baber/WOPTO huggingface dataset:
Patent GB-1149968-A (GB)
Title: Improvements in or relating to blind-riveting tools
IPC: B21J15/04
Filed: 1966-06-15
Abstract: 1,149,968. Blind riveting. GEORGE TUCKER EYELET CO. Ltd. 15 June, 1966 [15 June, 1965], No. 26612/66. Heading B3U. A hand-operated blind riveting tool adapted for use with a widely varying range of sizes of blind rivet assembly comprises a housing having an aperture large enough to receive the mandrel of the biggest blind rivet assembly, mandrel pulling means within the housing and a nosepiece member movably mounted on the housing and having at least one aperture smaller than the aperture in the housing and which is superimposed thereon when the tool is used to set a small blind-rivet assembly. The housing is integral with a sheet-metal handle 10 and includes a base 12 and side-walls 14. A second handle 22 is pivoted between the side-walls and has a pin 26 which supports a mandrel pulling jaw 16. A co-operating jaw 18 is pivoted to the jaw 16 and has teeth which engage the mandrel and clamp it against a face 17 of the jaw 16. The mandrel 30 of a blind rivet assembly which has been inserted through workpieces W passes through a hole 34 in an embossed portion 36. When a small mandrel is to be used a nosepiece member forming an auxiliary anvil 42 is slid along the base 12 so that a small aperture 44 is aligned with the aperture 34. The aperture 44 is formed in an embossed portion 46 of the nosepiece which fits over the embossed portion 36. In a modification the auxiliary anvil is formed in the base of a U-shaped member the arms of which are pivoted to the housing walls. The jaw 16 is connected to the jaw 18 by an eccentric pin which enables the distance between the teeth on the jaw 18 and the cooperating face 17 to be varied to suit the mandrel diameter.
Patent GB-467393-A (GB)
Title: Improvements in variable speed power drives including adjustable diameter sheaves
IPC: F16H9/12
Filed: 1936-10-01
Abstract: 467,393. Expanding-pulley gearing. ALLIS-CHALMERS MANUFACTURING CO. Oct. 1. 1936, No. 26635. Convention date, Dec. 16, 1935. [Class 80 (ii)] A power transmission sheave of variable diameter-comprises a hub 27, Fig. 4, having a plurality of gear discs 32, 35 fast thereon, these fixed discs having a plurality of spaced apertures 38, Fig. 5, therethrough. A plurality of slidable discs 42 alternate with the fixed discs and each slidable disc 42 has spaced axial flanges 43 each such flange projecting through one of the apertures 38 and abutting against the next slidable disc. The slidable discs 42 with the flanges 43 are connected by through bolts 46 to an end slidable disc 41 to form a unitary structure which slides relatively to the unitary structure formed by an end fixed disc 32 integral with the hub 27 and other fixed discs 35 splined on the hub and held in place by a retaining nut 39. The sliding structure 42, 41 abuts against a nut 50 which screws on a thread 31 on the hub 27 and is turned relatively to the hub by a wrench to change the effective diameter of the pulley when it is stopped. A modified pulley shown in Fig. 6, can be changed in diameter while running. Between the hub 27 and the control screw 73 is a ball thrust bearing 61 which allows the screw 73 to be non-rotary when the pulley is running, and between the end sliding disc 41<1> and the control nut 68 is another ball bearing 70 which allows the nut to be held against rotation by an anchoring arm 72. The pulley while in motion is operated to change speed by a wrench applied to the squared end 74 of the screw 73. Means are described by which a complete pulley 20, Fig. 2, can be moved along with a driving motor 15, in the line of the V-belts (not shown) to maintain the belt tension while the diameter of .the rotating pulley is being changed. The motor 15 is carried on a plate 16 adapted to be slid in a line perpendicular to the plane of Fig. 2, when a control shaft 89 is turned by hand. The plate 16 slides in a straight line over four antifriction bowls 80. The control shaft 89, which is screwed to shift the plate 16, is connected through a bevel toothed pair (not shown) to a spindle 108 connected by a chain pair 109, 111 to the pulley control screw end 74 which is like that of Fig. 6, The pulley is carried in the line of the belts as its diameter varies.
