baber/WOPTO huggingface dataset:
Patent GB-150890-A (GB)
Title: Improvements in road wheels for motor and other vehicles
IPC: B60B3/04
Filed: 1919-08-15
Abstract: 150,890. Brampton, F. W. Aug. 15, 1919. No Patent granted (Sealing fee not paid). Disk wheels comprise a main disk 3 extending from the hub sleeve 2 to the rim 1 and a dished stiffening plate 5 of smaller diameter secured at or near its periphery to the main disk, all the parts being permanently secured together. The inner edges of the plates are flanged inwardly as at 6, and may abut together or against shoulders 13 on the hub sleeve the ends of which are turned up as at 8 over the plates. The rim is secured to a flange 4 on the main disk. The stiffening plate is secured to the side of the main disk by spotwelding or riveting. The space between the inner edges of the disks may contain distance pieces of wood or a ring of metal tubes 10 and hollow rivets 11 which serve to take the bolts for securing the wheel on the axle.
Patent GB-292795-A (GB)
Title: Improvements in and relating to draughting machines
IPC: B43L13/06
Filed: 1927-07-28
Abstract: 292,795. Nahman, G. July 28, 1927. Draughting - machines. - In a draughting- machine of the kind comprising two parallelogram linkages of which the sides 5, 12 are connected together, the connection is in the form of a pivot permitting angular movement between the said sides so that the instrument can be folded, for packing purposes, into a position in which all the arms of both parallelograms lie in the same direction. The hinges connecting the pa.rallelogram links are of such form that in the folded position all the sides of each parallelogram lie in the same plane with each of the long sides in alignment with one of the short sides. The pivot connecting the two parallelograms consists of a bolt passing through lugs 10, 11 and engaged by a wing-nut 13 which is tightened to secure the sides 5, 12 against relative angular movement while the instrument is being used. The long sides 3, 4 of the upper parallelogram are of tapered form in elevation, Fig. 2, and the hinges 6, 7 connecting them to the side 2 are of such length that the long sides 14, 15 of the lower parallelogram lie, in the folded position, in the space between the sides 3, 4 and the anchor plate 1 carried by the side 2. The draughting head 17 is provided with pins 24, Fig. R, entering key-hole slots 23, Fig. 7. in the side 16 so that these two parts can be readily detached for packing. The vertical ruler 19, is provided with a forked plate 25. Fig. 6. passing over the pivot 26 so that this ruler can also be readily detached. When the rulers are detached they can be packed as shown in Fig. 3, so that the entire instrument does not occupy more space than the folded parallelogram. For raising the ruler above the drawing surface when lines are being drawn in ink, an inclined groove 28, Fig. 4, may be formed in its lower surface and a wedge-shaped member 29 can be adjusted in this groove and clamped by screws 30 and a spring 32. Instead of the plate 1 a tongue may be carried by the side 2 and. clamped near the top left hand corner of the board.
Patent GB-1461721-A (GB)
Title: Helicopter rotor assembly with a redundant centrifugal load support open-end spinning unit
IPC: B64C27/48
Filed: 1975-05-13
Abstract: 1461721 Helicopter rotors TEXTRON Inc 13 May 1975 [13 May 1974] 20116/75 Heading B7W A helicopter rotor blade provided with redundant root structure to carry centrifugal loads should the primary blade securing structure fail comprises a rotor mast 12 which carries a see-saw pivotal mounting 14, 18 for a yoke 16 which extends outwardly within a hollow blade grip member 20 to which a blade 10 is attached by fastenings 24. The blade is normally retained by an elastic strap 110 which at one end fits round a spool 64 enclosed within a fitting 50 secured to yoke 16 and bonded to an elastomeric bearing 42 in turn bonded to a housing 38 bolted at 40 to grip 20. At its other end the strap fits round a spool 100 secured to grip 20 by fastenings 107, the spool having a planar face 108 which is spaced a distance A from a matching face on a member 94 carried by a member 86 having an extension 88 bonded to an elastomeric bearing 84 in turn bonded to a sleeve 80 secured by fastenings 82 to grip member 20. If in operation strap 110 or its mounting should fail the blade will move radially outward in direction 122 with axial distortion of bearings 42 and 84 until face 108 engages member 94, the planar faces of which carry blade loads and permit pitch changing movements to be made.
