baber/WOPTO huggingface dataset:
Patent GB-940450-A (GB)
Title: Improvements in sealing rings for reciprocating piston driving or operating machines
IPC: F16J9/06
Filed: 1961-01-03
Abstract: 940,450. Piston rings. P. MONGITORE. Jan. 3, 1961 [Jan. 16, 1960; April 16, 1960; Nov. 25, 1960], No. 256/61. Heading F2T. In a reciprocating machine including at least one cylinder and piston of non-circular crosssection, a number of sealing or scraper rings each comprising two or more flexible sections 200, 202, 203 in end to end relationship, Fig. 1, are located in peripheral grooves in the piston 209, one or more of the ring sections, e.g. 202, 203, being urged against the cylinder by resilient means floatingly mounted in a radial direction in the piston grooves. The section 200 is urged by its own elasticity against the cylinder. The sections 202, 203 consisting respectively of straight and curved portions with internal cuts 204 are pressed against the cylinder by arcuate leaf springs 205, the adjacent ends of which bear against each other or, as shown, bear on stationary and movable extensions 206, 207 respectively the extensions 207 being provided by rods 210 slidable in holes in the piston. In Fig. 7, piston ring sections 208, 211 are urged outwardly by a helical spring 213 which bears on a ring 212, Fig. 8, mounted with a clearance in the piston groove. The helical spring 213 may be replaced by a serpentine-shaped ring. In Fig. 19, curved or straight ring sections 202 are pressed outwards by beam-like articulated levers 221, 222 acted upon by helical springs 223 arranged in blind or through holes transversely of the pistons. The rings may be U- or T-shaped in cross-section or they may be provided with extensions 224, 225, 226, Fig. 21, extending inwardly of the piston groove which is formed with recesses.
Patent GB-558548-A (GB)
Title: Loop-takers for sewing machines
IPC: D05B57/14
Filed: 1943-01-07
Abstract: 558,548. Sewing-machines. FAIRWEATHER, W. C. (Singer Manufacturing Co.). Jan. 7, 1943, No. 305: [Class 112] In a rotary lock-stitch hook having the usual non- rotary thread-case holder, the bearing between the hook and the holder is a modified form of ball or roller bearing. The balls 6 are carried in spherical sockets in the wall of the thread-case holder 9 which acts as the spacing ring, and run in a race groove 5 on the inner surface of the rotary hook 1 and a race groove 7 in a floating ring 8. The balls are evenly spaced except as shown between the needle-loop detaining and confining shoulders 15, 16. To receive the balls, the wall of the thread case is divided in the plane of the ball centres and the parts are secured together by screws 13. Specifications 491,957 and 452,001 are referred to.
Patent GB-718793-A (GB)
Title: Improvements relating to slide valves for controlling the supply of pneumatic pressure to a cylinder incorporating a double acting piston
Inventor: LEMAN HERBERT VERLINDE
IPC: F15B13/04
Filed: 1953-01-06
Abstract: 718,793. Engine distributing valves. HUGHES, Ltd., G. H. Jan. 6, 1953, No. 351/53. Class 122(2) In an engine distributing valve in which the valve body is formed in three sections comprising a valve chamber section 1 provided with an air inlet port 10 and having an operating rod 16 slidable therein engaging a slide 11 co-operating with ports 3, 4, 5, 6 in an intermediate section 2, two of which ports 3, 4 register with passages 7, 8 in a third section 9 connected to the engine cylinder, the operating rod 16 is actuated by pneumatic means. Housings secured to each end of the valve chamber 1 contain diaphragms 24 which when flexed inwardly by the admission of pneumatic pressure through inlets 22 actuate the operating rod 16, a centrally placed button 25 on the diaphragm contacting the end of the rod. The inlets 22 are alternately opened to pressure and exhaust, the sides of the housings remote from the inlets 22 being vented to atmosphere through passages 26. Specification 664,903 is referred to.
Patent GB-156508-A (GB)
Title: A process of washing and subsequently treating artificial materials
IPC: D01D10/04
Filed: 1921-01-05
Abstract: 156,508. Kampf, A. April 19, 1919, [Convention date]. Void [Published under Sect. 91 of the Act]. Hank type.-In the process of washing and subsequently treating artificial materials such as silk, staple material, horse-hair, &c., the fibres are prevented from balling or felting together by supporting skeins of the material on travelling rollers o and allowing them to dip into successsive baths c, the rollers being rotated at such a speed that the washing liquid is carried by the skeins to the rollers and then flows back along the skeins. The bearings for the rollers are carried on an endless chain d, and the rollers are rotated by a rotating worm e, which is interrupted between successive baths c to allow the skeins to drip while being drawn over smooth partitions f between the baths. The liquid in the baths flows in a direction opposite to that of the skeins therethrough.
