baber/WOPTO huggingface dataset:
Patent GB-858754-A (GB)
Title: Improvements in and relating to photographic cameras
IPC: G03B9/07
Filed: 1957-07-01
Abstract: 858,754. Reflex photographic cameras. VOIGTLANDER A. G. July 1, 1957 [July 7, 1956], No. 20711/57. Class 98(1) A single lens reflex camera with one or more exchangeable objectives has a stop pre-selecting device incorporated in the camera body and connected with the diaphragm carried in the exchange objective when mounted on the camera by linkage force-transmitting members. As shown, a camera body 1 has a tubular fitting 3 on which is rotatably held a guide ring 4 having a plurality of bayonet lugs 5 which engage behind corresponding counter lugs 6 of an exchangeable objective mount 7 to releasably attach the mount to the camera body. The iris diaphragm built in the mount 7 has blades 9 each pivoted at one end to a fixed ring 10 and at the other end to a blade adjusting ring 11 to which is attached a spring 12 so as to urge the diaphragm into the fully open position. An inclined part 13 of the ring 11 bears against a diaphragm adjusting pin 14 the other end of which bears against a second rod 15 mounted in the camera body 1 when the mount 7 is attached to the camera. The shutter time adjusting ring 26 and stop pre-selecting ring 25 are releasably coupled by a pin 30 in the latter engaging a slot 29 in the former. They are decoupled by urging the ring 26 axially downward against the spring leaf 28. In use, the ring 25 is set to the desired stop number which brings the inclined cam surface 24 attached thereto to a certain position with respect to the end 23 of a lever 18. When the shutter release button 22 is depressed, the arm 23 of the lever 18 engages the cam surface 24 whilst the other end 17 urges the rod 15 and hence the rod 14 axially upward to adjust the aperture to the required value by rotating the ring 11. The button 22 then operates the shutter by means not shown. Co-operating means are provided so that an exchangeable mount may not be attached when the indicating ring is set for an aperture greater than the maximum possible for the mount.
Patent GB-797573-A (GB)
Title: Aluminate glass
IPC: C03C3/062
Filed: 1956-07-04
Abstract: 797,573. Glass compositions. ZEISSSTIFTUNG, C., [trading as JENAER GLASWERK SCHOTT & GEN.]. July 4, 1956 [July 5, 1955], No. 20722/56. Drawings to Specification. Class 56. Glass for optical purposes contains at least 45 per cent of aluminium oxide, 25-45 per cent of calcium oxide and 1-17 per cent of alkali, the calcium oxide being replaceable wholly or in part by the oxides of strontium, barium, magnesium or a mixture of barium and strontium. The balance is formed from the following, in weight per cent, SiO 2  or GeOz, 1-15 ; MgO, 0-5; Sr+BaO, 0-12; ZnO, 0-4; Bi 2 O 3 , LazOs, Ta 2 O 5  or ZrO 2 , 0-5. LiO 2  is preferably used up to 7 per cent. Up to 3 per cent of As 2 O 3  may be added. A number of specific examples are given.
Patent GB-1130354-A (GB)
Title: Fixation of dyestuffs
Inventor: EVANS RAYMOND VICTOR
IPC: D06P1/92
Filed: 1966-05-11
Abstract: 1,130,354. Fixation process. SINGER-COBBLE Ltd. 10 May, 1967 [11 May, 1966], No. 20778/66. Heading D1B. A method of dyestuff fixation comprises the steps of passing a yarn or material to which a dyestuff has been applied through oil at elevated temperature thereby partially to effect dyestuff fixation and subsequently applying a solvent treatment at elevated temperature to remove the oil and to increase the dyestuff fixation. Subsequent removal of solvent by a steam flash off process further increases dyestuff fixation. In an example dye impregnated EVLAN (Registered Trade Mark) and nylon yarns are treated at 140‹C for 3 seconds in liquid paraffin, then with a solvent "Perklore" at 120‹C for 3 seconds and finally given a steam treatment for 3 seconds.
