baber/WOPTO huggingface dataset:
Patent GB-885080-A (GB)
Title: An improved method of protecting metals against corrosion in a polar organic medium
Inventor: LARBRE JEAN
IPC: C23F11/10
Filed: 1960-01-28
Abstract: 885,080. Preventing corrosion. INSTITUT FRANCAIS DU PETROLE, DES CARBURANTS ET LUBRIFIANTS. Jan. 28, 1960 [Jan. 30, 1959], No. 3148/60. Class 123(1). Corrosion of iron, copper, zinc and aluminium by polar organic media, particularly those having an affinity for water such as mono- and polyalcohols, esters, ethers, phenols and ketones and their mixtures with one another or with hydrocarbons used for example as hydraulic, refrigerating, antifreezing or defrosting liquids, is minimised by adding to the liquid a mixture of from 0.001 to 0.1 % by weight of the liquid of an inhibitor such as an amine or an amine derivative or a quaternary ammonium salt, for example, dodecylamine acetate, a polyoxyethylene derivative of dodecylamine or dimethylbenzyllauryl ammonium chloride, and from 0.01 to 5% of an acid salt of an organic acid, the liquid being maintained at a slightly acid pH value, for example between 3.5 and 7 and preferably between 4.5 and 6.5, by acidification or alkalisation. The acid salts are preferably those resulting from the reaction between weak acids and mineral or organic bases such as the acid citrates, phthalates or succinates of alkali or alkaline earth metals.
Patent GB-142907-A (GB)
Title: Improvements relating to reflectors
IPC: C03C17/10
Filed: 1919-02-08
Abstract: 142,907. Reflecto Metal Co., and Mountjoy, T. W. H. Feb. 8, 1919. Reflectors.-Transparent material such as glass is coated with metal for the production of reflectors by momentarily immersing the glass &c, in molten metal or alloy of low melting point such as stereotype metal. The surface to be coated is first polished, and the surface of the metal is shimmed and cleaned. In order to retain the coating on the glass, the glass may be formed with bevelled edges, or with grooves or recesses, and luting or paint may be applied to the edges of the coating; or when a flat plate of glass is completely immersed so that both faces are coated, an edge of metal may be retained on the front face. The coating may be protected with paint.
Patent GB-1248321-A (GB)
Title: Improvements in or relating to wheeled invalid chairs
Inventor: RUGG CHARLES ERIC JOHN
IPC: A61G5/00
Filed: 1969-01-20
Abstract: 1,248,321. Wheeled invalid chair. MODERN TUBULAR PRODUCTIONS Ltd. 16 Jan., 1970 [20 Jan., 1969], No. 3196/69. Heading B7B. [Also in Division A4] A wheeled invalid chair comprises a metal frame consisting of a front portion 1, 2 of U- shape connected by side bars 5, 6 to a rearportion 3, 4 of inverted U-shape, a pair of wheels mounted adjacent the lower end of the rear U-portion 3, 4, a combined seat-backrest unit 8, 9, pivoted at its front edge, to the upper end of the front U-portion, and adjustable in position by means of a U-shaped rack member 11 whose teeth are engageable with a transverse bar 11b mounted on the side member 5. A legrest 12 is pivoted at its upper end to the front U-portion, and is similarly adjustable by means of a rack member 13. A foot-rest 14 is adjustably mounted on the leg-rest 12, and a tray 16 may be mounted on the front U-portion.