Patent GB-1382343-A (GB)
Title: Strap sealing tool
IPC: B29C65/06
Filed: 1972-01-05
Abstract: 1382343 Seaming mon-metallic sheet material FMC CORP 5 Jan 1972 [20 Jan 1971] 430/72 Heading B5K Overlapping portions 14a, 14b of a loop 14 of thermoplastic strapping tensioned about an article are friction welded and the tensioned loop is severed from a supply of strapping at the seal without leaving a tab or a free end of strap extending beyond the seal on the outside of the loop. A strapping tool comprises a tensioning mechanism in the form of a wheel 10 operated by a lever 12. During tensioning, a pivoted dog 16 holds one end of the strapping stationary. A sealing head 18 includes a strap engaging part 26 comprising a resilient pad or a metal having a spiked, serrated or roughened surface and which is secured to a base 22 of a cylindrical portion 24. The drive shaft 28 of a motor 30 has an eccentric sleeve 32 secured thereto and extends into the portion 24. A needle bearing 34 is provided between the portion 24 and the sleeve 32. A compression spring 28 acts between the motor 30 and a collar 36 loosely surrounding the portion 24 and provided with balls 40 resting on the base 22. A shifter yoke 44 is articulated to the collar 36 by pins 46, 48. Operation of a lever 52 is effective to hold the yoke 44 up to or lower it to release the collar 36 so that the spring 38 compresses the portions 14a, 14b between the part 26 and a stationary polyurethane pad 50. Alternatively, the pad 50 may be yieldingly mounted. The pad 50 is longer than the part 26 and a portion thereof underlies a saw-toothed blade 54 secured to the collar 36. In use, when the lever 52 is operated to lower the yoke 44 the portions 14a, 14b are compressed and the motor 30 is started to cause a point on the longitudinal centre line of the portion 14a to orbit about a point on the longitudinal centre line of the portion 14b to effect welding. Simultaneously, the blade 54 cuts through the portion 14a but not the portion 14b since there is no relative movement between the blade and the portion 14b. In an alternative embodiment (not shown), instead of the frictional heat being produced by an orbit movement, the portion 14a is longitudinally reciprocated relative to the portion 14b. In this case, the cutting blade 56, Fig. 4, is provided with teeth 58 extending at an angle such that a front comer 60 of one tooth overalps with the rear corner 62 of an adjacent tooth in a plane 64 perpendular to the blade.
Patent GB-1134628-A (GB)
Title: Transfer medium and method of printing using the medium
IPC: B41J31/00
Filed: 1966-01-05
Abstract: 1,134,628. Printing processes. INTERNATIONAL BUSINESS MACHINES CORP. 5 Jan., 1966 [1 April, 1965], No. 436/66. Heading B6C. [Also in Division D2] A transfer medium has a substrate bearing a surface layer comprising 80 parts by wt. of a colouring matter, 2 to 10 parts by wt. of a wax and the remainder a silicone resin. The colouring matter may be carbon black. The wax may be ouricoury carnauba, candellila or sugar cane wax. The substrate may be a polyethylene film 0À0005-0À006 inch thick. The surface layer may be 0À00025-0À0050 inch thick. The transfer medium is normally non-tacky but it becomes tacky and sticks to the.receiving sheet when subjected to the pressure of a typewriter die. The receiving sheet used with the transfer medium may be transparent or translucent, non-porous and non-fibrous, e.g. it can be made of polyethylene glycol terephthalate, polyethylene, polyamide or a rubber hydrochloride.
