baber/WOPTO huggingface dataset:
Patent GB-283019-A (GB)
Title: Improvements in processes of weighting natural silk
IPC: D06M11/20
Filed: 1927-03-24
Abstract: 283,019. Clavel, R. March 24, 1927. Addition to 266,640. Yarns, treating with liquids.-The process described in the parent Specification for weighting natural silk yarns or fabrics is modified by incorporating the acid substance, for increasing the acid concentration of the metal salt bath, with the silk before the silk has been brought into the bath, and maintaining a lower acid concentration of the weighting baths, or omitting the addition of acid or salt to that bath. A protective colloid may be used with the acid substance for the preliminary treatment of the silk before it is rsubjected to the weighting bath. In an example, crepe de chine fabric consisting of natural silk or a mixture of silk and other fibre is passed through a solution containing phosphoric acid and glue. It is then passed through four baths containing tin tetrachloride, and, after squeezing, it is treated in a mono-sodium phosphate and a disodium phosphate bath and, finally, in a bath of water glass containing soap. In other examples, the silk in the form of goods or skeins is treated with preliminary baths of aluminium acetate and mono-chloracetic acid respectively.
Patent GB-1260802-A (GB)
Title: Check valve
Inventor: GRAVES GAIL WEST
IPC: F16K15/04
Filed: 1970-02-20
Abstract: 1,260,802. Valves. JOHN L. DORE CO. 20 Feb., 1970, No. 8204/70. Heading F2V. A corrosion resistant check valve comprises a pair of complementary body members 10, 12 together defining a body cavity 22; a first liner member 26 secured interiorly of the body member 10 and having a raised face 32 to form a valve seat, and a plurality of vanes 34; a second liner member 36 secured interiorly of the body member 12, having a plurality of vanes aligned with those of the first body member 10, at least one of the vanes having a stop; a valve member 40 slidable within the vanes; and means clamping the body members 10, 12 together. The liners are preferably made of polytetrafluoroethylene or a vinyl polymer. The ball valve member is also made corrosionresistant.
Patent GB-657879-A (GB)
Title: Improvements relating to variometers
IPC: H01F21/00
Filed: 1949-03-25
Abstract: 657,879. Inductances. METROPOLITANVICKERS ELECTRICAL CO., Ltd. March 25, 1949, No. 8237. Convention date, March 26, 1948. [Class 38 (ii)] A variometer comprises two relatively movable coils 1, 4 each consisting of a plurality of turns each in the form of a figure 8 and arranged coaxially in spaced planes, the two coils being mounted for relative angular movement with the turns of one coil interleaving the turns of the other coil. The turns of the fixed coil 4 are supported by a fixed member 3 having a series of apertures formed therein while the turns of the movable coil 1 are secured to a rotatable shaft 2, the coils being electrically connected in parallel. Rotation of the shaft 2 increases or decreases the overlap between the respective lobes of the fixed and moving coils and thus varies the inductance of the device. In another embodiment the connections between the turns of the coils may be brought to the outside circumference instead of being at the axis of the shaft 2.
Patent GB-140467-A (GB)
Title: Improvements in or relating to blowpipes
IPC: F23D14/82
Filed: 1920-03-19
Abstract: 140,467. Air Reduction Co., (Assignees of Walker, G. L.). March 19, 1919, [Convention date]. Void [Published under Sect. 91 of the Act]. Blowpipe burners. - " Flashbacks " are prevented in blowpipe burners by supplying the combustible gas at a velocity and pressure substantially equal to or exceeding those of the oxidizing gas at the mixing point. The combustible and oxidizing gas passages are preferably of substantially equal cross-sectional area, but the combustible gas passage may be of slightly smaller area than the oxidizing passage if the pressure of the combustible gas exceeds that of the oxidizing gas. The two passages are preferably brought together at a relatively sharp angle, but may be parallel or substantially parallel, and deliver the gases into a mixing-chamber. Fig. 1 shows a blowpipe burner in which the oxygen pipe 12 and acetylene pipe 13 deliver the gases through passages 14, 15 of substantially equal cross-section in a filler 14 into a mixing-chamber 17 in a head 5 carrying a burner tip 7. The mixed gases pass through a passage 6 in the head 5 to a discharge passage 8 of smaller cross-section in the burner tip. The discharge passage is preferably countersunk. Fig. 2 shows a different construction in which the oxygen pipe 27 and acetylene pipe 28 deliver the gases through converging passages 25, 26 of substantially equal cross-section in a head 20 into a discharge passage 22 in a burner tip 21.