Patent GB-575706-A (GB)
Title: Crankshaft support and grinder
IPC: B24B5/42
Filed: 1944-02-22
Abstract: 575,706. Grinding crank shafts. TRIGGS, W. W. (Winona Tool Manufacturing Co.). Feb. 22,1944, No. 3292. [Class 60] A machine for grinding crank. shafts comprises two standards 11, 12, Fig. 1 supported by table members 17-19, and carrying a head piece 10, oval in cross section, with a longitudinal slot 30 bounded by ribs 28, 29 with flanges 31, 32 ; brackets 35, 36 are adjustably secured to the head 10, to suit the length of the crankshatt, by plates 38, Fig. 2 engaging ledges 33, 34 in the ribs 28, 29 and bolts 39 passing through heads 37 of the brackets. Upon the standard 11 is a shelf 40 carrying a motor which drives, through a gearbox 45, a chuck shaft 46, which with another chuck shaft 47, in bracket 35 holds the crankshaft 48 with a clear space to the floor beneath it. Mounted in the standards is a shaft 49 upon which is slidable and oscillable a guide 54 having slidable therein a stem 56 carrying a bracket 55, located between lugs 57, 58 of a grinder framework 59 which is supported by the crankshaft bearing through a hook 71, Fig. 4 provided with ball bearings 76 and roller bearings 72, 73, the hook having a swinging part 75 held down by a spring 74. The grinder framework includes a shaft 70 carrying at its upper end a grinding-disc 68 operating with its flat upper face, and adjustable by a nut 65 on a shaft 61, which carries the hook 71 and is acted upon by a spring 62. The arrangement described above is for grinding a throw bearing, the grinder assemblage during grinding oscillating about the shaft 49 and rising and falling, and also being oscillable laterally about the shaft 61. When treating a main bearing, the grinder assemblage is held against up and down and oscillating movement by means of two clamp members 82 adapted frictionally to hold the shaft 61, and carried pivotally on a lug 85 of a bracket 77 - which is held on the head 10 by an extension 78 engaging rib 29 and a screw member 79 and nut 80 engaging the rib 28.
Patent GB-741235-A (GB)
Title: Improvements in or relating to metal fabricating processes and products
IPC: B23K9/235
Filed: 1953-02-05
Abstract: 741,235. Making metal articles. GENERAL ELECTRIC CO., Ltd., and GARDINER, H. W. B. Dec. 18, 1953 [Feb. 5, 1953], No. 3292/53. Classes 83 (2) and 83 (4). Bending; welding.-In a process in which metal is formed or shaped and subsequently electric arc welded, molybdenum disulphide lubricant is applied between the forming or shaping tools and the work-piece which' is welded without previous complete removal of the lubricant. The process can be applied to aluminium, copper or their alloys or to stainless steel. The lubricant in powder form is applied continuously or from time to time either to the tools or the work-piece. In making tube from aluminium or aluminium alloy strip, the bending rolls are lubricated by impregnated pads or have surfaces capable of being impregnated with the lubricant, and the seam is subsequently welded using a gas, e.g. argon, shielded tungsten electrode. Specification 741,234 is referred to.
Patent GB-141671-A (GB)
Title: Improvements in or relating to alternating current induction motors
IPC: H02K17/18
Filed: 1920-02-03
Abstract: 141,671. Aktieselskabet Jydsk Electro. April 12, 1920, [Convention date]. Alternating-current motors; coils and conductors; cores.-To improve the starting torque and to limit the starting current in induction motors, the short circuited armature bars are constructed in layers so that their conductivity varies in a rising degree according to their distance from the stator. The bars of the rotor windings 6 may be made of at least three different materials a, b, c,. or the same relative conductivity may be. obtained by making portions a, 6, c, of different cross-section and the same or different materials, e.g., as shown in Fig. 1, so that the effective resistance of the rotor decreases as the speed increases. The Specification as open to inspection under Sect. 91 (3) (a) also describes the rotor iron 2, Fig. 1 (Cancelled), as extended axially beyond the stator iron by means of magnetic members 3 and also the short circuiting rings as consisting of a copper ring 4 and a ring 5 of high resistance material, e.g. nickeline, conductively connected together so that at starting the stray-fields will displace the current in the short-circuiting rings to the less conductive portions 5. The use of any number of layers of materials of different specific resistance in parallel sided slots is also described. This subject-matter does not appear in the Specification as accepted.