Patent GB-1351439-A (GB)
Title: Sanitary napkin
IPC: A61L9/01
Filed: 1973-01-04
Abstract: 1351439 Sanitary napkins; deodorants JEX CO Ltd 4 Jan 1973 [23 Oct 1972] 470/73 Headings A5E and A5R  A sanitary napkin comprises at least one layer of staple fibres containing, as a deodorant, a resinous condensation product of an aromatic amine with formaldehyde, this product being in porous powdered form and reacted with an acid to form a salt. Desirably, the product is a condensation product of mphenylenediamine or m-aminophenol, with or without phenol or resorcinol, and formaldehyde, and is in the form of an acid-salt, preferably a tartrate. The product is an amphoteric ion-exchange resin having a structure based upon the following grouping: The staple fibres are preferably pulp-fibre wherein the fibre is about 200 parts by weight to one part of deodorant and 10 parts by weight of diatomaceous earth, which increases the adhesion between the fibres and the deodorant. In a typical embodiment, the napkin comprises a wrapper 10, of non-woven fabric, enclosing a sandwich consisting of two sheets 11 of water-adsorbing paper, a sheet of deodorant-impregnated staple fibres 15, two more sheets 11 of water-adsorbing paper, another sheet 15 of fibres 15 impregnated with deodorant, two sheets of' water-repellant paper 12 and a sheet of waterproof paper 13, the sides of the sandwich being further enclosed by Sheets of wiater-repellaht paper 12. The ends of the wrapper are sealed, and the side of the wrapper away from the user's body includes a thread 14. One of the fibre-layers may contain a conventional deodorant, e.g. activated carbon, and, additionally, the resin-deodorant may be present, loosely, in the paper-layers 11 between the two fibre-layers.
Patent GB-574898-A (GB)
Title: Improvements in or relating to reinforced rubber articles
IPC: C08J5/06
Filed: 1943-01-11
Abstract: An active-hydrogen-containing fibrous reinforcement of filaments, yarns, cords, &c. of cotton, wool, or substituted cellulose esters or ethers having some unsubstituted hydroxyl groups, is treated with an active-hydrogen-containing rubber and a polyisocyanate, a polyisothiocyanate, or a mixed iso-isothiocyanate of the formula OCN-R-NCS, where R is a divalent organic radical, e.g. in a common solvent, and united with rubber &c. as by vulcanization, for making tyres, belting, &c.  Specifications 573,932, 574,901, [Group V], and 574,903 are referred to.ALSO:In the production of reinforced tyres, belting, or tennis shoes, &c., an active-hydrogen-containing natural or synthetic fibrous reinforcement, i.e. one containing groups such as: -OH, -NH2, -COOH, or -SH, is treated with an active-hydrogen-containing rubber, and a polyisocyanate, a polyisothiocyanate, or a mixed isocyanate-isothiocyanate compound of the formula OCN-R-NCS, where R is a divalent organic radical and united to rubber or neoprene &c. as by vulcanization.  As fibrous reinforcement may be used filaments, yarns, cords, or fabrics, &c., e.g. of cotton, wool, or substituted cellulose esters or ethers having some unsubstituted hydroxyl groups.  As active-hydrogen-containing rubber may be used trioxane-modified rubber or neoprene, paraformaldehyde treated cr<\>zepe rubber, e.g. prepared with the aid of zinc chloride, acetic acid, ammonium chloride and hydroxide, or hydroxylated rubber, e.g. prepared with an aliphatic percarboxylic acid; curing agents may also be present.  The cyanate may be an alkylene-, alkylidine-, or cycloalkylene-diisocyanate or diisothiocyanate, e.g. such cyanates of ethylene, methylene, phenylene, diphenylene, propylene, or butylene. The textile is treated with the modified rubber and with the cyanate, e.g. in a common solvent, e.g. toluene, or successively. Specifications 573,932, 574,901 and 574,903 are referred to.
Patent GB-763888-A (GB)
Title: Improvements in or relating to washing plants for washing and rinsing textile articles
IPC: D06F21/04
Filed: 1955-01-07
Abstract: 763,888. Washing-machines. SULZDMANN, E. Jan. 7, 1955 [Sept. 10, 1954], No. 500/55. Class 138 (2). The waste liquor from a double drum washing machine I is discharged from the inner drum 14 through a central discharge 24 and supplied to the outer drum 25 of a second machine II arranged axially in line with the first. The two machines may have a common outer drum 10, 25 divided by a partition 29 into two compartments. The surface of the inner drum 14 of the machine I is perforated over a small area in the proximity of ribs 18. The drum 14 has a supporting shaft 20, a partition 21, and scoops 22 with apertured portions 23, liquid being fed thereby to a discharge funnel 24 as the drum rotates. The machine II has a perforated inner drum 27 and an overflow 28 which may be regulable. In Fig. 3 (not shown) the second machine has an open-ended inner drum supported in cantilever fashion by the central shaft of the first machine.