Patent GB-126805-A (GB)
Title: Devices for Regulating the Tension of Yarns or Threads in Winding Machines.
Inventor: SMITH RICHARD HATTERSLEY
IPC: B65H59/22
Filed: 1918-05-17
Abstract: 126,805. Smith, R. H. May 17, 1918. Tension arrangements.-In tension devices for winding-machines of the class wherein rollers are employed for pressing on the yarn, the roller is provided with a hemispherical end and is mounted on a base 3, Fig. 2, of hardened metal or vitreous material. The roller is retained in position by a shield 4 the edge d of which is shaped so that, in conjunction with edges c on guides 5, it facilitates the threading of the yarn, which passes between the roller and the base. The tension may be varied by mounting the roller on a lever g provided with an adjustable pivot h and a notched arm or screwed extension p carrying an adjustable weight s. In Provisional Specification 8264/18, it is stated that both ends of the roller may be hemispherical, and that rollers of different weights may be employed or additional rollers may be superposed on the first.
Patent GB-897857-A (GB)
Title: Purifying ammoniacal solutions which contain nickel and/or cobalt
IPC: C01G53/11
Filed: 1959-03-10
Abstract: Metal values, especially copper, are separated from ammoniacal solutions, containing at least one salt of nickel and/or cobalt, free ammonia, and a salt of at least one metal which forms an insoluble sulphide more readily than nickel in said solution, said solution further being substantially free from polythionate and thiosulphate ions, by a process which comprises the steps of adjusting the free ammonia content of the solution to within the range of 2 to 4 mols per mol of dissolved nickel plus cobalt, dispersing particles of elemental sulphur in solution in an amount in excess of that required to combine with the metal values to be precipitated as sulphides, and actively agitating the dispersion at above 90 DEG C. to precipitate the insoluble metal sulphides, which precipitate is separated.  The metal sulphide forming reaction may be initiated by the addition to the reaction mixture of a polythionate having more than two sulphur atoms, a thiosulphate, sulphur dioxide, matter, or a mineral sulphide.  The solutions to be treated may be obtained by the aid of alkaline, especially ammoniacal, leaching of mineral sulphides, preferably at elevated temperature and pressure in the presence of an oxygen-containing gas.  Metal values which may be separated include silver, gold, ruthenium, germanium, tungsten, bismuth, platinum, cadmium, rhodium, molybdenum, tin, osmium, vanadium, mercury, palladium, arsenic, antimony, and especially copper.  Specifications 670,181, 722,373, 746,633, 761,129 and 791,916 are referred to.
Patent GB-1023714-A (GB)
Title: Improvements in and relating to the treatment of wood
IPC: B27K3/36
Filed: 1964-02-28
Abstract: Distortion of wood is prevented by impregnation of at least a surface layer with a mono or poly ethylene or propylene glycol or a derivative thereof in a concentration of at least 50% and subsequently drying the wood to reduce the moisture content to below the fibre saturation point.  The wood may be in the form of veneer, plywood, or laminated wood and may be cut after treatment. The derivative may be an ether, ester, or ether ester. Impregnation may be effected at 0-200 DEG C. under normal pressure by immersion or brushing for 0.5-5 mins.  The solvent may be an alcohol, ester, ether, ketone, petroleum hydrocarbon, or terpene. The wood may be treated simultaneously or subsequently with a water-soluble polysaccharide.  It may also be treated with an ionic on non-ionic surface active substance.
