baber/WOPTO huggingface dataset:
Patent GB-330151-A (GB)
Title: Improvements in or relating to films for colour photography
IPC: G03C7/14
Filed: 1929-06-21
Abstract: 330,151. Kodak, Ltd., (Assignees of Hastings, H. E.). Nov. 2, 1928, [Convention date]. Embossing &c.- lenticular elements are embossed on the rear face of the support of a film for colour photography by passing the support, preferably at room temperature, between a s o f t smooth roller and a hard roller bearing a series of ridges or projections, and applying to the rollers a pressure sufficient. to force the ridges into the film support, but insufficient to cause the material of the support to fill the hollows between the ridges. The embossing apparatus comprises a soft roller 4 as of vulcanized rubber, a hard roller 1, formed of a steel shell 6 having a bronze collar 7 on the surface 8 of which are, formed serrations 9, preferably of V-shape, and means for varying the distance between the roller shafts 3, 5 to regulate. the pressure of the rollers on the film F. The collar 7 is accurately turned and polished before the serrations are cut in its surface, and the walls of the serrations are polished and coated with chromium. The serrations may form a continuous helix, or they may be, separate and at right-angles to the axis of the roller.
Patent GB-1188587-A (GB)
Title: A Piston for Internal Combustion Engines
Inventor: ANDERKO KURT
IPC: F02F3/02
Filed: 1967-04-25
Abstract: 1,188,587. Making pistons; composite casting; welding by pressure. KARL SCHMIDT G.m.b.H. 25 April, 1967 [5 May, 1966], No. 19105/67. Headings B3A, B3F and B3R. The crown of a compound, light alloy, single material piston for an I.C. engine is highly worked to improve its resistance to thermal stress cracking. The piston is made by teeming a jet of metal 2 on to the vertex of a preheated piston crown 1 worked, e.g. extruded, to reduce the cross-section at least 90% the crown being placed in a chill mould having an annular trough 3 to receive the washed-off oxides. The projection on the casting formed by the trough 3 is subsequently machined off and the casting pressed in a die (6), (Fig. 2, not shown), by a punch (7) which squeezes any remaining oxides in the bonding zone (8) into an annular trough. The projection on the casting is subsequently machined off. The compound body may alternatively be formed by bonding the parts by upset forging. The compound piston may be made from an aluminium alloy such as AlSiL2CuNiMg alloy.
Patent GB-1033586-A (GB)
Title: Improvements in or relating to electron tubes
IPC: H01J1/20
Filed: 1965-05-06
Abstract: 1,033,586. Thermionic cathode tubes. COMPAGNIE INDUSTRIELLE FRANCAISE DES TUBES ELECTRONIQUES. May 6, 1965 [May 8, 1964], No. 19122/65. Heading H1D. An indirectly-heated tubular cathode, having a welt-joint region 2, 3 which is thicker than the remaining portions of the cathode 1, has one or more pressed portions 4 projecting inwards and of a depth including the wall thickness equal to the thickness of the weltjoint region, so that during assembly of an electron tube, the cathode may be accurately centred by a locating pin 5 having an axis of symmetry coincident with that of the external surface of the cathode. As shown, the cathode is of rectangular section and has either a single longitudinally extending inward projection 4, or two longitudinally-spaced projections on the side opposite the welt-joint region 2, 3. A cathode of circular section may have two inward projections each circumferentially spaced by 120 degrees from the welt-joint region for centring by a locating pin of circular section.
Patent GB-1191449-A (GB)
Title: Fire-Fighting Appliances, particularly for Fighting Large-Scale Fires.
IPC: A62C27/00
Filed: 1969-04-15
Abstract: 1,191,449. Fire-fighting vehicles. KLOCKNER-HUMBOLDT, DEUTZ A.G. 15 April, 1969 [20 April, 1968], No. 19161/69. Heading A5.A. Fire-fighting apparatus for airport or refinery fires comprises first vehicle 8 or 9 fitted, with rotatable spray cannon 7 and connected via hose 6 to second vehicle 1 or 2 which carries tank 3 of extinguishing medium and a motor driven pump, the first vehicle being equipped with means e.g. aerial 10, enabling its remote control. Control may be effected by a command vehicle having a transmitter aerial. In one embodiment the first vehicle is mounted on the command vehicle. First vehicle 8 or 9 may be an air-cushion vehicle or mounted on endless tracks, 9 it may be equipped with a booster pump or a separate extinguishing medium tank and motor pump, a heat-shielded cabin for rescued survivors, and spray nozzles to maintain a fire-free path.
