baber/WOPTO huggingface dataset:
Patent GB-733112-A (GB)
Title: Improvements in or relating to cleaners for rollers
IPC: B65G45/14
Filed: 1953-06-04
Abstract: 733,112. Endless-belt conveyers. UNITED ELECTRIC COAL COS. June 4, 1953 [June 21, 1952], No. 15450/53. Class 78 (1). The surface of a supporting roller 12, Fig. 1, for an endless belt conveyer 10 is cleaned by a series of tools 44 which are drawn longitudinally across the surface in a path substantially parallel to the axis of rotation of the roller. The cylindrical shank of each tool is mounted adjustably in a socket in a carriage 86 and is held in any desired position by a set-screw 88. Each carriage is secured to an attachment 84 on an endless driven chain 46 and is provided with opposed jaws 92 which engage guide rails 94, Fig. 4. These guides are secured to an I-beam 42 in which the sprockets for the chain are mounted. The beam 42 is mounted on a beam 30 which is carried by a pair of brackets 28 projecting from a pair of spaced uprights 16. The shaft 24 of the roller 12 is mounted in a pair of brackets 22 mounted on pair of arms 20, each of which is pivotally mounted in a block 18 carried by an upright 16. The position of the roller is adjusted by a set-screw 26. Each arm 20 is pivotally connected to a tie-rod 34 which is secured adjustably to the beam 30. Each tool has a cutting portion adjacent its outer end which includes an inclined surface opposed to the direction of roller movement and directs material downwardly and outwardly with respect to the roller.
Patent GB-867518-A (GB)
Title: Four-colour photographic reflected vision colour prints
IPC: H04N1/52
Filed: 1958-05-14
Abstract: 867,518. Copying by scanning. GRETENER A.G., EDGAR. May 14, 1958 [May 15, 1957], No. 15561/58. Class 40(3) [Also in Group XX] A coloured photographic reflected vision print comprises a neutral grey and three colour recordings on a white reflecting background. The print is produced by analysing an original colour transparency by means of a flying-spot scanner and associated photo-electric devices (Fig. 4, not shown) to produce sets of electrical signals representative respectively, of the neutral grey density and of the three (red, green and blue) "colour residue" densities these signals then being recorded as photographic images on separate transparencies from which the final print is produced, the neutral grey image being recorded as a conventional variable density transparency whilst the colour residue images are recorded by a variable area technique as described in Specifications 704,415 and 733,446. Fig. 1 shows the final form of the print which comprises a white reflecting backing 10 on which are superimposed the cyan, magenta and yellow images records 11, 12 and 13 respectively and the neutral grey image record 14. If desired, however, a single mixed grain emulsion layer may be employed for some or all of the images. In the print of Fig. 1, the resultant reflected colour is determined by the ratio of the coloured and pellucid elements such as 20 and 21 respectively, which result from variable area recording in not more than two superimposed layers since with the colour residue technique one of the colours is always zero the brightness of such colour being determined by the neutral grey layer. Types of film which are suitable for producing the final print by conventional photographic techniques are described with reference to Figs. 3 and 5 (not shown). Specification 867,517 also is referred to.
Patent GB-379347-A (GB)
Title: Improvements in or relating to fluxes for soldering
IPC: B23K35/36
Filed: 1931-05-27
Abstract: A flux for soldering comprises a paste formed by mixing a metal etching acid, e.g. hydrochloric, phosphoric, or lactic acid, with an emulsifying agent, e.g. wool fat, bone tar oil, olive oil, or an ester of a higher fatty acid.  Other fluxing agents such as zinc chloride, tin chloride, lithium bromide, aniline hydrochloride, beeswax, or resin may be added and the desired consistency may be obtained by the addition of a vehicle such as starch paste, petroleum jelly, tallow, lard, castor oil, lubricating oil, whale oil, paraffin wax, carnauba wax, or stearic acid.  A flux consisting of an emulsion of hydrochloric acid and wool fat preferably containing also zinc chloride and petroleum jelly is described.
Patent GB-136115-A (GB)
Title: An Improved Sparking Plug.
Inventor: GREENSMITH ARCHIE
IPC: H01T13/46
Filed: 1919-06-21
Abstract: 136,115. Greensmith, A. June 21, 1919. Sparking-plugs. - A sparking-plug is provided with a large space M between the casing and insulator, and with an outer grooved porcelain sleeve D separating the gland B from the binding screw on the central electrode.