Patent GB-1365068-A (GB)
Title: Gear tooth profile testing mechanism
IPC: G01B5/20
Filed: 1971-01-27
Abstract: 1365068 Gear tooth profile testing DAVID BROWN GEAR INDUSTRIES Ltd 24 Jan 1972 [27 Jan 1971] 3340/71 Heading G4H Apparatus for testing the tooth flank profile of an involute gear has a first rotary pulse generating encoder 22 driven through tapered roller 19 and disc 20 by circumferential movement of the gear base circle, a second rotary pulse generating encoder 17 mounted on member 13 movable in a linear path tangential to said circle and driven by roller 15 on fixed rail 14 and means for comparing the two output signals from the rotary encoder and deriving a third output therefrom. A vertically withdrawable stylus 18 engages the flanks of teeth 25. Calibration.-Roller 15 of encoder 17 is placed against disc 20 and the disc is rotated. The pulses from encoder 17 are counted during a count of 10,000 pulses from encoder 22. The outputs are adjusted for equality by relative movement of disc 20 and tapered roller 19. Testing.-The gear-wheel is driven anticlockwise. For a leading flank, cam member 13 is driven by the gear; for a trailing flank it is driven by an electric motor and slipping clutch to maintain contact between the gear and stylus 18. Pulses from encoder 22 are shaped (27) and fed by manual switch 53 to one of several stages of divide by two circuits 38 to 43 and to one side of bi-stable 44. The pulses from encoder 17 are shaped (36) and fed via another section of manual switch 53 to divide by two circuits 45, 50 and thence to the other side of bi-stable 44. The mean voltage level of bi-stable 44 is fed via low-pass filter 52 to pen recorder and/or meter 51. The output of pulse shaper 36 is also fed to detector 55 which, on arrival of a pulse, switches on recorder 51 by switch 59 and actuates delay 56. After a quarter of a second, during which the motion of member 13 becomes stabilized, gate 57 opens and the pulses from 17 partly enable bi-stable 58 which is holding divide by two circuits 45-50 inactive. To ensure the desired phasing between the two inputs to bi-stable 44, outputs of preselected polarity from circuits 40, 41, 42, 43 are fed to NAND gate 54 and a pulse from this gate enables flip-flop 58, switches on divide by two circuits 45-50 and causes actuation of flip-flop 44 in the desired manner. At the end of the measurement, the pulses from encoder 17 cease, pulse detector 55 switches off and the recorder 51 is stopped.
Patent GB-342139-A (GB)
Title: Improvements relating to collars for personal wear
IPC: A41B3/00
Filed: 1930-01-31
Abstract: 342,139. Collars for personal wear. JACKSON, G., 6, Eastfield Avenue, Monkseaton, and SMITH, R. E., 47, Oaklands Gosforth, both in Northumberland. Jan. 31, 1930, No. 3366. [Class 141.] A wing collar is formed adjacent to the usual tabs e with cut-away portions d to provide a distinct gap and definite points d<1> which engage under the knot of the bow or tie and prevent the knot slipping downwards. In a modified construction, the cut-away portions are approximately semicircular in shape, while in a further modification, described in the Provisional Specification, they are triangular.