Patent GB-1511014-A (GB)
Title: Camera
IPC: G03B9/02
Filed: 1975-05-07
Abstract: 1511014 Zoom lens K VOCKENHUBER and R HAUSER 7 May 1975 [7 May 1974] 19211/75 Heading G2J A camera has a zoom lens with a varifocal front part 1, a fixed focus rear part 2, an adjustable diaphragm 13, 14 and means for shifting the position of the focal plane in dependence upon the diaphragm setting so as to prevent the rear limit of the depth of field lying beyond infinity. In Fig. 1, this is done by coupling the rear part 2 of the lens to the diaphragm 13, 14 so that adjustment of the latter results in movement of the former. Figures 2,4,5 6 and 7 (not shown) use a similar method. In Figs. 11 and Fig. 12 (not shown), an optical method is used. The rear part 2 of the lens comprises five elements (L1 to L5, Fig. 12) constructed to provide an aperture defect such that the position of the effective focal plane F1, F2, F3 varies according to the aperture size 101, 102, 103. Lens data are given. The embodiments of Fig. 1 and Fig. 2 (not shown) have alternative settings in which the rear part 2 is uncoupled from the diaphragm, Fig. 4 (not shown) has a setting in which the rear part 2 is coupled to the front part 1 for movement in accordance with the focused distance and Figs. 5, 6 and 7 (not shown) have means for indicating in the view-finder the rear limit of the depth of field.
Patent GB-439646-A (GB)
Title: Improvements in or relating to petrol pumps and the like
IPC: B67D7/16
Filed: 1934-06-29
Abstract: 439,646. Exhaust-silencers. PALLO, K., 96, Courtenay Place, Wellington, New Zealand. June 29, 1934, No. 19239. Convention date, Oct. 27, 1933. [A Specification was laid open to inspection under Sect. 91 of the Acts, Jan. 9, 1935.] [Class 7 (ii)] [See also Groups XXVIII and XXXIV] A pressure-fluid motor is provided with a silencer comprising casing 49 in which is a spindle 50 carrying staggered plates or discs 54, the upper plate 53 and the bottom 51 of the casing also being perforated for the passage of the exhaust fluid.
Patent GB-294472-A (GB)
Title: Improvements relating to reinforced concrete bridges
IPC: E01D1/00
Filed: 1928-07-03
Abstract: 294,472. Bauer, B. July 23, 1927, [Convention date]. Reinforced - concrete girders for bridges are provided with castiron come h joined end to end and having spiral lacing wires, and each core comprises a number of longitudinal substantially parallel, cast-iron bars integrally connected together. Projections d may be fitted for the purpose of securing moulds for casting the concrete in position, or sheet metal casings may be previously secured in position for this purpose. Keys may be provided for connecting adjacent cores together. Two independently laced cores e, f, Fig. 6, may be connected by struts g, the whole being embedded in concrete.
Patent GB-814287-A (GB)
Title: Improvements in or relating to non-return valves
IPC: F16T1/38
Filed: 1955-07-04
Abstract: 814,287. Pipe joints. GERDTS, H. R., and GERDTS, F. May 3, 1956 [July 4, 1955], No. 19265/55. Class 99(1). [Also in Group XXIX] A non-return valve adapted to be interposed between pipe flanges comprises a thin closure plate 3 coacting with a seating 1 towards which it is urged by a frusto-conical spring 5 bearing against a thin stroke-limiting plate 6 and formed so that its coils lie in a single plane when the valve is fully open. As shown, the seating 1 is formed on an insert 22 contained within housing 11 and formed internally with three guide ribs 8 for the valve and stroke-limiting plates, the latter plate being retained by a spring ring 7 engaging grooves 9 in the ribs. The housing has two or more threaded bores 12 to receive screws 14 by which the valve is secured to a pipe flange 13 and cut away portions 15 through which pass bolts 16 which secure a pipe flange 2 to the upper side of the valve. The insert 22 has a flange 23 housed in a recess 28 in the housing to prevent the insert from being ejected when the pipe flange 2 is removed. Packing washers 4, 18 are interposed between the valve housing and the pipe flanges. The valve may be used for controlling steam condensate and the insert may be made of corrosion resistant material, e.g. a copper alloy, whilst the housing is made of cast iron. The insert may be cast within the housing in which case the latter is provided with dovetail-shaped recesses, or projections to key with the insert. Alternatively if the insert has a higher melting point than the housing, e.g. if the insert is made of stainless steel, the housing may be cast around the insert. In a further modification the housing is provided with a lateral passageway opening to the main passage through the valve at a point below the seating whilst in another modification two non-return valve units opening in the same direction are mounted in a single housing which has a lateral passage opening between the two valve plates.