Patent GB-514223-A (GB)
Title: Improvements in or relating to x-ray appliances
Inventor: RAAB LEONHARD
IPC: A61B6/00
Filed: 1939-01-06
Abstract: 514,223. X-ray appliances. SIEMENSREINIGER-WERKE AKT.-GES. Jan. 6, 1939, No. 511. Convention date, March 21, 1938. [Class 98 (i)] In an appliance for examination and treatment by X-rays, having a tiltable table for supporting the patient, spring tension is used to.compensate for the turning moment during the tilting of the table, and may also be used as a counterweight during the vertical displacement of the auxiliary appliances. As shown, the table a is pivoted at s to a supporting framework, and the auxiliary apparatus, e.g., X-ray tube b, and plate holder c, .are mounted on a carriage slidable, therealong. The compensating tension spring d is connected by a member r to a template g rotatable with a lever h on a pivot e on the framework. The lever h is connected to the point k on the table a by a chain i passing around a pulley p; and by a link o to a point n on the carriage of the auxiliary apparatus. When either the auxiliary apparatus is moved vertically downwards or the table a is tilted anti - clockwise into the position A, the lever h is rotated into the position H. tightening the'member r, so that the tension of the spring d adjusts itself according to the position of the parts of the apparatus. When the table reaches the position A the rod o is automatically disconnected from the carriage at the joint n.
Patent GB-412989-A (GB)
Title: Improvements in and relating to the coating of magnesium and magnesium alloys and articles made therefrom with metals and alloys
IPC: C23C24/04
Filed: 1933-01-06
Abstract: Magnesium, magnesium alloys, or articles made therefrom are coated with metals or alloys be treating with the coating metal in a pasty or semi-fluid condition in the presence of rubbing or abrading elements.  The coating metal is preferably a zinc-cadmium alloy but coating with cadmium or an alloy of tin and lead is also referred to. Magnesium articles may be coated by placing them with a zinccadmium alloy and with some galvanized iron turnings as abrading elements in an inclined rotary drum provided with internal baffles, the drum being then heated to about 290 DEG  C. and rotated for about three minutes or longer.  The coated articles may then be heated to about 320 DEG  C. to produce a more uniform coating.  To coat a flat surface, it is preferably heated to a temperature just above the melting point of the zinc-cadmium alloy and then rubbed with an iron wire brush or an iron tool which is dipped at intervals into the molten alloy.  The coating alloy preferably contains 1 part by weight of zinc to 4 parts of cadmium.  The coated article may then be heated in hydrogen for about 1 hour at 450-550 DEG  C., the hydrogen having been dried by passing it over calcium chloride and freed from traces of oxygen by passing it over heated magnesium turnings.  Further coatings of the following alloys may then be applied in succession: -(1) zinc 17 parts by weight, cadmium 134 parts, magnesium 10 parts; (2) zinc 17 parts, cadmium 134 parts, magnesium 5 parts; (3) zinc 17 parts, cadmium 134 parts.  A flat surface may be given to the coating by pressing the coated article between heated graphited steel surfaces.  The coating of zinc-cadmium alloy, with or without the hydrogen heat-treatment, forms a suitable base for further coatings of other metals by electrodeposition, spraying, sherardizing, &c. The process may be used in the manufacture of parts for use in alkaline storage batteries or in aircraft. Specification 402,752 is referred to.
Patent GB-166284-A (GB)
Title: Improvements in internal combustion engines
IPC: F01L1/04
Filed: 1920-01-07
Abstract: 166,284. Beauchamp, A. W., and Davidson, E. C. Jan. 7, 1920. Valve-gear; valves.-Relates to engines of the type in which valves in the cylinder head are actuated by a face-cam situated over the ends of the valves. According to the invention, the valve-stems are provided with hollow guide-pistons D enclosing the springs and sliding in guides in a detachable cylinder head. The cam may comprise pairs of cam-surfaces E on spur-wheels E' rotated at one-fourth the speed of the crankshaft. Cylinders and valve chests; pipes and passages for.-The cylinder head B for a pair of cylinders is formed with inlet and exhaust passages K, K<1>, separated by a hot wall L<2> and with inlet and exhaust openings which register with openings in flanges M<1>, M<2> on opposite sides of the cylinder casting. The inlet and exhaust pipes are connected to these flanges, and the cylinder head can be removed without disturbing the pipes.