Patent GB-515926-A (GB)
Title: Rotor for turbines, rotary compressors and the like rotary machines
IPC: F04C19/00
Filed: 1938-07-07
Abstract: 515,926. Turbines and turbo - compressors. TULALMANYKIFEJLESZTO ES ERTEKESITO, K. F. T. July 7, 1938, No. 20130. Convention date, July 7, 1937. [Classes 110 (i) and 110 (iii)] Turbine and turbo-compressor rotors are built up of discs with conical or cylindrical annular struts. The struts 11 may be formed on both sides of and integral with alternate rotor discs; the intervening discs being provided with flanges 12 against which the struts abut. The assembly is clamped upon the rotor shaft 7 between a collar and a nut 10; conical end pieces 14, 15 being positioned between the outside discs and the collar and nut. The end piece 15 is keyed to the shaft and the discs are operatively coupled together either by the friction of smooth surfaces or the contacting surfaces of the discs and struts may be formed with complementary toothing. Figs. 4 and 5 show other forms of rotor struts. The blade space of a rotory compressor, Fig. 1, is separated from the rotor spaces by short cylinders 20 secured at one end to one rotor disc and lying radially within a flange 21 fixed on the adjacent disc. A cooling medium may be admitted to the rotor spaces through passages 17. In a gas turbine, the air compressor rotor 'and the turbine rotor may be assembled as one unit; the two rotor parts being separated by a strut member of a length sufficient to bridge the combustion chamber region. The blade space of the turbine rotor may be separated from the rotor spaces by sealing rings which lie within flanges on adjacent rotor discs.
Patent GB-259926-A (GB)
Title: Improvements relating to the manufacture of photographic silver halide emulsions
IPC: G03C1/047
Filed: 1926-08-16
Abstract: 259,926. I. G. Farbenindustrie Akt.- Ges., (Assignees of Akt.-Ges. f³r Anilin- Fabrikation). Oct. 14, 1925, [Convention date]. Addition to 258,237. Plates, films, and papers; emulsions, preparing. -Decomposition products of proteins, for use in making silver halide emulsions, are prepared by acid hydrolysis instead of by alkali or fermentative hydrolysis as described in the parent Specification. The proteins are treated for some time with hot dilute, nitric, sulphuric, hydrochloric, or other acid. The resulting solutions, preferably neutralized, may be highly concentrated and evaporated to dryness. Reference is made to Specification 235,210 as open to inspection under 'Sect. 91 of the Act.
Patent GB-351264-A (GB)
Title: Improvements in a process of producing concentrated gaseous hydrochloric acid
IPC: C01B7/01
Filed: 1930-07-03
Abstract: Concentrated hydrogen chloride is produced by allowing vapours containing hydrochloric acid to act upon sulphates to form known addition-compounds, from which the hydrogen chloride is later expelled by heating.  Suitable sulphates are those of copper, lead, and cadmium.
Patent GB-1347295-A (GB)
Title: Printing machine
IPC: B41L29/16
Filed: 1971-04-19
Abstract: 1347295 Printing apparatus MATHIAS BAUERLE GmbH 19 April 1971 [28 Jan 1970] 20184/71 Heading B6C A printing machine comprises a plate cylinder 4 and means by which flexible plates produced by an electrostatic copier 17 are fed to the plate cylinder, are held on it during the production of a preset number of printed sheets and are discharged to a receiving tray 23. The platefeeding means includes a pair of rollers 13 and 14, which are driven by a single-revolution coupling in synchronism with the plate cylinder, so that a new plate may be supplied without stopping the plate cylinder.
Patent GB-1521349-A (GB)
Title: Hysteresis alloy
IPC: H01F1/04
Filed: 1976-05-17
Abstract: 1521349 Magnetic alloy ARNOLD ENG CO 17 May 1976 20234/76 Heading C7A A magnetic alloy with very stable magnetic properties, suitable for use as parts (rotors) for hysteresis torque producing devices contains Ni 13-18 Al 7-11 Co 0À5 - 10 Si 0À1-2À0 Fe Bal The alloy is melted to above 1650‹C cast and heat-treated at 1150‹C, cooled at about 300‹C/ minute and either (1) aged at 665‹C for 5 hours, cooled at 14‹C/hour to 550‹C, held for 5 hours then cooled or (2) re-heated to 900‹C, held, cooled to about 600‹C at 60‹C/minute, and then aged as before. Both treatments give satisfactory magnetic properties.