Patent GB-1382776-A (GB)
Title: Granulator for granulating plastics strands
IPC: B29B9/06
Filed: 1973-04-24
Abstract: 1382776 Granulator C F SCHEER & CIE 24 April 1973 [22 April 1972] 19347/73 Heading B5A A granulator for granulating plastics strands comprises a knife cylinder and a metal strip forming an anvil knife extending longitudinally of the cylinder and held so that its upper edge is adjustable in sections towards the knife cylinder. As shown, a knife cylinder 12 is mounted in bearings 14 on machine frame 10 and has a hood thereover. An anvil unit 18 comprises an outer member 22 and an inner member 24 clamped together by screws 30 and holding an anvil knife 28 in slit 26 therebetween. Member 22 has a support surface 22a for incoming plastics strands 20. Adjusting screws 34 having locknuts 34a serve to advance the upper edge of knife 28 towards cylinder 12, vertical adjustment of knife 28 being provided by screws 23 having an eccentric 32a thereon.
Patent GB-711614-A (GB)
Title: Improvements in and relating to electrical pressure welding of tire rims
IPC: B23K11/14
Filed: 1951-08-17
Abstract: 711,614. Making tyre rims; welding by pressure. SCHOTHORST, J. VAN. Aug. 17, 1951, No. 19422/51. Classes 83 (2) and 83 (4) The edges of a metal strip to be subsequently beaded to form a tyre rim for bicycles &c. with the beaded edges electrically pressure welded to the rim bed, are pressed to bevel the edges and at the same time the material displaced is forced into indentations in the surface of the pressure member so that one or more continuous or discontinuous ridges or one or more rows of bulges are formed on the bevelled part parallel to its edge on that side which will form the inner side of the bead. A Westwood type rim, Fig. 1, is produced by passing a strip through rollers to provide the edges with bevels and projections 7, bending the edges to form beads 2 so that the projections engage the rim body 1 and by means of roller electrodes welding the bevelled edges to the body of the rim at 3. The welding may take place after the strip has been bent to cylindrical form. With more than one discontinuous ridge or one row of bulges the ridges or bulges are staggered. The bevel may be on the opposite side to the projections, Fig. 2, or on the same side, Fig. 8. Low frequency alternating current may be used with a continuous ridge to give spaced welds. Specifications 4638/10 and 6598/10, [both in Class 83 (ii)], are referred to.
Patent GB-632731-A (GB)
Title: Improvements in matrix drying and forming machines
IPC: B41D1/00
Filed: 1947-07-21
Abstract: 632,731. Printing-surfaces. BAKER, C. C. July 21, 1947, No. 19500. Convention date, Nov. 20, 1939. [Class 100 (ii)] Stereotype matrices are dried and given a curved form by securing them by means of bolster forming bars 33 to the under perforated plate 21 of a pivoted suction chamber V connected to a vacuum element device for withdrawing moist air, and pressing the matrices into contact with a face-heater F shaped to conform to the matrix. The heater F is formed with a resilient covering 46, is heated by elements 44, and is capable of a limited floating movement, being held in place by brackets 49 and rollers 48. The chamber V is mounted on a suction manifold 8 rotatable in a suction housing 4 connected to a suction pump 1 by a tube 2 and housing 3. The chamber V, when moved to bring the matrix into drying position, is held in position by a catch 27 which can be released manually or by an electromagnet 28 to permit a weight 30 to return the chamber V and matrix to open position after the matrix is dried. To the manifold 8 is also secured a box 14 with apertures 75, 76 for admitting air to sections of the chamber V. Arranged between the perforated plate 21 and the outer plate 12, Fig. 4, of chamber V, are a baffle-plate 15 made in two pieces with a transverse opening between them, a reflector plate 18 having passages formed of miniature louvres, and heating elements 19 which may be controlled thermostatically. These plates are secured to side-members 22, as shown in Fig. 3, with spaces 23 to allow of expansion by heat, and packing- members 24, 25 for sealing purposes. Transverse closing of chamber V is by angle irons 13, Fig. 1, and marginal sealing bars 31 are provided. The matrix is held by bolster-forming bars 33, Fig. 7, provided with reduced portions 34 which engage the margin of the matrix under the action of strong springs 41 which can be made to press upon curved bars 37 connected to the bars 33. When the springs 41 are put out of action, weak springs 40 maintain the bolster bars in open position to receive a matrix. The springs 41 allow for shrinkage of the matrix and prevent warping and distortion. Specification 632,870 is referred to.