Patent GB-609628-A (GB)
Title: Improvements in or relating to turntables
IPC: F41A27/16
Filed: 1946-03-19
Abstract: 609,628. Gun turntables. TAYLOR, G. W. R., and MITCHELL, S. S. C. March 19, 1946, No. 8487. [Class 92 (i)] [Also in Groups X, XXX and XXXIV] A turntable for guns is provided with antifriction rollers mounted on a flange porpendicular to the base and riding on a bearing surface dependent from the table to prevent tilting, and rollers mounted with their axes at right angles to the face of the turntable to resist side thrust. In the form shown, a turntable comprises a base 1 having a central tubular column 2 and a concentric sectional flange 3 at or near its periphery attached by bolts 4. Between the column 2 and flange 3 is a ring member 6 bolted to the base by bolts 5, having formed about its interior two sets of teeth 7 and carrying at its exterior a flange 8 to which is secured the lower race 9 of the usual roller bearing, the rollers 10 of which are carried in a cage 11. The upper race 12 of the roller bearing is secured to the underside of the turntable 15 which is thus freely rotatable. To prevent tilting, the flange 3 is provided with a series of radial holes that receive reduced end parts of cylindrical bearing blocks 14 about which rotate anti-friction rollers 15. These rollers ride on a race on a flange 16 that extends downwardly from a ring 13a arranged round and secured to the turntable 13. The bottom portion 17 of the flange 16 is outwardly directed to serve as a clip which engages the rollers 15 and prevents tilting. A second annular flange 18 depending from the turntable serves to house a roller bearing consisting of rollers 19 with their axes parallel to the column, races 20, 21 and a cage 22. The races and cage rest on a disc 23 secured to the flange 18. The rollers 19 serve as anti-friction rollers to resist side thrust. Movement of the table is effected by driving the shaft 27, thus rotating gear-wheels 26 which engage in the fixed teeth 7.
Patent GB-754376-A (GB)
Title: Improvements in or relating to impression taking compositions
Inventor: NOYES STANLEY EDWARD
IPC: A61K6/90
Filed: 1954-03-24
Abstract: In a plastic composition for taking dental impressions as described in Specification 754,375, the zinc fluoride is replaced by lead fluoride.  U.S.A. Specification 2,657,971 also is referred to.ALSO:In a plastic composition for taking dental impressions as described in Specification 754,375 the zinc fluoride is replaced by lead fluoride. In an example 5.0 gm. of lead fluoride is added to a mixture of 72 gm. alkali metal alginate, 220 gm. diatomaceous earth, 7 gm. tetrasodium pyrophosphate, and 40 gm. calcium sulphate hemi-hydrate. U.S.A. Specification 2,657,971 also is referred to.
Patent GB-535602-A (GB)
Title: Improvements in braider carrier
IPC: B65H59/04
Filed: 1940-05-13
Abstract: 535,602. Braiding-machines. MOSSBERG PRESSED STEEL CORPORATION. May 13, 1940, No. 8608. Convention date, May 6, 1939. [Class 74 (i)] Relates to the provision of an improved connecting link 21 at the upper ends of the guide standards 14, 15 carried by a bobbin carrier. The part fitting over the standard 14 is bushed at 24 while the standard 15 has a squared or other end 31 which fits the hole 26. A spring 29 on the standard 14 above the link 21 abuts on a guide 30. The link can be removed if it is required to change any of the parts carried by standards 14, 15. Specification 413,193 is referred to.