Patent GB-1451135-A (GB)
Title: Wire electrode electro erosion apparatus
IPC: B23H7/06
Filed: 1974-01-24
Abstract: 1451135 Electro-erosion ANDREW ENG CO 24 Jan 1974 [29 May 1973] 03397/74 Heading B3V [Also in Division G3] An electro-erosion apparatus comprises means for producing relative movement between a workpieee 10 and a wire electrode 11, an electrode support 65, 66 for selectively inclining the electrode 11 within a plane, means to adjust the position of the electrode support 65, 66 to maintain a constant angle between the cutting direction 25 and the plane in which the electrode 11 is inclined and means 61 for preventing movement of the electrode 11 and workpieoe 10 when the machining gap is below a preselected value. A change in direction of a line being traced by a tracer head under the control of tracer controls 40, 42 is detected by photo-cells 32, 33, signals 62 from which generate an error signal 55 which is applied to a motor 56 to rotate a spindle 31 until the cells 32, 33 are again balanced. The reorientation of the spindle 31 causes a change in a signal 35 which changes slave controls 45, 47 controlling movement of the workpiece 10. The error signal 55 is also applied to a motor 78 which rotates pulleys 70, 71 mounting guides 65, 66 for the electrode 11 so that the plane in which the electrode 11 is inclined is maintained at 90 degrees to the new cutting direction 25. If the machining gap width falls below a preselected value as indicated by a gap voltage signal 60, the error signal 55 and analog switches 41, 43 are disabled by a drive control 61 to prevent further motion of the electrode 11 and workpiece 10 until the gap width is at least equal to the preselected value. In another embodiment, Fig. 5, the electrode guides 125, 126 are mounted on pantographs 100, 105, each of which is pivotable about a pin 110, 112 and is pivotally connected to a cross slide 115, (120) (Fig. 6, not shown) mounted in a rotor 117. The inclination of the electrode 11 may be adjusted by moving the slides 115, (120) within the rotor 117 by means of a pivotable lever arm (132). The lower pantograph 105 may be replaced by a fixed electrode guide (130) (Fig. 7, not shown).
Patent GB-1292424-A (GB)
Title: Exposure setting device in photography apparatus
Inventor: LINDNER FRITZ
IPC: G03B7/083
Filed: 1971-02-01
Abstract: 1292424 Exposure setting indicators PENTACON DRESDEN KAMERA-UND KINOWERKE VEB 1 Feb 1971 3581/71 Heading G2A A photographic exposure setting device has a light indicator to provide an indication of whether the set exposure factors correspond to an under-, over-, or correct exposure, the indicator having a luminous surface the light-dark edge of which is displaceable in dependence upon the object brightness and set exposure factors, the lightdark edge being aligned with a fixed mark to achieve correct exposure. The luminous surface may be formed by an illuminating diode 7 having three electrodes to one of which 6 a signal is applied which varies in proportion to light incident upon a photo-conductive cell 1. The device may be used in a camera or a hand held exposure meter.
Patent GB-448951-A (GB)
Title: Improvements in or relating to rotary pumps and engines and rotors for rotary pumps and engines
IPC: F04C2/36
Filed: 1935-02-04
Abstract: 448,951. Rotary engines. LEVETUS, F. B., and KEELING, G. V., M.W. Service Station, Pickford, and BOOTH, E., 95, Butt Lane, both in Allesley, near Coventry. Feb. 4, 1935, No. 3626. [Class 110 (ii)] In a rotary engine or pump of the rotaryabutment type, the root of a blade T on the rotor R, and the shape of the recess P in the abutment Q, are such that the front and rear edges of the recess successively engage and disengage with the leading and trailing faces of the root of the blade as the latter moves through the recess. No compression of trapped fluid occurs as contact is made only on one face of the blade root, the other side of the root allowing free access of fluid to the recess. The curves AB, CD, may be.obtained by rolling the rotors together and tracing the paths of points A and C, or can be calculated from the following equations : where a is the radius of the abutment member, n =the multiple of this radius to give the radius of the rotor, 2#‹ is the angle subtended by the arc of the sealing member occupied by the recess.
Patent GB-1392311-A (GB)
Title: Stockyard fencing
IPC: E04H17/16
Filed: 1972-01-26
Abstract: 1392311 Stockyard fencing JOHN H TAYLOR LTD 25 Jan 1973 [26 Jan 1972] 3652/72 Heading E1B A stockyard fence comprises a plurality of barrier elements 1, 2 pivotally mounted between posts 11 by eyed-bolts 4 about a horizontal axis offset from the middle of the element so that on pivotting the elements through 180‹ the gap beneath the element changes size. The element is secured in the two limiting positions by pins 10 pasing through U-section lugs on the post and lugs projecting from the barrier. The barrier element may also be pivotted about a vertical axis by removing the pins 10 at one side of the barrier.