Patent GB-567390-A (GB)
Title: Improved printing plates
IPC: B41N1/12
Filed: 1943-09-24
Abstract: Printing-plates are made by applying a layer of polyvinyl chloride in the form of a paste to a matrix, and then curing the layer and simultaneously incorporating with it a fabric or strong paper backing.  The matrix is made by pressing a sheet of felted paper on to the type.
Patent GB-842803-A (GB)
Title: Stationary bearing for clockwork gear
IPC: G04B31/008
Filed: 1958-05-16
Abstract: 842,803. Bearings. FABRIQUE D'HORLOGERIE DE FONTAINEMELON S.A. May 16, 1958 [May 22, 1957; April 2, 1958], No. 15758/58. Class 12 (1). A stationary bearing for a clockwork gear comprises a body 1 with coaxial cylindrical chambers 3, 5 which receive a through-stone 4 and a bezel 7 carrying a solid end-stone 6, respectively, the bezel having a bushing 8 which fits within the upper part of the chamber 3 and diametrically opposed radial projections 11 which, when the bezel 7 is turned in the direction of the arrow f, Fig. 2, lockingly engage beneath inwardly-projecting shoulders 12 on the body 1. The projections 11, having peripheral notches 13 engageable by a tool for rotating the bezel 7, are bevelled at 14 to assist their entry beneath the shoulders 12. In a modification, Fig. 5, the peripheral edge of the solid stone 6 is clamped between an annular shoulder 15 on the upper end of the chamber 3 and a slightly elastic toothed inner collar 20 on the bezel 7.
Patent GB-838296-A (GB)
Title: Improvements in or relating to the dyeability of treated polymeric material
Inventor: SCHOUTEDEN FERDINAND LEONARD
IPC: D06M13/376
Filed: 1956-05-22
Abstract: Fibres comprising polymers containing nitrile groups, such as polyacrylonitrile, poly-methacrylonitrile, polyvinylidene cyanide and cyanoethylated cellulose, are reacted with hydroxylamine in aqueous solution at pH 2-7 in the presence of one or more dyestuffs.ALSO:Polymers containing nitrile groups are treated with hydroxylamine in an aqueous medium, the pH of which is less than 7 but more than 2 during the whole course of the reaction. Polymers specified, which may be in the form of fibres, are homopolymers and copolymers, including graft and block polymers, of acrylonitrile, methacrylonitrile, and vinylidene cyanide and cyanoethylated cellulose.  The resulting polymeric materials have affinity for dyestuffs, particularly acid dyestuffs, and the reaction with hydroxylamine may be performed in the presence of one or more dyestuffs.
Patent GB-399931-A (GB)
Title: Improvements in sound reproducing apparatus combined with an optical projection screen
IPC: G03B21/56
Filed: 1932-06-04
Abstract: 399,931. Loud-speakers. STEVENS, A. H., 5, Quality Court, Chancery Lane, London.-(Trans-Lux Daylight Picture Screen Corporation ; 247, Park Avenue. New York, U.S.A.) June 4, 1932, No. 15878. [Class 40 (iv).] A combined system for the reproduction of sound and for the display of images by the passage of a light-beam through a screen is characterized in that the screen is maintained taut by cords or lacing connected to a frame, sound units being provided to vibrate independently of the screen and disposed at opposite sides of the screen between the screen image area and the frame for directing separate soundwave beams into the audience area, and in which the screen image area is constructed of such material that it is largely impermeable to sound waves, whereby the front surface thereof acts as a sound-wave baffle to overcome the directional effect of the sound waves. The screen, which is formed of moulded gelatinous material with which a fabric sheet may be incorporated in known manner, has, immediately adjacent the periphery thereof, spaced areas much less sound obstructing than the image area of the screen. The screen S, Fig. 3, is held under tension by being laced in a frame 3, and is stretched over ribs 4 provided with a felt layer 4a. The spaced areas O are openings in the screen S covered by fabric sections F. Disposed behind each of the areas O is a loudspeaker L with an annular ring 9 of felt disposed between the flanged ends of the conical portion 6 of the frame and the screen S. The screen may have side members 12. The spaced openings O may, in modifications of the invention, be composition plates at the side of or totally surrounding the screen, and to which the screen may or may not be laced.