Patent GB-610523-A (GB)
Title: Improvements in or relating to chain links and method of making the same
IPC: F16G13/14
Filed: 1945-08-09
Abstract: 610,523. Making chains. MILLER, R. S. Aug. 9, 1945, No. 20414. Convention date, Nov. 22, 1941. [Clasaes 83 (i), 83 (ii) and 83 (iv)] Uniting by fusion ; casting.-A chain link, preferably for anchor or other heavy-duty chains of high tensile strength, comprises a steel bar with ends doubled back and spaced from the intermediate portion, the space between the ends being filled with a deposit of weld metal fused with and homogeneously united to the ends. The blank may be cut obliquely from a round bar or be formed with bevelled ends 44. It is then heated and bent over a mandrel recessed to receive an interconnected link and the space between the ends is enclosed in grooves 25, 26 in a two-part mould 21, 22 having inclined walls 27, 28. Flux is inserted into the mould and welding effected by an are-welding rod 29. In making stud chain links, a stud 36 is inserted prior to effecting the weld which is thus effected between an end of the stud and both ends of the link, the mould being grooved at its lower end to receive the stud. The other end of the stud may be welded to the link at 42. U.S.A. Specification 2,348,087 is referred to.
Patent GB-1271405-A (GB)
Title: Printing plates
IPC: G03G13/28
Filed: 1969-04-22
Abstract: 1,271,405. Making printing plates electrophotographically. ITEK CO. April 22, 1969 [May 14, 1968], No. 20414/69. Heading G2H. [Also in Division B6] A printing plate blank comprises a substrate with a thermoplastic layer on it and may have a layer of e.g. gelatine or polyvinyl alcohol over the thermoplastic layer. When the thermoplastic layer is electro-photographically imaged and the image developed by heating, voids form in the thermoplastic layer within the image. Printing ink may be applied to the plate and be retained in the voids within the image, so that multiple printing operations can be carried out without re-inking, or the substrate may include an inkimpregnated layer and ink from the layer make its way to the surface of the plate by way of the voids. The ink may be in pressure-rupturable microencapsulated form. In place of ink, an oleophilic or hydrophilic material may be included in an impregnated layer, so as to modify the properties of the printing plate within the image, so that it may be used lithographically. Preferably the thermoplastic layer includes at least one photo-conductor. Materials for the plate are listed.
Patent GB-185302-A (GB)
Title: Improvements in valve operating mechanism for fluid pressure engines
IPC: F01L1/22
Filed: 1921-07-30
Abstract: 185,302. Armstrong Siddeley Motors, Ltd., and Viale, S. M. July 30, 1921. Cam gears.-In means for compensating for variations in clearance due to heat expansion in cam valve-gears wherein the fulcrum of the valve-lever is carried by a second lever connected to a compensating-link, this link is made of nickel-steel or other material of low coefficient of expansion and is attached to the cylinder head so as to be detachable therewith. The valve lever C is actuated by a rod D and has its fulcrum C<2> mounted in a lever E connected to the cylinder head by the compensating-link F. In a modification, the fulcrum E<2> of the lever E is at the opposite side of the valve stem A<2>.
Patent GB-1261946-A (GB)
Title: A colour television image pick-up device and a method of manufacturing the same
Inventor: TAJIRI HISAO
IPC: H04N9/04
Filed: 1969-04-22
Abstract: 1,261,946. Colour television; cathode-ray tube circuits. TOKYO SHIBAURA ELECTRIC CO. Ltd. 22 April, 1969, No. 20514/69. Headings H4F and H4T. [Also in Divisions G3 and H1] A colour television camera system comprises means such as a mirror 82, Fig. 9, for dividing the image into two parts, one of which passes to a pick-up tube 83 providing a brightness output and the other of which passes through a magenta filter 84 to a pick-up tube 85 which is provided on the inside of its faceplate with a filter in the form of alternate stripes of one colour (e.g. red) and no colour. The output of the latter tube is R + ¢ B and B + #R for the low frequency and high frequency components respectively, where 8 is a small fraction, and these two components are separated by respective filters 89 and 90 and fed to a matrix circuit 92 which derives signals R and B. A Y signal derived from the tube 83 via a filter 95 is fed to difference amplifiers 96 and 97 which provide the outputs R-Y and B-Y. The pick-up tubes are ferably vidicons and the internal filter allows the usual relay lens to be omitted. Automatic focusing control.-A square wave synchronized with the line scanning is supplied from a flip-flop 101 to the focusing electrode of a vidicon tube 85 through an addition unit 102. The high-frequency signal output of the tube is selected by a filter 90, averaged over a line period by a filter 99, and fed to a synchronous detector 100, the output of which is reversed in phase and used to control a D.C. source 106 of focusing voltage whereby the focus is controlled to pruduce maximum high-frequency output signal.