Patent GB-649888-A (GB)
Title: Improvements in or relating to electric arc welding
IPC: B23K9/167
Filed: 1948-10-14
Abstract: 649,888. Uniting by fusion. BABCOCK & WILCOX, Ltd. Oct. 14, 1948, No. 26722. Convention date, Oct. 17, 1947. [Class 83 (iv)] In a method of electric arc welding, a stream of inert gas of relatively low arc voltage characteristics, i.e. one requiring a relatively low voltage to start and maintain an arc, is directed about the arc and a stream of gas of relatively high arc voltage characteristics is directed around the first gas stream. A tube blank 10 of stainless steel normally filled with hydrogen is moved relatively to a welding head having a tungsten electrode 11 mounted in a vertically adjustable holder 13 and a nozzle 15 which terminates in a tip 20 provided with a discharge annular port 21 slightly above the level of the arcing end of the electrode 11. Inert gas, e.g. helium, supplied to a conduit 27 flows through passages 24 in a barrel 23 and, when this is adjusted to abut the washer 29, through slots 26. It is discharged from the port 26 about the arc. A manifold 31 is adjustably mounted about the nozzle 15 and has an annular discharge port 30 through which flows a gas of relatively high are voltage characteristics, e.g. hydrogen, supplied through a conduit 40 to embrace the first gas stream. Liquid cooling means 45 are provided about the welding head. The inner and outer gas streams may be helium or argon and hydrogen or argon and helium.
Patent GB-704703-A (GB)
Title: Improvements in or relating to high melting point calcium grease of low soap content
Filed: 1951-11-15
Abstract: A lubricating grease comprises a lubricating oil and 1-10 per cent. by weight of the total of each of the following: calcium soap of substantially saturated fatty acid of C12-C22, calcium soap of partially dehydrated castor oil, and calcium salt of aliphatic carboxylic acid of not more than 6 carbon atoms.  Preferred greases contain 2-5 per cent. each of calcium, salts of stearic or hydroxy, e.g. 12-hydroxy, stearic acid, dehydrated castor oil and hydroxy acids such as lactic, hydracrylic or hydroxy butyric.  Castor oil is dehydrated to remove about half of the hydroxy groups or to increase its iodine number to about 90-110, preferably 95-105, as by heating with lead oxide, sulphuric or phosphoric acid or sodium acid sulphate.  The lubricating oil may be mineral or synthetic.  Mineral oils of viscosity 100-5000 S.S.U. at 100 DEG F., especially of V.I. 85 or above, are preferred.  Preferably the soap is formed in mineral oil, and complex esters, polyglycols or their ethers added later. Dispersion of the calcium salts is facilitated by 0.5-5 per cent. of C12-C22 alcohol such as hydroabietyl.  Inhibitors such as phenyl naphthylamines, metal deactivators, anti-oxidants, extreme pressure compounds, thickeners and viscosity index improvers may be incorporated.  The fats and acids may be mixed with part of the lubricating oil, lime added for saponification, followed by the remaining oil.  The greases show low bleeding, high resistance to water, high dropping point and resistance to shear.
Patent GB-994725-A (GB)
Title: Process for producing multicellular synthetic structures
IPC: C08F20/62
Filed: 1963-07-05
Abstract: Cellular synthetic resins are produced by a process which comprises intimately mixing one or more of acrylamide, acrylic acid, methacrylamide and methacrylic acid with a foaming agent, subjecting the mixture to ionizing radiation thereby polymerizing and converting the monomers into a polymer in which is incorporated the foaming agent and which is capable of being softened by heat, and thereafter heating the polymer to effect foaming and the forming of cross-links between the polymer molecules. The original mixture may also contain a monomer copolymerizable with the above monomers, a cross-linking agent, or an acid serving to promote the decomposition of the foaming agent. The radiation is preferably gamma rays emitted from cobalt 60; the copolymerizable monomer may be styrene, methyl methacrylate, vinyl acetate or acrylonitrile; the cross-linking agent may be diallyl phthalate, triallyl cyanurate, triallylamine, diallylmalate, diallyl succinate, diallylamine, diallyl citraconate, triallyl phosphonate, diallyl itaconate or triallyl aconitate; the acid may be sulphuric, phosphoric, pyrophosphoric, oxalic, iodic, succinic, tartaric or fumaric acid.  Before irradiation the monomers may be partially polymerized by means of a conventional catalyst.