Patent GB-683939-A (GB)
Title: Improvements in or relating to superheterodyne radio-receivers
IPC: H03J3/28
Filed: 1951-07-05
Abstract: 683,939. Superheterodyne circuits. PHILIPS ELECTRICAL INDUSTRIES, Ltd. July 5, 1951 [July 8, 1950], No. 15962/51. Addition to 668,238. Classes 40 (v) and 40 (vi). In a self-oscillatory frequency-changer of the type described in the parent Specification, comprising a multi-grid valve 15, Fig. 1, with a tuned circuit 10 connected between the first and a subsequent grid, and in which the signal is applied via a tapping point on the circuit 10, the preceding signal-frequency circuits 30, 31 comprise a band-pass filter. The primary circuit 30 is resistance-capacity coupled to a preceding R.F. valve 4 and is tuned by means of a variable condenser 33; it is inductively coupled to the secondary 31, which is tuned by the capacitative reactance presented by the oscillator circuit 10, the oscillator frequency being higher than that of the signal. The inductances 30, 31 may comprise a single coil with an earthed tap, Fig. 2 (not shown). In an embodiment, Fig. 3 (not shown), in which the oscillator frequency is less than that of the signal, padding condensers are introduced in series with each of the inductances 30, 31. In a further embodiment, Fig. 4, in which the oscillator frequency is the lesser, a series padding condenser 44 in the primary circuit provides the filter coupling and the secondary circuit comprises the oscillator circuit 10 alone. The circuits described may alternatively be inductively tuned; they may also be used to couple a transmission line to the frequency-changer, a coupling coil then being provided, being inductively coupled to the primary circuit 30.
Patent GB-688806-A (GB)
Title: Improvements in the quantitative estimation of the separate components of mixtures
IPC: G01N30/94
Filed: 1951-07-05
Abstract: In a process for the quantitative estimation of components of a mixture which have been separated into bands on porous material, e.g. by chromatography or electrophoresis, the porous material is rendered transparent by immersion in a liquid having substantially the same refractive index as the porous material, and the extinction of light transmitted by the bands is measured by ordinary quantitative methods.  Bands of colourless substances may be stained by suitable dyes.  Liquids suitable for use with filter paper as the porous material are anisole, nitrobenzene, chlorobenzene, toluene, liquid paraffin, and a-bromonaphthalene. A strip of filter paper damped with the liquid may be placed between two glass plates, passed over the aperture of a photometric apparatus, comprising for example, a photoelectric cell, and the extinction automatically recorded. Reference is made to the analysis of dyestuffs, amino acids, sugars, tannins, hormones, ferments, and albuminous materials.
Patent GB-594033-A (GB)
Title: Improvements in or relating to glass securing means for cloches
IPC: A01G13/04
Filed: 1945-06-22
Abstract: 594,033. Horticultural cloches. PALMER, E. E. June 22, 1945, No. 16010. [Class 20(i)] [Also in Group XXV] Glass securing means for a tent cloche comprises a socket member to engage and locate adjacent edges of two glass sheets so that they diverge, and resiliently extensible tie members secured to the socket member and having hooks engaging beneath the opposite free edges of the glass sheets. As shown the socket member is formed from sheet metal and has two diverging limbs 11 on which the upper margins of the glass sheets 10 rest, the portion 14 connecting the limbs being bent to overhang each limb to form channels 13 to receive the upper edges of the glass sheets, and also to form a handle. The lower ends of the limbs have flanges 12 having holes in which engage hooks 15 secured to one end of helical springs 16 provided at the other end with hooks 17 to engage the lower edges of the glass sheets. The hooks 15, 17 may be stamped from sheet metal with shanks having teeth on their edges to engage the inside of the springs in the manner of a screw-thread.
Patent GB-1043171-A (GB)
Title: Counter-top range exhaust apparatus
Inventor: JENN LOUIS JOSEPH
IPC: F24C15/20
Filed: 1963-04-24
Abstract: 1,043,171. Ventilating cooking stoves. JENNAIR PRODUCTS CO. Inc. April 24, 1963, No. 16110/63. Heading F4W. A cooking stove having a rectangular cooking surface plate 14 is provided with a hollow rectangular cover assembly 24 pivotally mounted on said plate to cover a series of substantially aligned heating units 17 when in its lowered position, and to extend upwardly from plate 14 at an acute angle in its raised position with its lower open end adjacent an elongated aperture situated immediately to the rear of plate 14 to form a registering aperture 45 which, together with an elongated intake slot 36, permits the drawing of cooking fumes through the cover 24 and into a housing 4. The housing 4 has a base 6, Fig. 3, and side members 5 with flanged margins 5a which support the housing in grommets 11 in a cut-out area of the stove top 10. The base 6 carries an inclined, upwardly-extending plate 12 which in turn supports the rear face 13 of plate 14. Plate 14 is provided with apertures bounded by flanges 17a to accommodate heating units 17 which may be electric or gas, and which are supported by annular, downwardly-flanged members 16. The cover 24 comprises side and front members 26, preferably of aluminium, and a top plate 28. A rear border 31, Fig. 3, is shorter in depth than members 26 and is secured to the top plate 28 by a channel-shaped member 29 which also serves, together with a resilient member 49, to form an air-tight seal when the cover is in its raised position. Extending from the inner surfaces of the side members of cover 24 are pins 32 which support removable brackets 33 to which is secured an inner plate 34 which does not extend to the front member, so providing the intake slot 36. Secured to the underface of the plate 14 are brackets 37 (one shown) carrying ears 38. The ears 38 carry pins 39 which journal L-shaped brackets 41. One leg 42 of each bracket 41 is secured to the inner face of one of the side members 26. The other leg 44 can engage a recess 46 in a resilient member 47. A counterbalancing spring 53 is provided. A catch mechanism, Fig. 4 (not shown), is provided to retain the cover 24 in its lowered position. On depressing a button, the catch mechanism releases the cover. An aperture 71 in the base 6 of housing 4 is in register with a duct 72, Fig. 5 (not shown), through which air is drawn by a fan 74 and discharged via duct 77.