Patent GB-683305-A (GB)
Title: Improvements in bearings for rotating parts
IPC: F16C33/60
Filed: 1950-04-06
Abstract: 683,305. Making race rings for bearings; jointing. MARX, E. April 6, 1950 [April 6, 1949], No. 8705/50. Classes 83 (ii) and 83 (iv). [Also in Group XXXIV] In a ball, roller or floating bush bearing, each race-ring consists of two parts 2, 4 and 6, 8, respectively, made from two rings 24, 26, identical grooves 32 being machined out of the end faces 28 and 30 of each ring to make the surfaces of the race tracks. In the base of each groove 32 is cut a slot 34, with a V-sectioned bottom, which nearly reaches the outer end face of the ring. Bounding the end faces 28, 30 are slightly conical pairs of surfaces 36, 38. When the bearing is to be assembled, the two rings 24, 26 are heated to different temperatures so that the pairs of surfaces 36, 38 can be passed over one another, and on cooling become securely interengaged. The end faces 21 of the bearing are then machined away until the slots 34 are just exposed, so that the single ring thus becomes divided along a surface of revolution into the inner and outer race, 2, 4 and 6, 8. The bearing may also be assembled by first dividing the two rings 24, 26 each into two parts and then bringing the parts into engagement around the balls 16 and cage 18. Alternatively the rings can be pressed together without heating them to different temperatures. In modified forms of the bearings, the rings 24, 26 are divided into two parts by cutting grooves in their end faces to intersect the grooves 34. Specification 683,304 is referred to.
Patent GB-727629-A (GB)
Title: Improvements in or relating to refrigeration systems
IPC: F25B47/02
Filed: 1953-03-30
Abstract: 727,629. Refrigerating. CARRIER ENGINEERING CO., Ltd. March 30, 1953 [Sept. 30, 1952], No. 8800/53. Class 29. In a refrigerating system comprising a compressor 2, a condenser 4, a receiver 6, an expansion valve 11 and an evaporator 14, defrosting is effected by passing hot gas from the compressor, direct to the evaporator through a pipe 20 and a restriction 21, the discharge pressure being conveyed to the receiver 6 through a pipe 22 and shut-off valve 23 to prevent egress of liquid from the condenser which is thus inactivated by flooding. The restriction 21 is so selected that condensation does not occur in the evaporator. If the superheat in the evaporator exceeds a selected value, expansion valve 11 admits liquid refrigerant from the receiver 6. Shut-off valve 23 and restriction 21 are opened by solenoids for defrosting and may be controlled as to closing by a timer or by the pressure in the suction line to change the system to the refrigerating condition. Restriction 21 may be replaced by a solenoid-operated shut-off valve in series with a fixed restriction. The fans 5, 18 associated with the condenser and evaporator may be stopped during defrosting. The receiver 6 is insulated. In a modification, a three-way valve in the discharge line serves to direct gaseous refrigerant to the condenser inlet or to the receiver and the evaporator. The system may be used for heating or cooling the space containing the evaporator.
Patent GB-802890-A (GB)
Title: Improvements in reversing drive mechanisms
IPC: F16H3/00
Filed: 1956-03-21
Abstract: 802,890. Reversing gearing. RATCLIFFE, A. March 21, 1957 [March 21. 1956], No. 8805/56. Class 80 (2). A belt-driven reversing gearing comprises fast and loose pulleys 10, 20 mounted on a shaft 12, differential gearing 22, 32, 16 between the pulleys and releasable means 42 for holding stationary the planet carrier 30 of the differential gearing. The loose pulley 20 carrying the bevel gear 22 is freely rotatable on a sleeve 18 rigid with the planet carrier 30 and having a brakedrum 34 with inclined faces 36. The brake member 42 comprises two substantially semicircular members having friction linings, the members being hinged at one side and clampable on the drum 34 by a screw and nut at the other side. The arrangement provides forward drive with the belt or pulley 10, idling with the belt on pulley 20, and reverse with the belt on pulley 20 and the brake engaged.