Patent GB-577809-A (GB)
Title: Improvements relating to the filling of cylinders with compressed gas
IPC: F17C5/06
Filed: 1943-12-13
Abstract: 577,809. Revaporizing and storing liquefied gases. NEWITT, D. M., and BURGOYNE, J. H. Dec. 13, 1943, No. 20843. Drawings to Specification. [Class 8 (ii)] Cylinders are filled with compressed gas from a body of liquefied gas in a closed vessel, the temperature of which is allowed to rise until liquid and vapour cannot co-exist in the vessel. The amount of liquid originally in the vessel may be such as to make the pressure at this temperature a maximum. Specifications 450,273 and 457,472 are referred to.
Patent GB-1066397-A (GB)
Title: Improvements in or relating to chemical reactions
IPC: C07C67/00
Filed: 1965-05-18
Abstract: In a method for the continuous reaction of at least two fluid reagents, at least one of which is in the gaseous phase and at least one of which is in the liquid phase, at least one of the reaction products being liquid, the liquid reagent entering at 14 flows downwardly over the vertical inner surface of cylinder 2, the temperature of which is controlled by cooling fluids flowing in the space(s) between cylinders 1 and 2, and comes into contact meanwhile with the gaseous reagent which enters cylinder 3 by pipe 8, leaves cylinder 3 by slots 9 and flows downwardly in a helical path into which it is directed by diaphragm 7.  A cooling fluid flows in the lower part of cylinder 3.  Liquid reaction products leave at 15 and gaseous reaction products at 16.  The thickness of the liquid film may be controlled by adjusting the distance between the lower edge of frustoconical device 17 and surface 12, or by varying the height of the free surface of liquid reagent above the lower edge of device 17. Cylinder 3 may be made to rotate.  There is reference to recycling the reagent gas.
Patent GB-859788-A (GB)
Title: Xerographic fixing apparatus
IPC: G03G15/20
Filed: 1958-06-30
Abstract: 859,788. Fixing xerographic powder images. KOLB, O. K. (Haloid Co). June 30, 1958, No. 20933/58. Class 98(2) Xerographic powder images are fixed to the surface of a supporting sheet by directing solvent vapour on to the surface of the sheet as it enters the fixing chamber and vaporizing the solvent condensed on to the sheet before it leaves the chamber, the re-vaporized solvent being conducted from the sheet exit region of the chamber to the sheet entry region. Typically a web 210 bearing xerographic powder images 211 is drawn through the apparatus by motor-driven mangle rollers 213, solvent vapour at 221 condensing on the web to fix the powder and then being evaporated off by passage of the web between heaters 223, 224. The re-vaporized solvent is then returned to the zone 221 either directly via the upper portion 228 of the fixing chamber or via a conduit 229 which is cooled by fan 233 to deposit excess solvent at 218 in the solvent vapour generating chamber 216 supplied from bird fountain 219 and lined with wicking 217 whereby the circulating air is prevented from becoming over-charged with solvent vapour. Moisture evaporated from the web which may be of paper or plastic is condensed on the walls of the chamber where it is collected in gutters 234 and led by pipes 235 to a sump 239. Solvent which similarly condenses on shut down of the machine forms a heavy layer at the bottom of the sump and may be separated off through tap 240. To avoid loss of solvent vapour, a flexible heat-resistant flap seal 227 may be provided at the exit end while a pivoted door 214 seals the entry until it is raised by electromagnet 215 on energising the motor driving rollers 213. If desired the heaters 223, 224 may have a stand-by current passed through them so that the time is reduced for which it is necessary to hold flap 227 raised on starting up so as to avoid smearing the solvent-wet images. In modifications (Figs. 1 and 5, not shown) the solvent is supplied as a drip feed to a tray above the heaters which in this case may be steam coils or the solvent is vaporized by drawing air over a bath of solvent by means of a fan. Two sets of xerographic printing and fixing machines may be arranged in series so as to make prints on both sides of the web.