Patent GB-313164-A (GB)
Title: Apparatus for the sterilisation and cleaning of bottles and other receptacles
IPC: B08B9/42
Filed: 1929-05-25
Abstract: 313,164. Duprat, J. F. A. E. June 8, 1928, [Convention date]. Ratchet and like step-by-step conveyers. - Bottles carried by a frame B are arranged successively over spraying nozzles A by means of driven cranks C secured to the frame. The bottles are held in baskets (not shown) which are carried by the frame. The baskets at the discharge end of the apparatus may be returned when emptied to the starting point by means of two endless chains moving in vertical planes, the chains being provided with hooks adapted as they move upwardly to engage hooks on the baskets and lift them from the frame.
Patent GB-554755-A (GB)
Title: Improvements in electric cycle lamps, hand lamps, torches and the like
IPC: F21V7/09
Filed: 1941-12-15
Abstract: 554,755. Reflectors for electric lamps. KORVING, E. M. N. Dec. 15, 1941, No. 16191. [Classes 39 (ii) and 75 (ii)] Cycle, vehicle, and other portable electric lamps, signal lamps, and torches are fitted with reflectors A formed with a plurality of adjoining facets, undulations or flutes and having a central aperture for the insertion or mounting of the lamp bulb. The periphery of the reflector is formed with an integral flange F or fitted with a separate adapting ring against which the glass is held. The facets may be shaped as trapeziums or hexagons.
Patent GB-562135-A (GB)
Title: Improvements in or relating to radiation pyrometers
IPC: G01K1/14
Filed: 1942-11-17
Abstract: 562,135. Observation devices. FOSTER INSTRUMENT CO., Ltd., and DAVIES, J. T. Nov. 17, 1942, No. 16241. [Class 51 (i)] A window structure for covering a furnace peep hole and for use particularly, but not exclusively, in screening a radiation pyrometer, is provided with means for delivering jets or currents of air a,t superatmospheric pressure over the surface of the window exposed to the furnace. As shown in Fig. 1, the sighting tube 2 is provided with a window 1 clamped between a flange 3 of a screwed cap 8 and a ring 4 spaced from the tube 2 by a ring 9. Air supplied through an inlet 6 is delivered through holes and slits 7a, 7b in the ring 4 and passes radially over the surface of the window 1 before passing through the sighting tube 2 to the furnace. In the modification shown in Fig. 3, air is fed to the sighting tube 2 by a pipe 11 and passes rearwardly into the furnace and also forwardly over the window 1 and to the atmosphere through four conduits 12 arranged at right angles to one another and formed between rectangular plates 14, 15 formed with circular openings to expose the window 1. The plates 14, 15 are clamped together and form a rectangular slide which is movable in a rectangular holder formed by plates 17, 18 clamped together, the plate 17 being provided with screwed boss 19 engaging the end of the sighting tube.