Patent GB-1137145-A (GB)
Title: Improvements in refrigerator
IPC: F25D17/06
Filed: 1966-05-10
Abstract: 1,137,145. Refrigerators. GENERAL ELECTRIC CO. 10 May, 1966, [12 May, 1965], No. 20583/66. Heading F4H. In a two-compartment refrigerator cooled air for the storage compartment is supplied through a passage 24 and nozzle 39 into a chamber 36 located in a casing 30 to induce a flow of air from the storage compartment through inlets 43 in the casing, the mixed air from the chamber 36 being supplied to the compartment through outlet 45. A thermostat 51 for controlling the refrigeration system is located in casing 30 and has its sensor 52 located in outlet 45 so as to be responsive to the temperature of the mixed air. Nozzle 39 comprises two passages each including a damper 40, the positions of which are manually adjustable by means of a control wheel 41. Cooled air for passage 24 is obtained from the discharge of a fan (12, Fig. 1, not shown), which draws air from both compartments over an evaporator (9) located in a partition (3) and also discharges cold air to the freezer compartment via a tunnel (19) which accommodates an ice tray. A time controlled electric defrost heater (60, Fig. 4, not shown), and a defrost terminating thermostat (69) are provided, defrost water being supplied to the machinery compartment (6) via a drain (72), channel (73), the rear wall of the storage compartment and a further drain (74). In a modification (Figs. 5 and 6, not shown), the freezer compartment (81) is below the storage compartment (80), the evaporator (84) is located at the back of the freezer compartment and air for the storage compartment is supplied through a duct (90) to an upwardly discharging nozzle (92) to mix with air from the storage compartment in a mixing unit (91) having an outlet (95) to the compartment.
Patent GB-805452-A (GB)
Title: Pilot controlled fluid pressure operated valve
Inventor: MARGRAVE WILTON
IPC: G05D7/01
Filed: 1956-07-04
Abstract: 805,452. Fluid pressure-operated valves. PARKER - HANNIFIN CORPORATION [formerly PARKER APPLIANCE CO.]. July 4, 1956, No. 20651/56. Class 135. A valve between the compressor of an aeroplane jet engine and the leading edge of the engine comprises an inlet 2 in a casing having an outlet 3, two cylindrical valve members 16, 17 biased to engage each other and to engage the valve member 16 with a seat 8 by two springs 19, 23, and a vent 28 leading to the atmosphere through an electromagnetically-operated pilot valve 38. A bleed hole 22, 21 in the head of the valve member 16 allows compressed air from the inlet 2 to enter the chamber 26 formed by the two valve members. When the pilot valve 38 is closed, compressed air enters through the bleed hole 22, 21 to the chamber 26 to build up pressure therein so that the valve member 16 is forced firmly against the valve seat 8 and the valve is closed. When the electromagnetically controlled pilot valve 38 is opened, the pressure in the chamber 26 forces air out through the vent 28 and through holes 33 to the atmosphere, so that the pressure of the compressed air in the inlet 2 blows the valve member 16 off its seat 8 against the bias of the springs 19, 23. The valve casing 1 contains a cylindrical liner 6, having radial passages 31 vented to the atmosphere so that pressure does not build up in the chamber 30 between the valve members 16, 17 and the liner.
Patent GB-477080-A (GB)
Title: Improvements in holders or carriers for spools, bobbins and other articles
IPC: B65D88/04
Filed: 1937-07-26
Abstract: 477,080. Carding spools &c. WILLIAMS, Ltd., J. W., and STOPPARD, A. July 26, 1937, No. 20656. [Class 94 (i)] Spools or like articles are secured on a card &c. by means of tongues integral with the card and adapted to hold the spools in a manner permitting rotation and resiliently pressing the spools against the card to exert a braking action. As shown the tapering tongues 11 are bent up from the card to enter the ends of hollow spools carrying yarn or other material the ends of which may be anchored in slits 15. The whole may be provided with a transparent or other cover or be contained in a box with transparent front.