Patent GB-238896-A (GB)
Title: Improvements in devices for cutting-out elliptical glass plates
IPC: C03B33/04
Filed: 1925-08-22
Abstract: 238,896. Noda, K. Aug. 23, 1924, [Convention date]. Cutting glass. - A device for cutting glass plates to elliptical form has means for varying the angle of the cutting edge of the tool. The tool 15 is adjustably mounted on a graduated arm 13 secured to a shaft 6, rotated from a handle 17 and held in a sleeve 3 guided for movement along parallel rods 4. An adjustable eccentric 7 secured to the shaft 6 engages sides 5, 5 of a fixed framing to reciprociate laterally the shaft 6. For cutting an ellipse the radial distance of the tool from the shaft 6 is equal to one half of the minor axis, and the eccentricity of the eccentric 7 equal to one half of the difference between the major and the minor axes. The angle of the tool is regulated by an arm 27 or the tool-holder connected by an adjustable rod 26 to a crank-pin adjustable on a bar 22 rotated by a gear 20 meshing with a gear 21 on the sleeve 3.
Patent GB-123963-A (GB)
Title: Improvements in Marking-out Reels or Spools as used by Boiler Makers, Sheet Metal Workers and the like.
Inventor: CAMPBELL WILLIAM
IPC: B25H7/00
Filed: 1918-12-17
Abstract: 123,963. Campbell, W. Dec. 17, 1918. Line-reels.-A marking-out linereel is constructed in one piece of flexible and resilient material such as rubber. The reel is constructed of the shape shown and is provided with bosses 3 having recesses 4, in which engage the finger and thumb of the operative.
Patent GB-766706-A (GB)
Title: Improvements in or relating to sulfates of hydroxy ethers
IPC: C07C305/10
Filed: 1954-07-20
Abstract: The invention comprises alkali metal, ammonium and ethanolamine salts of mixtures of compounds conforming to the general formula RO(C2H4O)nSO3H wherein R represents the tridecyl radical of the mixture of alcohols obtained by the oxo process from a C12 polymer of a C3-4 olefine and n is from 3 to 5.  The salts may be prepared by converting the tridecyl alcohols into mono-ethers of tri-, tetra- and/or pentaethylene glycol by reaction with 3-5 mols. of ethylene oxide preferably under pressure and in the presence of a condensation catalyst, sulphating the resulting ether-alcohols with a sulphating agent, e.g. sulphuric acid, sulphur trioxide, oleum or chlorsulphonic acid and neutralizing the acid sulphate with an appropriate base e.g. aqueous ammonia or alkali metal hydroxide or carbonate or an ethanolamine.  Sulphamic acid is also a specified sulphating agent. The products are detergents effective in sea and hard waters.  In examples: (1) the ether-alcohols obtained by reacting 3 mols. of ethylene oxide with the tridecyl oxo alcohols derived from tetrapropylene are sulphated with 100 per cent sulphuric acid and the product neutralized with caustic soda; (2) the same ether-alcohols are reacted with sulphamic acid at 135 DEG  C., the product neutralized with excess aqueous caustic soda and the solution adjusted to pH 8.8 with HCl yielding a detergent product comprising the ammonium salt of the sulphated ether-alcohol; (3) the same ether-alcohols are cycled through a high-speed mixer and cooler and a mixture of air and SO3 vapour is injected into the stream for an hour at 32-35 DEG  C. whereupon the product is neutralized with caustic soda.  The sodium salts of the sulphuric acid esters of ether alcohols derived from the tridecyl alcohol and 3.5 and 4 mols. of ethylene oxide respectively are referred to.
Patent GB-614485-A (GB)
Title: An arrangement for altering a centrifuge from flange-motor drive to belt drive
IPC: B04B9/08
Filed: 1946-07-15
Abstract: 614,485. Centrifugal separators. AKTIEBOLAGET SEPARATOR. July 15, 1946, No. 21140. Convention date, Aug. 15, 1945. [Class 23] Driving means for a separator may be converted from a motor drive into a belt drive by the use of a shield 18 which is secured to the frame 1 of the separator. The normal transmission for the separator includes a friction pulley 5 against which friction blocks 6 slide during the starting- up period. A belt pulley 15 is carried by a shaft 16 supported partly by a bearing 17 in the shield 18, and partly by a bearing 19 on the separator driving shaft 2. The pulley 15 may be replaced by fast and loose pulleys. When using a direct-coupled electric motor drive, the shield is removed and the motor secured to the flange of the frame 1. An elastic coupling is used in the drive. A brake 20 is provided.