Patent GB-960814-A (GB)
Title: Improvements relating to magnetic storage devices
IPC: G11C11/06
Filed: 1963-04-25
Abstract: 960,814. Magnetic storage devices. INTERNATIONAL BUSINESS MACHINES CORPORATION. April 25, 1963 [April 27, 1962], No. 16245/63. Heading H1T. [Also in Division H3] A magnetic storage core is formed of a ferrite material, such as a ferrite of the iron-manganese-zinc system, in which a temporary reduction of the threshold switching field is obtained immediately following the application of a switching field in excess of the normal threshold value. This is known as the relaxation effect, and is shown in Fig. 3 in which the curve 22 illustrates the relationship between the threshold switching field and time in the period immediately following a normal switching operation on the core. In the storage matrix described, Fig. 4, these cores 10 registering binary one have an intermediate permanent state B1, Fig. 2, and the cores registering binary zero are in the saturated remanent state Br in the same magnetic direction. The matrix has word column lines W1-W3, digit row lines D1-D3 and row sense lines S1-S3, the groups of lines being respectively connected to a word driver and selecting circuits 31-34, digit drivers 36 and output loads 26-30. A pulse Hr, Fig. 2, is applied to a word line W1-W3 to read out a selected column of cores, the pulse being of short duration and having an amplitude well in cores of the normal threshold value. This pulse switches any core in state B1 to state Br. Either at the same time or immediately following, a pulse HW of longer duration is applied to those digit lines D1-D3 associated with interrogated cores in which a one is to be written. The pulse HW has an amplitude below the normal saturation threshold, and as shown in Fig. 3 the pulse terminates at time T2 before the relaxation switching threshold exceeds the pulse amplitude. Since other cores in each digit line have not been pulsed by Hr, they are not in the relaxation state and are uninfluenced by pulse HW.
Patent GB-930936-A (GB)
Title: Collapsible bed for dogs and other domestic pets
IPC: A01K1/035
Filed: 1961-05-04
Abstract: 930,936. Dog beds. B. F. RUBIEN. May 4, 1962 [May 4, 1961], No. 16276/61. Class 5(2). A dog bed comprises a main frame 1 supporting a fabric bed proper 2 in a horizontal position, a secondary upper frame 3 attached by collapsible stays 4 to the main frame and supporting a fabric side wall extending around a major part of the bed 2, and legs 20-23 pivotally attached to the main frame, the legs being movable between a collapsed position lying along the main frame and an erect position extending downwardly therefrom and each of said stays comprising two portions hinged together, one portion being provided with engagement means adapted to engage with the other portion when the stay is in its collapsed position and in its erected position. Each stay comprises a tubular member 10 and spaced parallel strips 11 at least one of which has detent means 15 engaging the member 10. The legs are coupled together by cross-pieces 24, 25 and spring-biased to the collapsed position, detent means being provided to hold them in their erect position. According to the Provisional Specification the frames 1, 3 may be C-shaped and the stays may comprise a pair of links pivotally connected together.
Patent GB-233920-A (GB)
Title: Improvement in latch construction
IPC: E05C1/16
Filed: 1924-07-07
Abstract: 233,920. Dexter, L. A. July 7, 1924. Latches, sliding; handles, attacling.-A latch bolt 3 mounted in a cylindrical housing 1 is operated by a cylindrical follower 9 with opposed openings 10, leaving operating portions 12 which make contact with the sides of a V-shaped lug 7 on the bolt projecting into a cut-away portion 6 of the bolt in which the follower 9 is located. Rotation of the follower in either direction withdraws the bolt which is shot by a spring 2. The follower has a rib 13 which engages between projections 22 on the spindle of the handle which is secured by a flange 18 on a screwed-on rose 17 engaging between flanges 20, 21 on the handle 19. The latch can be used on either side of a door.
Patent GB-1254379-A (GB)
Title: An hydraulic hammer drill
Inventor: EDSTROM ROLF-AKE
IPC: E21B6/00
Filed: 1969-03-28
Abstract: 1,254,379. Rotary-percussive drills. R. A. EDSTROM and F. E. S. STAFREN. 28 March, 1969, No. 16300/69. Heading B4C. [Also in Divisions B3 and F1] An hydraulic rotary-percussive drill has plungers 6, 7, 8, 9 mounted in a rotor 2, which are propelled, in sequence against a member 34, attached to the tool but which is splined to rotate with an independent rotor 3. The rotors 2, 3 are separated by a disc 10 having a cam 11 which lifts the plungers 6-9 moving them towards the left as shown in Fig. 1, a pressuretight chamber being formed, adjacent the pressure fluid inlet 22 by each plunger in turn. The cam 11 gives way to an aperture in the disc 10 through which the respective plunger will be pushed by the pressure fluid, to strike the member 34. Further rotation of the rotor 2 permits relief of the forwarding pressure and the plunger is returned by a spring 13. Flushing fluid may be provided through a tube 25. The rotors 2, 3 are rotated by pressure fluid, supplied from an inlet 18 for rotor 2, which is confined by a channel 17 and pushes against spring-loaded vanes 14 before being exhausted through an outlet 19. A similar arrangement with an inlet 20 and an outlet 21 drives the rotor 3.  (For Figures see next page.)