Patent GB-212235-A (GB)
Title: Process for the preparation of medicated dressings
IPC: A61L15/44
Filed: 1924-02-13
Abstract: 212,235. Bardin, J. Feb. 27, 1923, [Convention date]. Medicaments of external application.-Medicated cotton wool, of the kind containing capsicum, mustard or other counter-irritants or medicaments, is prepared by treating the cotton wool with a solution of the. medicament in alcohol, together with glycerine which is also soluble in the alcohol and serves to bind the medicaments in the cotton wool. The wool is soaked in the liquid, freed from surplus liquid by draining or centrifugal action, dried, and if desired carded. The Specification as open to inspection under Sect. 91 (3) (a) relates also to the use of ether or other solvent in place of alcohol and to the use of oil or grease in place of glycerine. This subject-matter does not appear in the Specification as accepted.
Patent GB-948401-A (GB)
Title: Improvements of and relating to machine tools
IPC: B23C1/12
Filed: 1961-02-01
Abstract: 948,401. Machine tool details. H. DECKEL, and F. W. DECKEL. Feb. 1, 1961 [Feb. 5, 1960; Sept. 9, 1960], No. 3770/61. Headings B3B, B3C and B3K.  A milling-machine comprises a guide on a gear-box or an intermediate support slidable on the gear-box, and two spindle heads carried on the guides. A base 10, Fig. 2, supports a horizontally movable member 18, on which is mounted a vertically slidable gear-box 22. A distance-piece 26 horizontally slidable on box 22, carries a milling spindle 28, and a spindle head 30 is horizontally movable on distance-piece 26, and carries a swivelling drill head 32. The drive for drill spindle 34 is is from a gear 36, an elongated pinion 38, a gearwheel 42 on spindle 28, an elongated pinion 48 which drives a pinion shaft 50. A second gearwheel 44 on shaft 28 drives an attachable toolhead 46, Fig. 4, when tool head 30 is retracted. Pinion 48 may be placed in head 30, so that it is driven by gear 44. In a modification, Fig. 5, elongated pinion 64 is driven by gear 62, and drives shaft 68 through gears 66, and transmission 68. In a further modification, Fig. 6, three elongated pinions are provided. Stops are provided which are actuated by a pin on head 30 to limit the movements of the heads.
Patent GB-1393202-A (GB)
Title: Apparatus for treating objects advanced along a predetermined path
IPC: B05B13/04
Filed: 1973-01-25
Abstract: 1393202 Blasting ATLAS COPCO AB 25 Jan 1973 [18 Feb 1972] 3804/73 Heading B3D [Also in Divisions B2 and D1] A spray nozzle 19 for coating sheets 1 passing below it on a conveyer 3 is mounted on a beam 7 rotatable about an axis 6 and as the beam rotates the nozzle is given an equal and opposite rotation so that it remains in the same relative spatial orientation. As shown the nozzle is mounted on a rotatable sprocket 13 and a chain 14 connects this sprocket to a fixed sprocket 15 on the axis 6. The continuous rotation of the beam 7 is provided from a chain 17 and sprocket 18 mounted on a motor (not shown). Paint or other treating material is passed down a pipe 21. The chain 14 may be replaced by a torsion transmitting member 25 wherein the joints 24, 26 may be universal joints, bellows or helical springs and the paint tube 21 may pass either inside or outside the tube 25. If the end of the tube is not fixed at 27 directly above the axis 6 then the tube 25 will need to be telescopic. Any known type of spray head may be used and it can be actuated in known way so that it only operates over the conveyer.