Patent GB-635994-A (GB)
Title: Improvements in the manufacture of siloxane resins
IPC: C08G77/00
Filed: 1947-01-07
Abstract: A siloxane resin, essentially all the siloxane units of which have the structure CH3SiO1,5, C6H5SiO1,5, and (CH3)3SiO0,5, of which between 1 and 25 mol. per cent are trimethyl siloxane units and the monomethyl and monophenyl siloxane units are present to the extent of at least 2 mol. per cent, is prepared by hydrolysing a mixture of a mono-methyl silane, a monophenyl silane and a trimethyl silane in which the remaining valencies of the silanes are satisfied by readily hydrolysable atoms or radicals (e.g. halogen atoms or alkoxy, aroxy, or alkaroxy radicals) and co-condensing the hydrolysed silanes.  Gel formation is prevented when hydrolysing mixtures containing monomethyl silicon trichloride by adding alcohol to the hydrolysis mixture and in all cases a catalyst such as hydrochloric or oxalic acid is preferably used.  Examples describe: (1) the hydrolysis of a mixture of ethoxy trimethyl silane, and phenyl- and methyl-silicon tri-chlorides by adding it to a mixture of water, toluene, and isopropyl alcohol.  The product, with triethanolamine as curing catalyst is used in forming laminated glass fibre or asbestos boards, and in solution in carbon tetrachloride for waterproofing asbestos; (2) the hydrolysis of mixtures of methyl-, dimethyl, and phenyl-, ethoxy silicones in five different proportions, by addition to a mixture of aqueous oxalic acid, and denatured alcohol, at 30 DEG  C., followed by heating at 60 DEG  C. and then the addition of toluene; (3) a process as in (2), using three other ratios of reactants, and with the addition of HC1 during the heating at 60 DEG  C.  The products of examples 2 and 3 are mixed with asbestos and calcium stearate and moulded under heat and pressure followed by heat curing. If an ethanolamine catalyst is used, the mix may be moulded at room temperature, followed by curing in an oven.
Patent GB-323372-A (GB)
Title: Improvements in and relating to optical projection apparatus
IPC: G03B23/12
Filed: 1929-01-07
Abstract: 323,372. Photomaton Parent Corporation, Ltd., and SippÚ, S. V. Jan. 7, 1929. Optical-projection apparatus.-Combined apparatus for projecting and viewing an enlarged image of a photograph or 0ther picture comprises a casing 1, Fig. 2, adjustable means 2 for supporting the picture, one or more lamps 5 for illuminating the picture, an adjustable projecting lens 4, a screw 7 and a viewing aperture 3. The picture holding device 2, is mounted on the outside of the casing 1 and consists of a box 13, Fig. 3, with slots 15, 14 by which the picture strip enters and emerges, a guide plate 18 by which it may be clamped in any required position by a screw 21, and a resilient roller 16 by which the position of the strip is adjusted. A light-tight casing 6, with a cover 6<a> contains the lamps and carries the lens. Two holding devices 2 may be mounted on the casing for the purpose of comparing two pictures projected simultaneously.
Patent GB-805501-A (GB)
Title: Improvements in or relating to the production of niobium and tantalum compounds
Inventor: BLUNDELL REGINALD WALTER
IPC: C01G33/00
Filed: 1956-01-07
Abstract: Niobium and tantalum values are recovered in the form of a solution of potassium niobate and tantalate from iron containing source materials by heating, preferably to about 120 DEG  C., with an aqueous solution of potassium hydroxide, preferably containing at least 50 per cent KOH by weight, under reducing conditions such that the formation of ferric hydroxide is substantially prevented, preferably by heating in the presence of metallic iron which does not introduce further impurities.  Subsequently to said heating step, precautions are taken to avoid formation of ferric hydroxide while the hot alkaline potassium niobate and tantalate solution is in contact with the insoluble matter.  The method is particularly applicable to the treatment of ferrotantalum and ferroniobium, in which cases it is only necessary to add a little extra iron towards the end of the reaction.  The solution of potassium tantalate and niobate is then separated from the insoluble residue consisting chiefly of Fe3O4.  The solution may now either be treated with hydrogen fluoride, to convert the niobate and tantalate to the complex fluorides K2NbOF5H2O and K2TaF7, which may readily be separated by utilizing their differing solubilities, or alternatively the solution may be concentrated to obtain a solid mixture of potassium niobate and tantalate, which is then converted to the complex fluorides and separated in the usual manner.
Patent GB-639286-A (GB)
Title: Improvements in or relating to harvesting machines
IPC: A01D33/06
Filed: 1948-01-08
Abstract: 639,286. Harvesting root crops. SMITH, T. S. Jan. 8, 1948, No. 632. [Class 6 (iii)] In a root-crop harvester having a share 1 feeding an endless conveyer 9, the share has side cheeks 2 co-operating with rotary haulmcutting discs 6 which form the end plates of the lower roller 11 of the conveyer. The share is pivoted at 4 on the side frames 5 of the machine and is spring-loaded by springs 12. Excessive rearward movement of the share can be used to stop the forward drive of the machine. The cheeks 2 have forwardly-projecting points 2 and additional teeth 8 project from the centre of the share. The discs 6 may be serrated. Specification 633,573 is referred to.