Patent GB-195665-A (GB)
Title: Improvements in mounting and driving double helical gear wheels
IPC: F16H1/06
Filed: 1921-10-11
Abstract: 195,665. Royce, F. H., and Rolls- Royce, Ltd. Oct. 11, 1921. Toothed gearing.-In double helical gearing, a hollow driving-pinion c is carried axially movable in roller bearings c<2> with the inner race moving with the pinion and the outer race stationary, or in ball bearings in which both races move with the pinion. The pinion is connected to the crank-shaft d by an intermediate hollow flexible shaft e respectively connected to cups c<4>, d<5> secured to the pinion and crank-shaft, by teeth c<5>, d<6> permitting slight relative axial movement and angularity. The pinion c is also connected directly to the crank-shaft by a Weston clutch f which will transmit about one-eighth of the load, for the purpose of damping out vibration. The driven gear-wheel g is secured to a shaft supported by roller bearings g<3>, g<5> and a ball thrust bearing g4. The whole of the gearing is carried in a divided casing provided with supporting- webs. According to the Provisional Specification the invention is applicable for use with aero engines, turbines, and the like.
Patent GB-1427735-A (GB)
Title: Packing rodlike articles
IPC: B65B11/36
Filed: 1972-06-08
Abstract: 1427735 Machines for packaging cigarettes MOLINS Ltd 6 June 1973 [8 June 1972] 26900/72 Heading B8C Batches of cigarettes are pushed by pushers 11 from compartments 2 in intermittently rotatable turrets 3-6 into pockets 10 mounted on an intermittently movable conveyer 7. The cigarettes are moved lengthwise into the compartment 2 from a hopper and the arrangement is such that, at the rest period of the conveyer and turrets, one of the pockets 10 is aligned with a compartment 2 at position P1, P2, P3, P4. Each pusher 11 is driven from the conveyer drive motor 35 through a cam gear 37; alternatively, a single cam gear may drive all the pushers 11. Metal foil is fed by rollers 13, cut by knives 14 and picked up by a suction drum 15 from which alternate pieces of foil are fed by suction drums 16-18 to one of six platforms 19 on an intermittently rotatable wheel 20. Each platform is provided with a table 51 movable radially of the wheel 20. Intermediate pieces of foil are fed from the drum 15 to one of six platforms 22 on a wheel 23 similar to wheel 20. Each wheel 20, 23 carries six packet formers 24 each provided with a pusher 44 and operable by a cam gear 49 driven continuously by the motor 35. The arrangement is such that while the wheel 20 is stationary, a piece of foil (which forms an inner layer of the packet) is fed on to a platform 19 associated with a former which is at position P5. The wheel is then rotated through six intermittent movements to bring the former back into alignment with a pocket 10; during these movements the foil is wrapped around the former 24 by means of tucking devices described with reference to Figs. 3-8 (not shown), the wrapping operation being completed as the wheel moves to position P6 at which time an outer label (which forms an outer layer of the packet) is fed on to platform 19. A web 25 of label material is fed and cut by knives 26, alternate labels being fed to a plate 27 by a suction drum 28. The intermediate labels are fed by suction drums 29-32 to a plate associated with wheel 23. The label is removed from the plate 27 by lugs 33 on a conveyer 34 and is wrapped around the former 24 by tucking devices described with reference to Figs. 9-14 (not shown). Upon completion of these folding operations the former is again in alignment with a pocket 10 and the pusher 11 is then operated to push the packet into that pocket. At the same time a similarly formed packet formed on wheel 23 is pushed into a pocket 10, the pitch of the formers on the wheels 20, 23 being such that successive formers of each wheel align with every second pocket of the conveyer 7. The packets are then fed past the turrets 3-6 and when they reach a position downstream of turret 6 they are closed and sealed by any suitable known means.
Patent GB-483038-A (GB)
Title: Improvements in and relating to mechanism for stemming tobacco leaves
IPC: A24B5/02
Filed: 1936-10-05
Abstract: 483,038. Tobacco-stemming machines. INTERNATIONAL CIGAR MACHINERY CO. Oct. 5, 1936, No. 27029. Convention date, July 1. [Class 130] A machine for stemming tobacco leaves comprises web holding and stem holding devices arranged to pull the web and stem in different directions to tear them apart, and a roller, adjacent the tearing point, having a portion of smaller diameter across which the stem is drawn, disposed between portions of greater diameter which engage the web portions of the leaf at opposite sides of the stem to strip the web portions from the stem. The leaf webs L are held by suction on a perforated drum 14 rotating about a hollow support and are delivered upon a belt 18 after the stems S have been torn out by sets of grippers G on a rotating drum 16. Each set of grippers consist of stationary members 20 on the drum 16 and movable members 21 on bars 21a which are held in engagement with a stationary cam 24 by springs 26. The cam 24 closes the grippers when they are nearest the drum 14 and the grippers are opened just before they reach star wheels 28 which discharge the stripped stems. The web portions of the leaf are held. against the drum 14 by flanges 17b on a shaft 17 which is rotated in the opposite direction to the drum, and the stem is drawn across the parts 17a of the shaft between the flanges. During the stripping operation the flanges fit between and clean the surfaces of adjacent grippers. Specification 425,187 is referred to.