Patent GB-750331-A (GB)
Title: Improvements relating to electric lighting fittings
Inventor: HUBBLE LESLIE HOWARD
IPC: F21V11/06
Filed: 1953-07-14
Abstract: 750,331. Springs. BRITISH THOMSONHOUSTON CO., Ltd. July 14, 1954 [July 14, 1953], No. 19501/53. Class 108 (3). [Also in Group XI] A louvre for mounting in the mouth of a lamp shade (Group XI) by expansibly engaging the inner rim of the mouth is made in one piece from a strip of springy material and shaped to provide two inner rings 5, 6, concentric with the outer convolution 7 having a gap 8 and contiguous radial portions 9, 10 joining the concentric rings together. The portions 9 may be joined together as by spot welding and/or the two ends 11 of the strip may be welded to the portions 10 to provide rigidity to the louvre.
Patent GB-742092-A (GB)
Title: New or improved tensioning means for roller-chain drives
IPC: F16H7/08
Filed: 1953-07-14
Abstract: 742,092. Chain gearing., DAIMLERBENZ AKT.-GES. July 14, 1953 [July 14, 1952], No. 19508/53. Class 80(1) A tensioning device for a chain 1 comprises a strip or segment 7 of rubber or like material which is profiled to bear on the rollers only of the chain; a twin roller chain being shown in Fig. 2. The strip or segment 7 is carried by a steel strip 5 pivoted at 6 and acted upon by a spring- loaded shoe 11. A second tensioner 14 may be provided on the opposite run of the chain. Reference has been directed by the Comptroller to Specification 628,803.
Patent GB-293757-A (GB)
Title: Manufacture of esters of carbohydrates of the type (c h o)x
IPC: C08B3/00
Filed: 1928-07-05
Abstract: 293,757. I. G. Farbenindustrie Akt.- Ges. July 11, 1927, [Convention date]. Addition to 293,316. Carbohydrate esters. - Air is removed from starch, &c., previous to esterification, by treatment according to the process of the parent Specification, with a current of gas or vapour which is absorbed by the acidylating liquid. A vacuum is preferably applied to assist the removal of the air. Suitable gases or vapours are pyridine, ammonia, formaldehyde, acetic acid, and water vapour.
Patent GB-602488-A (GB)
Title: Apparatus for receiving transmitted radio waves
IPC: H04B1/12
Filed: 1945-07-31
Abstract: 602,488. Radio receiving systems. JONES, J. M. July 31, 1945, No. 19630. [Class 40 (v)] A radio receiving system for the elimination of static or other interference, is based on a theory that the interference has the essential characteristics of a single side-band for a given frequency of its audio characteristic. The invention may be applied as a separate unit to existing receivers. The Figure shows a superheterodyne receiver in which the output from the frequency-converter 6 is branched into a main channel comprising the I.F. amplifier 7 and detector 8, and secondary channels comprising the I.F. amplifier 12 and the detector and phase inverter 15 respectively. The rectified output, comprising audio-frequency signals and interference, is applied to the modulator 17, in which it is impressed as amplitude modulation upon locally-generated oscillations of intermediate frequency from the source 16, The oscillator 16 is synchronised in phase and frequency with the I.F. carrier by means of locking signals derived from the converter 6 over the sharplytuned amplifier 18. The output from the modulator 17, in which the interference appears symmetrically in both side-bands, is made identical in frequency and amplitude with the output from the amplifier 12 with the aid of an equalisation indicator 19. The outputs from the amplifier 12 and modulator 17 are combined in the mixing stage 13 to eliminate the signal side-bands and leave the I.F. carrier and one interference side-band, which is rectified in the detector 14. The output from the detector 14 comprising audio-frequency interference alone is combined in the mixing stage 10 with signals from the detector 8 comprising interference and audio-frequency signals, so as to eliminate the interference. In a modified arrangement (Fig. 2, not shown) in which the invention is applied to a receiver of T.R.F. type, the detector and phase-inverter 15 is branched off at the end of the main R.F. amplifying chain, and the local oscillator 16 may be replaced by sharply-selective circuits tuned to pass the carrier frequency, but not the side-hands or interference.
Patent GB-223338-A (GB)
Title: Improvements in the method of attaching cast aluminium or similar metal front number plates to motor cycles
IPC: B60R13/10
Filed: 1923-08-01
Abstract: 223,338. Magee, T. Aug. 1, 1923. Signs, supporting.-Number plates for attachment to motor cycles are constructed of aluminium or other metal into which are cast metal adapters x for securing to the usual brackets or lugs provided upon the cycle.