Patent GB-227762-A (GB)
Title: Moistener for envelopes, postage stamps and other gummed surfaces
IPC: B43M11/08
Filed: 1924-09-08
Abstract: 227,762. Binder, T. W. Sept. 8, 1924. Reservoir pads. - A moistener for envelopes, stamps &c. comprises a tubular water reservoir a, Fig. 2, and a sponge b which is tied in the middle by a rubber ring d tightly fitting the front end of the reservoir. The device is fitted with a piston c, preferably of rubber. In a modification, Fig. 3, for carrying like a fountain pen, the piston c is rotatably mounted in a cap e which screws on to the rear end of the reservoir. A nipple i is provided for limiting the withdrawal of the piston. A removable cap f for protecting the projecting part of the sponge when the moistener is not in use, and a ring g to secure the moistener, shown in Fig. 2, in position on a plane surface, are provided.
Patent GB-245036-A (GB)
Title: Improvements in and relating to head rests
IPC: A45D44/10
Filed: 1925-08-24
Abstract: 245,036. Bailey, P. P., and Ford, H. T. Aug. 24, 1925. Rests, head.-A device for supporting the head over a wash-basin 11 comprises a U-shaped frame 15 having side-members 16, 17, to which are secured by screws 18 the ends 20 of a strap or other flexible member 23 which actually supports the forehead, Fig. 1. The frame 15 is secured to a slot 26 in the end of a tubular member 25, while a supporting member 30, adjustable in the tube 25 is provided with a forked end 33, 34 to coact with the edge of the basin outlet. The device may be hung from a tap 13 or the like by a wire frame 38, Fig. 2.
Patent GB-532389-A (GB)
Title: Improvements in and relating to stationery feeding mechanism for tabulating and other machines
Filed: 1939-07-21
Abstract: 532,389. Typewriters &c. LAMSON PARAGON SUPPLY CO., Ltd., and GARWOOD, V. W. July 21, 1939, No. 21221. [Class 100 (iv)] Web-feeding arrangements; ink - ribbon mechanism.-In tabulating and like machines employing a pack 10 of continuous cross - perforated stationery interleaved with duplicating- ribbons, a curved guide or a roller 28 is provided for directing the stationery vertically on leaving the platen 15, and then horizontally to a stationery-feeding device comprising endless members 7 provided with pins. The guide holds the stationery in the same plane as the duplicating-ribbons and thereby prevents mutual interference. The duplicating-ribbons are prevented from moving upwards by resilient guides 34. In the construction shown, the stationeryfeeding-device is mounted in end plates 12 which are detachably mounted on studs 16 on the tabulating-machine and engage latches 18. Each ribbon-guide 34 is formed on a resilient arm 33 and is adjustably mounted by means of a slotted bracket 35 on rods 29 connecting the plates 12. The bracket is secured by means of a plate 36 on a spring-urged spindle 37 provided with a knob. Specification 511,377 is referred to.