Patent GB-503760-A (GB)
Title: Improvements in and relating to fluorescing compositions
IPC: C09K11/06
Filed: 1937-10-06
Abstract: 503,760. Fluorescing compositions. BRITISH THOMSON-HOUSTON CO., Ltd. Oct. 6, 1937, No. 27087. Convention date, Oct. 8, 1936. [Class 39 (i)] [Also in Group IV)] A fluorescing composition which is suitable for making a light transforming surface, such as a screen or reflector comprises an alkali metal salt of Rhodamine B and a binder. An alcoholic solution of the potassium salt of Rhodamine B, diluted with a solution of cellulose acetate in a solvent such as acetone may be used to coat a screen or reflector, or solutions of Rhodamine B and of potassium hydroxide in a solvent may be mixed with a solution of cellulose acetate in acetone to obtain a suitable coating composition. A supporting member may also be coated first with a solution containing an alkali metal salt of Rhodamine B and a binder, and then with a solution of a binder in a solvent, the coatings being dried after each application. A product obtained by reacting an aldehyde with a hydrolysed polymerized vinyl ester may be used as a binder. To improve the brushing properties of the solutions, high boiling solvents may be added, such as ethylacetate, ethyleneglycolmonoethylether, or the acetate of the latter ether. Organic and inorganic binders may be used and supports for the composition may be made of metal, e.g. aluminium, nickel, chromium or steel, glass, porcelain, enamelled material, paper, cardboard, silk, rayon, linen, cotton or other textile. The use of the composition in metal vapour lamps, e.g. mercury vapour lamps is mentioned. The composition may be applied to a temporary support, dried and after removal used independently of any support as a light transforming or fluorescent screen, Lithium, sodium, rubidium and caesium salts of Rhodium B are specified. Specifications 16271 /11, [Class 95], and 477,192, [Group XX], are referred to.
Patent GB-810186-A (GB)
Title: Method of forming image display screens for cathode ray tubes
IPC: H01J9/227
Filed: 1957-08-28
Abstract: 810,186. Luminescent screens. SYLVANIA ELECTRIC PRODUCTS Inc. Aug. 28, 1957 [Aug. 28, 1956], No. 27153/57. Class 39(1). A method of forming an image display screen on the viewing panel of a cathode ray tube comprises the steps of coating, e.g. by spraying, the panel with a solution of a light-sensitizer, e.g. ammonium dichromate, and a polyvinyl alcohol having from 8-20 centipoise viscosity in a 4 per cent. by weight water solution depositing a layer upon said coating, preferably whilst still in a tacky condition, masking portions of the coating, exposing the unmasked portions to light, and subsequently removing the unexposed portion of the coating and of the layer by application of a solvent, e.g. de-ionised water, Specification 804,958 is referred to.
Patent GB-191476-A (GB)
Title: Improvements in offset printing machines
IPC: B41F11/00
Filed: 1921-10-13
Abstract: 191,476. Bell, C. E., and Connolly, Ltd., F. J. Oct. 13,1921. Rotary machines; offset machines.-A rotary machine for printing in colours by the lithographic offset method and also by direct or offset intaglio printing is constructed so as to produce superimposed offset impressions on one impression cylinder from two or more lithographic printing cylinders, and one or more.direct or offset impressions from intaglio cylinders. An impression cylinder i receives impressions from two or more offset cylinders g, h coacting with lithographic cylinders a, b, and a direct impression from an intaglio printing cylinder c. The printing cylinders may be arranged in any order.
Patent GB-173073-A (GB)
Title: Improvements in or relating to letter files and the like
IPC: B42F7/04
Filed: 1920-09-23
Abstract: 173,073. Garrett, F. Sept. 23, 1920. Clamping-devices; covers; fastenings. - In document files of the kind in which two hinged covers enclosing the documents are held together at their free corners by two elastic loops, each secured to a cover and slipped over the adjacent corner of the other cover when the file is closed, each loop is detachably secured to a cover by two slits forming two loop-engaging tongues, the line joining the slits extending diagonally across the corner of the cover. The two pairs of slits may both be formed in the cover, or one pair may be formed in each cover. Each slit forming a tongue D may extend from a perforation F in the cover to the edge of the cover as shown in Fig. 3, or to a second perforation B as shown in Fig. 2.