Patent GB-1077552-A (GB)
Title: Plastic film thermography
IPC: G03G16/00
Filed: 1964-05-19
Abstract: 1,077,552. Heat-sensitive resin layers. KEUFFEL & ESSER CO. May 19, 1964 [May 21, 1963j, No. 20677/64. Headings G2H and G2M. Images are formed by means of a layer of disordered thermoplastic resin e.g. polyethylene, cellulose acetate polyethylen coated paper orglassine, nylon, cellulose acetate-butyrate, polyvinyl-butyral, and polyvinyl chloride copolymers, by applying heat in imagewise fashion to said layer, charging said layer and toning said layer or a thermoplastic resin layer to which part or all of the charge image has been transferred to render the charge image visible. The charge image is toned by means of (1) toner powders e. g. coloured thermoplastic resins such as resin acids and oxidized resin acids containing a black dye or styrene containing carbon black and a black dye, and powders which accept greasy ink, which are fixed by fusing (the powder may be applied by a magnetic brush a negative potential being applied between the brush and the layer of resin or a cascade method); and (ii) solutions of dyes e.g. quinizarine in toluene, excess quinizarine dye in non-image areas being removed by solvent such as heptane, or latyl violet in heptane. The layer may be charged by corona discharge wires or magnetic brushes of iron particles. The resin layer may carry a pencil taking surface of finely ground silica and the surface of the resin may be saponified by treatment with potassium hydroxide/ methanol before or after image formation so that the imaged material can be used as a printing plate. The resin layer may be on both sides of the support and multicolour images may be built up by various exposures and development. Reference has been directed by the Comptroller to the Specification 976,100.
Patent GB-1458425-A (GB)
Title: Can end closures
IPC: B65D47/36
Filed: 1974-05-10
Abstract: 1458425 Riveting AMERICAN CAN CO 10 May 1974 [27 July 1973] 20720/74 Heading B3U [Also in Division B8] A pull tab 32, which is secured by a rivet 40 intermediate its nose portion 36 and handle portion 34 to the score-defined panel 12 of a "pull-open" can end closure, is provided with a preformed camber 70 which is flexed to a more flattened form on riveting of the tab to the panel so that, on doming of the closure under pressure of the can contents when the end is seamed to a can body, the tab handle portion does not arise above the seam rim 24. The camber extends between abutment points 82 adjacent the tab nose portion and mid points 74 of the handle portion, which points are urged against the end panel on attachment of the tab and reactively tensions the slack metal in the end panel resulting from scoring and forming of the panel causing the axis of the rivet to heel from its perpendicular relation to the panel to an inclined position b<SP>1</SP>. However the tab is still sufficiently cambered and stressed that on doming of the end closure under internal pressure, the tab handle portion still does not rise above the seam. An ancillary initiallyruptured score 50, 52 is provided adjacent the rivet.
Patent GB-309796-A (GB)
Title: Improvements in or relating to electric welding
IPC: B23K35/04
Filed: 1928-07-18
Abstract: 309,796. Fitzpatrick, H. D., (Maatschappij tot Vervaardiging van Snijmachines Volgens van Berkel's Patent en van Andere Werktuigen). July 18, 1928. Uniting by fusion.-In electric-arc welding a metal electrode provided with a coating of a different metal and also with a chemical mixture made into a paste with water, is used for welding while the paste is wet. An electrode of iron, soft steel or other metal is first coated with aluminium by dipping or by deposition and is then coated with a paste made by mixing borax and calcium carbide with water. The carbide is converted into slaked lime by the water. The paste may be applied to the electrodes on the job or the electrodes may be previously coated and stored in such a way as to prevent the paste drying.
Patent GB-369502-A (GB)
Title: Improved construction of electric switch
IPC: H01H3/00
Filed: 1931-07-22
Abstract: 369,502. Tumbler switches. HAM, R. W. L. A., 11, Bracken- Gardens, Barnes, London. July 22, 1931, No. 20946. [Class 38 (v).] In a quick-make and break switch, in which a U-shaped contact member 7 is operated by a dolly 1 through the medium of a tensioned spring 10, the contact member is pivoted at 5 to a separate plate 4 fixed beneath the bridge 3, and positive motion is imparted by the dolly to carrv the contact member over its dead-centre by means of parallel extensions 8 engaging lugs 6c to the contact member.
Patent GB-1081804-A (GB)
Title: Containers for the carriage and/or storage of goods
IPC: B65D88/78
Filed: 1963-05-25
Abstract: 1,081,804. Load handling pallets. J. M. BEHAN. May 20, 1964 [May 25, 1963], No. 20975/63. Headings B8H and B8P. [Also in Division B7] A box pallet comprises a base 1, a cover 5 that slides over the base and has channels 6 engaging projections 3 on the base, and an inflatable bag 8 of polyethylene or nylon that holds the contents secure and raises the cover into sealing engagement with the base. A door 12 has inflatable sealing strips around its edges. Inlet and vent valves 9, 10 respectively are provided. A sling may be provided to facilitate handling. The base has longitudinal or transverse runners 2 and the cover has wheels 7 that are raised clear from the ground when the bag is inflated. A fluid may be carried by pumping it into the bag through valve 9 and a vacuum pump with a knuckle-jointed suction arm is then provided for emptying. Due to natural buoyance the containers may be towed or propelled singly or collectively if joined by tow ropes.