Patent GB-267403-A (GB)
Title: Improvements in or relating to ice cream cutting and coating machines
IPC: A23G9/24
Filed: 1926-08-28
Abstract: 267,403. Jackson, L. Mellersh-, (Eskimo Pie Corporation). Aug. 28, 1926. Stream-cutting machines; delivery.-In an icecream cutting and coating machine, portions of ice-cream are automatically cut off from a block by means of a reciprocating severing knife and delivered on to a rotating carrier. A motor 8 drives a belt 9 and a pulley 10 on the outer end of a main driving shaft 11 having on its inner end a worm 12 meshing with a worm gear 13 on a transverse shaft 14 which is provided on its right-hand end with a crank 17 for operating a reciprocating severing-knife 85. The crank 17 is connected by a rod 18 to a short drop-arm 71 on the extreme rear end of a rod 70 carrying the knife 85 which is thereby moved to-and-fro to cut off cores of ice-cream from a slab 108, the bottom of which is engaged by a carrier-frame 74 and rests on a, shelf 86 which is controlled in a vertical direction by a thumb-nut 91 to vary the thickness of the cores. During the outward movement of the knife, and after it has cut through the slab, the knife engages a projection 80 on the carrier-frame 74 and pushes it outwardly along a rod 73 so as to force the core on to the needles 64. During the return movement of the knife the slab is first supported by means of a spring 106 and a friction plate 100, and is allowed to fall on to the shelf 86 after the plate 100 has been withdrawn by means of the rear edge of the knife 85 engaging a depending part 102 of a slide 101 connected to.the plate. At the same time the drop arm 71 engages the rod 73 and returns the carrier-frame 74 to its initial position, the carrier-frame being held elastically in its extreme positions by means of a compression spring 81. The slab 108 may be prevented from sticking to the rear wall 92 of the feed hopper by providing this wall with slightly raised projections 99 which may have small air-holes formed between them. A flat spring 96 may be provided to accommodate different widths of slabs which may be pressed down by a superposed weight.
Patent GB-759252-A (GB)
Title: An improved method of producing a chain stud-link
IPC: F16G13/14
Filed: 1951-09-10
Abstract: 759,252. Welding chains by pressure. RIEGER, O., RIEGER, E., RIEGER, E., and RIEGER, W., [trading as RUD KETTENFABRIK RIEGER & DIETZ]. Sept. 10, 1951 [Sept. 8, 1950], No. 21276/51. Class 83 (4). In producing a chain stud link 5 the stud 7 is electric resistance welded at both ends 8, 9 thereof into the link, a single piece closed at 6 by welding on one of its longer sides, so that the stud is in line with the weld at 6 to form therewith a substantially T-shaped seam.
Patent GB-1175465-A (GB)
Title: Hydrodynamic Fluid Bearing
Inventor: BOURGAIN LOUIS
IPC: F16C33/10
Filed: 1968-05-06
Abstract: 1,175,465. Bearings. COMMISSARIAT A L'ENERGIE ATOMIQUE. 6 May, 1968 [17 May, 1967], No. 21276/68. Heading F2A. A hydrodynamic fluid bearing comprises a resiliently-mounted bush 1 with a smooth bore enclosing a shaft 3, the outer surface of which contains troughs 16 equispaced about its axis. The depth of each trough may decrease constantly around the periphery of the shaft (Fig. 2, not shown). The resilient mounting may be as described in Specification 1,111,362. The bush may have a P.T.F.E. lining 2.
Patent GB-462165-A (GB)
Title: Manufacture of polymerisation products
IPC: C08F218/04
Filed: 1935-07-26
Abstract: Polymerization products which yield solutions of high viscosity are manufactured by adding to the monomeric compound to be polymerized, other than an inorganic ester of vinyl alcohol, a catalyst comprising a peroxide of a fatty acid containing at least 4 carbon atoms in the molecule, e.g. a peroxide of a straight or branched chain saturated aliphatic acid such as butyric or lauric acid, a peroxide of an unsaturated aliphatic acid such as crotonic or oleic acid, a peroxide of a halogenated or hydroxy-acid such as b -chlorobutyric or b -hydroxybutyric acid, or a mixed peroxide such as those from stearic and succinic acids, oleic and benzoic acids, lauric and adipic acids or hexylic and o -chloropropionic acids.  The polymerization is advantageously carried out at about the boiling point of the vinyl compound, and may be effected in the presence of a solvent or diluent.  Examples describe the polymerization of: (1) vinyl acetate in the presence of oleic acid peroxide; (2) vinyl butyrate in the presence of benzoyl stearyl peroxide; (3) vinyl acetate in the presence of stearic acid peroxide and an aldehyde.  Samples have been furnished under Sect. 2 (5) of: (I) an interpolymerization product of vinyl acetate and maleic acid dimethyl ester, prepared by the action of oleic acid peroxide; (II) a polymerization product of vinyl acetate, prepared by the action of dioleyl peroxide in the presence of dibutyl phthalate and cyclohexyl acetate; (III) as in (II) except that the dibutyl phthalate is replaced by dimethyl phthalate. Peroxides of the kind defined above are obtainable by reacting the appropriate acid chloride or mixture of acid chlorides with sodium peroxide in aqueous solution or with hydrogen peroxide in caustic soda solution.  The Specification as open to inspection under Sect. 91 refers also to the use, as catalysts, of the peroxides of caproic and caprylic acids and of the peroxides from the mono-esters of aliphatic dicarboxylic acids, e.g. from the monomethyl or -ethyl esters of adipic acid, and to the polymerization of vinyl formate, propionate, stearate and benzoate, and of mixtures of organic vinyl esters with other unsaturated organic compounds.  Additional examples describe the polymerization of: (1) a mixture of vinyl acetate and maleic acid dimethyl ester as in Sample (I) but using a larger quantity of catalyst; (2) vinyl formate by the action of oleic acid peroxide in the presence of acetone and methylene chloride; (3) vinyl formate by the action of dicrotonyl peroxide. This subject-matter does not appear in the Specification as accepted.