Patent GB-237474-A (GB)
Title: Improvements in and relating to net making machines
IPC: D04G1/00
Filed: 1924-11-13
Abstract: 237,474. Marks, E. C. R., (Dresdner Netzwerke, Ges.). Nov. 13, 1924. Drawings to Specification. Net-making machines. - The shuttles of netmaking machines are provided each with a number of spools arranged side-by-side, the threads from which are drawn off together.
Patent GB-620750-A (GB)
Title: Improvements in or relating to concrete floors or the like structures
IPC: B28B7/18
Filed: 1945-10-17
Abstract: 620,750. Moulds for concrete beams. CONCRETE PILING, Ltd., MALCOMSON, J. C., and WALSH, J. M. Oct. 17, 1945, No. 27283. [Class 87 (ii)] [Also in Group X] Beams for concrete floors &c. (see Group X), are moulded in apparatus containing a number of moulds each of which consists of a base 16, spaced from its fellows and supported on cross beams ; side walls 18 shaped to give the required profile; and end walls 19 which fit into slots in the side walls. The side walls for the whole assemblage of moulds are secured by double wedges 20'between an angle member 21 on a supporting cross beam and a spacer block 22. A hollow core, e.g. a galvanised iron tube 23, is located in each mould in circular holes in the end walls, and the cores are coupled by their handles .24, adjustable hooks 25 and a bar 27 to a winch 30. The moulds and cores and lower reinforcing rods in the mould space having been assembled, concrete preferably of a relatively dry mix is placed nearly to the top of the cores and the moulds are vibrated. A strip of strong paper may then be placed along the wres, the top reinforcing rods positioned by cross wires and the moulds then completely filled and vibrated. It is stated that the cores may then be immediately withdrawn. Where the beams are required to have solid ends, the core length within the mould is reduced and the core end closed by a plug supported by the end wall.
Patent GB-718344-A (GB)
Title: Blood plasma substitute
IPC: C08B37/02
Filed: 1952-10-30
Abstract: Dextran glycerol glucosides are made by heating dextran with glycerol (with or without an acid catalyst), when partial depolymerization and reaction of the terminal aldehyde groups occurs.  The glucosides are precipitated by addition of ethanol or acetone, and if desired fractions of varying molecular weight may be obtained by stepwise addition of the precipitant.  The products are useful as blood plasma substitutes.  Examples are given of the heating of dextran and glycerol to 150-220 DEG  C. alone and with phosphoric acid as catalyst.  The glucoside is precipitated with ethanol as different fractions.ALSO:Compositions suitable as blood plasma substitutes comprise solutions of dextran glycerol glucosides and sodium chloride isotonic with natural blood plasma.  An example is given of a solution containing 5.5 per cent of dextran glycerol glucoside of average molecular weight 65000 and 0.9 per cent of sodium chloride.
Patent GB-242443-A (GB)
Title: Improvements in shock absorbing supports for thermionic valves
IPC: H01R33/975
Filed: 1924-11-15
Abstract: 242,443. M.-L. Magneto Syndicate, Ltd., and Ramsay, F. R. F. Nov. 15, 1924. Vacuum tubes.-An antivibration valve-holder 21 is provided with a radial flange 23, or equivalent projections, gripped between sponge - rubber or like sleeves 11, 12, secured within a shell 24 between a flange 25 and blocks 31 on a baseplate 30. Terminals 27, connected or integral with the sockets 22 of the holder are connected by flexible conductors, preferably U-shaped wires 28, to valve pins 29 or other terminals on the baseplate. In a modification, the sleeves 11, 12 are replaced by a. single sleeve, which is drawn over the holder to embrace the flange.
Patent GB-1130785-A (GB)
Title: Reformer for catalytic processes
IPC: B01J6/00
Filed: 1966-06-20
Abstract: 1,130,785. Fluid heaters. FOSTER WHEELER CORP. June 20, 1966 [1 Oct., 1965], No. 27529/66. Heading F4B. [Also in Division C5] In a tubular reformer for the catalytic steam reforming of preferably gaseous hydrocarbons, the tubes are of uniform external diameter, but their internal diameters are less at the outlet (high temperature) end than at the inlet end. The tubes, which may be arranged in a single or double row, are each divided into three zones 46, 48, 50, each zone being of constant internal diameter, and each zone being co-extensive with a heating chamber 22, 24, 26 provided with burners 36, 38. The degree of wall thickening in successive zones is related to the stress in the walls.