Patent GB-1402751-A (GB)
Title: Ampholytic materials
IPC: G01N27/447
Filed: 1972-07-10
Abstract: 1402751 Electro-phoretic separation N GRUBHOFER 10 July 1972 [28 July 1971] 8842/72 Heading C7B [Also in Division C2] A process for the separation or analysis of high molecular weight ampholytes by electro-phoretic focusing comprises the use of an ampholytic material which is a mixture of polyamines containing at least four primary, secondary, tertiary or quaternary amine groups, as basic groups, and at least one sulphonic acid or sulphonic acid ester group, as acidic group.
Patent GB-879319-A (GB)
Title: Improvements in or relating to sliding clasps
IPC: B29D5/04
Filed: 1958-03-19
Abstract: 879,319. Sliding clasp fasteners. RUHRMANN, T. March 19, 1958 [March 28, 1957], No. 8869/58. Class 44. A string of locking elements for a sliding clasp fastener comprises a filamentary length of material formed into a succession of transverse locking elements 1 and longitudinal spacing members, each locking element being generally in the shape of a U having limb portions, each two adjacent locking elements being joined by a spacing member bridging the ends of two limb portions of the locking elements, the spacing members and/or the limb portions of the locking elements being provided with deformations transversely of the string so as to facilitate guiding a slider along the string when operating a sliding clasp fastener incorporating the string. As shown in Fig. 1 the deformations are formed by bending the limb portions so that the ends of the limbs and the spacing members I are spaced from the surface of a carrier tape 4. In a modification of this construction the cross-section of each member 11 is made rectangular with the longitudinal dimensions at right angles to the surface of the tape 4. In the embodiment shown in Fig. 3, the spacing members 112 are deformed so that they are of trapezoidal cross-section. In the construction shown in Fig. 4 the spacing members 113 are made of U-shape so that the base of the U of each portion is spaced from the surface of the tape 4. In the construction shown in Fig. 5 the spacing members 11 lie on top of the individual locking elements 1 and in the construction shown in Fig. 6 the locking elements 1 lie over the spacing members 11. In the constructions shown in Figs. 1-4 the elements have a cover 3. Specification 821,341 is referred to.
Patent GB-1224858-A (GB)
Title: Improvements in or relating to high-speed labelling machines
IPC: B65C9/14
Filed: 1970-02-25
Abstract: 1,224,858. Improvements in labelling machines. SOC. FRANCAISE D'ETIQUETAGE VIREY & GARNIER. 25 Feb., 1970 [20 Nov., 1969], No. 8962/70. Heading B8F. A device for picking-up labels from a magazine 1 and transferring them to a transfer roller 3 comprises a planetary pick-up roller 5 mounted in an eccentric position in a sleeve 9, and fast with a planet pinion 11 meshing a ring gear 13. A pinion 6 drives the sleeve 9 and is fast with an eccentric 14 acting by way of a rod 15 to oscillate the ring gear 13, so that the pickup roller is driven for constant continuous rotation in direction 9b in the space between the stationary label magazine and the rotating transfer cylinder and for rotation in direction 5a about itself, the latter rotation being retarded as the roller picks up a label by suction from the magazine due to the rotation of the toothed annulus, controlled by the eccentric 14 and rod 15, along a path indicated by the arrows 17 in a direction opposite to that of the pick-up roller, and increased when the label is being applied to the transfer cylinder due to the rotation of the toothed annulus in the same direction as the pick-up roller. As a result of the actions of the toothed annulus, the tangential velocity of the pick-up roller 5 is zero when it picks up a label from the magazine and is increased to be similar to that of the transfer roller 3 when the label is transferred to it as the suction is momentarily released.
