Filed: 1951-01-25
Abstract: 675,949. Sharpening razor blades. WALTON, A. L. Jan. 25, 1951, No. 1930/51. Addition to 640,133. Class 60. The invention of the parent Specification is modified to permit the sharpening of singleedged blades and to provide certain constructional improvements upon such invention. The construction shown in Fig. 1 is for sharpening the opposite sides of a single-edged blade 4 successively and comprises a frame 1 having a sharpening roller 2, a seat 3 for the blade, and a driving roller 8 journalled in slots 6. A casing 9 slidably fits the frame 1 and has two webs 10 and 11 which hold the blade in contact with the seat 3 and the roller 2. When the appliance is moved over a flat surface in the direction of the arrow a, the roller 8 is displaced in the slots 6 until it comes into contact with the roller which is then rotated in a direction away from the edge of the blade. When the direction of movement of the appliance is reversed, the roller 8 is displaced away from the sharpening roller so that the latter is never rotated against the blade. In a modification of this construction, the web 10 is replaced by a second sharpening roller journalled in the casing 9 and driven by surface contact with the roller 2, the edge of the blade being inserted between the rollers. The construction shown in Fig. 3 is for sharpening double-edged blades. The driving roller 8 drives the sharpening rollers 13, 14 alternately. The frame includes a cross bar 16 with pins 17 to locate the blade which is pressed into contact with the sharpening rollers by webs 19 on the casing. In this construction, the ratio of the diameters of the driving and sharpening rollers may be varied, and the webs 19 may be replaced by bushes to fit over the pins 17. Fig. 5 shows a construction in which the blade is secured by a pair of pads 21 of resilient material held in the casing by bars 22.