Patent GB-280308-A (GB)
Title: Improvements in electric combs for the hair
IPC: A61N1/26
Filed: 1926-08-30
Abstract: 280,308. Wildey, E. M., Aug. 30, 1926. Battery lamps combined with hair combs.-An electric hair comb, consisting of two insulated members carrying parallel rows of teeth, adapted to be connected directly in circuit with a removable battery attached to the comb, may be combined with a lamp, which can be attached to the toothed members by a clip. The lamp 26 may be attached to the toothed members of the comb, (not shown), by means of conducting spring fingers 27, 28.
Patent GB-295320-A (GB)
Title: A casing for roll film cameras
IPC: G03B19/04
Filed: 1928-07-23
Abstract: 295,320. I. G. Farbenindustrie Akt.- Ges. Aug. 9, 1927, [Convention date]. Cameras, roll-film, cases for.-A camera having a casing formed of two parts 1, 3 that can be opened out from each other as by turning on a hinge 2 is characterized in that the dividing line 4 between the parts is forwardly located, so that all four side surfaces of the front part 1 are narrow compared with those of the rear part 3, in order to afford ready access to the film spools 8, 9, which turn in holders 6, 7 mounted on an inner casing 5 connected to the front part 1.
Patent GB-1351802-A (GB)
Title: Oxidation catalysts
IPC: B01D53/86
Filed: 1971-04-19
Abstract: 1351802 Purifying I C engine exhaust gases SOC ANON SADAC - HERSTAL 19 April 1971 [6 Feb 1970] 21305/71 Heading F1B [Also in Division B1] A vehicle exhaust gas containing CO and C 6-8  paraffinic hydrocarbons is purified by dilution with 16 volumes of air and combustion over a copper oxide catalyst prepared by impregnating a mullite honeycomb with a molten copper salt and converting the salt to the oxide. Other examples describe the purification of air containing CO or C 7 H 16  over the same catalyst, of air containing gas-oil vapour over a CuO-MnO 2  catalyst prepared in similar manner, and of air containing light fuel oil vapour with CuO-MnO 2 - Co 2 O 3  - mullite honeycomb catalyst also prepared in a similar manner.
Patent GB-692362-A (GB)
Title: Improvements in or relating to gear cutting or like tools
Inventor: RILEY JOSEPH
IPC: B23F21/16
Filed: 1950-08-29
Abstract: 692,362. Gear-cutting. SYKES, Ltd., W. E. Aug. 27, 1951 [Aug. 29, 1950], No. 21367/50. Class 83 (iii). A gear-cutting &c. tool comprises blades 4 secured in slots in a body 1 by deforming parts of the body into recesses in the blades, the blades being secured axially by deforming other parts 9 of the body into engagement with securing washers 8. V-grooves 5 are milled in the body to assist in securing the blades. Reference has been directed by the Comptroller to Specification 687,023.