Patent GB-491962-A (GB)
Title: Improvements relating to the treatment of mineral oils
IPC: C10G27/04
Filed: 1937-02-09
Abstract: Hydrocarbon oils are refined, to produce stable lubricating or medicinal oils, by subjecting the oil for 2 1/2 to 4 hours to the action of air, or a gaseous mixture of free oxygen with inert gases containing approximately 21 per cent of oxygen, at a temperature between 400 and 500 DEG  F., in an amount equivalent to 5 to 7 cubic feet of air per hour for every 300 grams of the oil, treating the resulting oxidized oil with sulphuric acid, and separating the resulting acid sludge.  The oxidation may be carried out in the presence of copper naphthenate, manganese stearate or other heavy metal soap catalyst, and the oxidized oil may be clay filtered after the treatment with sulphuric acid, either before or after the separation of the acid sludge.  Prior to oxidation, the oil may be treated with propane to remove asphaltic constituents, and with acid or selective solvents to remove aromatic and unsaturated compounds. The oxidized oil may be treated with selective solvents to extract undesirable constituents formed during the oxidation process.  In examples, lubricating oil distillates are treated with 5 to 7 cubic feet of air per hour per 300 grams of oil (1) for 3 to 4 hours at a temperature of 450 DEG  F. in the presence or absence of a small quantity of copper naphthenate, the product being treated with concentrated sulphuric acid, separated from the sludge, and filtered through clay, (2) for 2 1/2 to 4 hours at a temperature of 400 to 450 DEG  F., the product being treated with fuming sulphuric acid, separated from the sludge, neutralized, washed with alcohol and filtered through clay, and (3) for 4 hours at a temperature of 450 DEG  F., the product being treated with fuming sulphuric acid, neutralized, washed with alcohol and filtered through clay.
Patent GB-1523414-A (GB)
Title: Still camera
IPC: G03B17/30
Filed: 1977-01-31
Abstract: 1523414 Cameras AGFA-GEVAERT A G 31 Jan 1977 [30 Jan 1976] 03894/77 Heading G2A A camera has a film spool holder supported on a cover which can hinge away from the camera, so that the holder is disengaged from the film spool in the camera, thus allowing the spool to be removed through a rear door. The camera has a back (not shown) which can be unfastened by a bolt 2, so that the cassette 3 can be removed and replaced. When in use, the cassette is engaged by a film spool holder 8 which is rotatably mounted on a small hinged cover 10. The cover is pivoted to the main camera body by a spindle 11, and can hinge outwards from the closed position of Fig. 2 to the open positon of Fig. 1. It is urged by a spring 12 into this position, and is locked in the closed position by the same bolt 2. Cover 10 carries a gear-wheel 13 which is fixed to holder 8, and which engages with another gear-wheel 16 also mounted on cover 10. In the normal operating position, cover 10 is closed, and a gear-wheel 5 at the end of a spindle 6 engages with a gear-wheel 7 which drives the film take-up spool. Thus rotation of spindle 6 by means of a handle causes the film to be transported from supply spool 9 to the takeup spool. In this position gear 5 is clear of gear 16. When rewind is required, spindle 6 is pushed downwards so that gear 5 moves clear of gear 7 and engages with gear 16, as in Fig. 2. Rotation of spindle 6 now causes holder 8 to rotate, so winding the film back on to spool 9. Bolt 2 is now actuated to release cover 10 and the camera back. Cover 10 pivots downwards so that holder 8 disengages from spool 9, and this can then be removed through the opened back.
Patent GB-1451746-A (GB)
Title: Diapers
IPC: A61F13/15
Filed: 1975-01-29
Abstract: 1451746 Diapers COLGATE-PALMOLIVE CO 29 Jan 1975 [4 Feb 1974] 3938/75 Heading A5R A disposable diaper 10 is folded into a configuration with its lateral margins 28, 30 in contact, these lateral margins being releasably secured to each other in the front half 20 of the diaper whereby the front section can be retained temporarily in the folded configuration while the back section 22 is unfolded for application of the diaper to an infant. As shown the lateral margins are secured together by a single drop of adhesive 36 at between two and four inches from the centre of the diaper or at about one-sixth of the length of the diaper. The diaper has an impervious plastics backing sheet and a water-pervious lining sheet between which is contained a layer of absorbent material. It may also be provided with adhesive fastener units 26 on the back section.