Patent GB-147713-A (GB)
Title: Improvements in and relating to the preparation of sugar beets suitable for the manufacture of marmalades, extracts, wines, beers and similar foods
IPC: A23L19/10
Filed: 1920-07-08
Abstract: 147,713. Aumann, A. Dec. 13, 1917, [Convention date]. Ma.terials for making beverages.-To render beets suitable for use in juices, wines, beers, &c., the heated beet mash is treated with steam at or slightly above 100‹ C. The beets, after cleaning and shredding, are agitated and heated to about 55‹ C. and allowed to remain at this temperature for about an hour, when the agitating mechanism is restarted and the steam blown through for an hour or two. The steam is preferably introduced through a perforated pipe passing down the side and across the bottom of the vessel used.
Patent GB-356355-A (GB)
IPC: H01J13/00
Filed: 1930-06-30
Abstract: 356,355. Mercury - vapour lamps. STEINMANN, A., Allersdorf, near K÷nigsee, Germany. June 30, 1930, No. 19832. Convention date, July 1, 1929. [Class 39 (i).] A mercury vapour lamp for alternating current use comprises an illuminating tube 5, Figs. 1 and 2, connected by short tubes 3, 4 to a transverse anode element 1 formed by a single cylindrical tube provided with a quartz cutter or dividing-member constituted by the front edge of a wall or partition 2 at the connecting point of the tubes 3, 4 and their transition point in the illuminating tube 5, the dividing-member extending to the bottom of the tube 5 so that it divides the mercury flowing to the anodes. The tubes 3, 4 are arranged at an angle to the tube 5 and at their junction therewith are formed with narrow bends or kinks to enable the mercury column to be broken at that point when the lamp is tilted to effect ignition. The cathode pole vessel is so shaped that, after tilting, a free space remains above the mercury filling to provide a condensing chamber for mercury vapour which passes over to it.
Patent GB-1021028-A (GB)
Title: Print hammer assembly
IPC: B41J9/10
Filed: 1963-05-20
Abstract: 1,021,028. Selective printers. ANELEX CORPORATION. May 20, 1963 [May 24, 1962], No. 19903/63. Heading B6F. A selective printer hammer assembly comprises a plurality of hammers 10, Fig. 4, pivotally mounted on a shaft 18 supported in recesses 40 of extensions 38 of a base 20, the base being provided with a plate 46, having a resilient blade 44 which on the one hand holds the assembly of hammers 10 in the recesses 40 and on the other hand holds the hammers in a retracted position against drive springs 30. The plate 46 further includes stops 34 extending into the path of the hammers 10 to control their striking motion in that shoulder 36 contact the stops 34 whereby they are deflected with their corresponding hammers to limit the impact of the hammers. Impression of the hammers is effected by sets of driving springs 30 mounted on a cradle 28, the springs acting on followers 15 extending from the shanks 14 of the hammers 10 when an edge 32c of a cam 32 releases the ends of the followers 15 to impact the hammer face 4 against the selected characters 2. Each set of driving springs actuates eight hammers 10. The impact of the hammers 10 may be varied by altering the position of the pivotally mounted cradle 28, supporting the driving springs 30. The lower end of the cradle is connected to a drag link 52, Fig. 1, articulated to a crank 50, having a hole 63 and a lug 64 for engagement with an arm 61 fast with a shaft 58. Rotation of the shaft 58, which imparts the pivotal action to the cradle 28 is controlled by a handle 54, which includes a set screw 66 to urge a cylinder 66 against a collar 56 to lock the crank 50 in its adjusted position.
Patent GB-478276-A (GB)
Title: Improvements in or relating to the electrolytic production of magnesium
IPC: C25C3/04
Filed: 1936-07-17
Abstract: 478,276. Electrolytic production of magnesium. MAGNESIUM METAL & ALLOYS, Ltd. July 17, 1936, No. 19931. Convention date, July 20, 1935. [Class 41] In the production of magnesium by electrolysis of a fused electrolyte containing magnesium chloride, the electrolyte is passed continuously through a series of cells at such a rate that the level in each cell remains constant. The electrolyte may contain also the chlorides of the alkali or alkaline earth metals; the proportion of. magnesium chloride should be less than 30 per cent, preferably less than 20 per cent. The electrolyte withdrawn from the last cell is enriched with magnesium chloride, allowed to stand to settle suspended impurities and re-circulated. If hydrated magnesium chloride is used, the electrolyte should be dehydrated by preliminary electrolysis before re-circulation. The cells may be separate or may be compartments of a larger container ; the process may also be carried out in a long rectangular vessel having a succession of electrodes spaced along it the anodes having the form of plates nearly filling the cross-section so as to produce a compartmenting effect.