Patent GB-715096-A (GB)
Title: Air distributor device
IPC: F24F13/06
Filed: 1952-04-09
Abstract: 715,096. Ventilators. STEWART, I. M. April 8, 1953 [April 9, 1952], No. 9102/52. Class 137 An air distribution device for fitting to an air supply duct 18 comprises two spaced plane circular discs 1, 2, a central aperture 4 being formed in disc 1 through which air enters the space between the discs for discharge through an annular outlet 5 between the peripheral portion of the discs 1, 2, and a baffle plate 6 which is movable circumferentially to baffle any selected segment of the outlet 5. The plate 6 which is provided with a knob 6' consists of a cylindrical segment guided in grooves 7 formed in the faces of the discs 1, 2, close to their peripheries. A valve lid 8 is slidable from the open to the closed position 8<SP>1</SP> by rotation of a screw-threaded member 9 whose threads 14 are engaged by a pair of diametrically opposed pins 12 provided on a central boss 11 of the lid 8. The member 9 is journalled in a tube 10 which is supported centrally of the aperture 4 by a bearing block 2<SP>1</SP> fixed to the disc 2 and a pair of longitudinal s'ots 13 are formed in the tube 10 to allow the pins 12 to protrude therethrough. The discs 1, 2, are held spaced apart by screws 3 and the entire assembly is attached to a flanged ring 15 the flange 16 of which is fitted to the portion of the ceiling 17 adjacent the duct 18. In a modification the baffle plate is attached to a support mounted on a pivot disposed centrally of the device.
Patent GB-244977-A (GB)
Title: Improvements in prepayment gas meters
IPC: G07F15/00
Filed: 1925-04-06
Abstract: 244,977. Hansford, J. April 6, 1925. Gas, supplying by meter.- A plug valve normally held open by a spring 130, Fig. 1, is closed by a sleeve nut 14 15, the sleeve being rotated by travelling on a screwed spindle 15, the sleeve being rotated by a worm 160 on a meter driven spindle 16 engaging a worm wheel 142. The screw 15 is rotated by prepayment to allow the valve to open. The valve and the prepayment mechanism are carried by a plate 18 easily detachable from the meter. Coin action, mechanical-connection; pricechanging mechanism.-The coin-mechanism comprises a fixed outer cylindrical casing 19 and two inner slotted casings 20, 22, the casing 20 being provided with a handle 200 having a bearing in a price-change disc 21. The casing 20 has two stops 202, 203, Fig. 4, which engage with stops 220, 211 on the casing 22 and the disc 21 respectively when the handle is turned in an anti-clockwise direction to bring the slots in the casings into alignment with each other and with a slot 210 in the disc 21 and a slot 201 in the handle. After insertion of a coin, the handle is turned in a clockwise direction until a stop 222 on the casing 22 engages a stop in the casing 19 whereupon the coin drops through a slot in the casing 19 to a money-box. A pawl 230 on the casing 22, during. its clockwise rotation, drives two ratchet wheels- 23, 24 connected together and secured to the screwed spindle 15. Backward rotation of the ratchet wheel is prevented by a pawl engaging' the wheel 24. Reverse rotation of the inner casings, when a coin is present, is prevented by the coin engaging a tail 231 of the pawl 230. The price-change disc is secured in adjusted position by a pin engaging one of a series of peripheral notches 212. Indicators.-On the sleeve 14 is a collar 25 which is secured to a bent rod 26 carrying a pointer over a scale mounted in a frame 27.
Patent GB-565423-A (GB)
Title: Improvements in or relating to apparatus for playing board or table games
IPC: A63D15/00
Filed: 1943-06-08
Abstract: 565,423. Table games. KINGDON, E. M. (Kingdon, R.). June 8, 1943, No. 9205. [Class 132 (ii)] In apparatus for playing a game resembling billiards or snooker-pool and wherein a striker piece is projected by a cue over a smooth surface at playing pieces of the same size and weight, the table is marked adjacent its side edges with areas 5, 6 in which the playing pieces (not shown) are closely encompassed initially and is also marked centrally to provide an area in which the striker piece is placed initially. As shown, the areas 5, 6 are of triangular shape and are each divided to enclose three playing pieces. Pockets 2 are provided at the corners.