baber/WOPTO huggingface dataset:
Patent GB-916937-A (GB)
Title: Yarn tensioning means for multiple-needle tufting machines
IPC: D05C15/00
Filed: 1959-11-12
Abstract: 916,937. Tufting-machines. SINGERCOBBLE Inc. Nov. 12, 1959 [Nov. 19, 1958], No. 38387/59. Class 112. In a multi-needle tufting-machine having means for feeding a plurality of yarns to a like number of needles in a common plane, the yarns pass from the feeding means to the needles between a pair of corrugated rolls having intermeshing teeth of uniform depth, the axes of the rolls being parallel to the plane of the needles, and one of the rolls being positively driven at a peripheral speed greater than the speed of the yarns fed to the rolls. The invention is applied to the tufting- machine described in Specification 780,370, in which the row of needles 14 is divided into sucsessive sets each of which produces the same pattern, and in which yarn 18 is supplied to each needle by one of a plurality of feed rolls, each feed roll supplying yarn to a corresponding needle in each set, and the speed of the feed rolls being so controlled as to vary the heights of the tuft loops in accordance with the desired pattern. The yarns are guided in tubes 17 terminating in an angle-bar 20, and upon energing from the tubes pass between corrugated rolls 24, 25 having intermeshing teeth 26, 27, respectively. A shaft 28, carrying roll 24, also carries a pinion 32 meshing with a driving pinion 33. Pinion 32 also meshes with a pinion 42 loosely mounted on shaft 29 and fixable in a position of angular adjustment thereon by a set-screw 43. The teeth are so formed that the yarns while being frictionally engaged therebetween, are not tightly clamped but are capable of slipping. The speed of the rolls may be varied within a range above the speed of the fastest yarn to adjust the tension in the yarns. The tension may also be varied by adjusting the angular position of the driven gear 42. It is stated that the arrangement delivers all the yarns at a uniform tension to the needles and thus prevents the occurrence of irregularity in the heights of the tuft loops. In a modification, gear 42 is omitted and roll 24 drives roll 25 directly. An adjustable friction brake device is provided on shaft 29 for varying the yarn tension.
Patent GB-1282901-A (GB)
Title: Work handling apparatus for sewing machines and the like
IPC: D05B33/00
Filed: 1969-08-01
Abstract: 1282901 Delivering sheets CLUETT PEABODY & CO Inc 1 Aug 1969 [21 Aug 1968] 38634/69 Heading B8R [Also in Division D1] A work handling apparatus for a cutting, printing or button sewing machine comprises a first belt 11 a second belt 30 located below the first belt and running parallel to the first for a distance, means 20, 24, 25 for moving the belts against each other, for transport of the work, or away from each other to allow insertion or removal of the work, means 22 for maintaining tension in the first belt as the belts are separated and means operatively attached to the belts for advancing both belts simultaneously and intermittently in predetermined increments. The latter means comprises, (Fig. 2, not shown) a pneumatically reciprocated rack (54) engaging a pinion (53) which is coupled for rotation in one direction to a shaft (41) carrying a sprocket (44) connected to the driving pulley 21 of belt 11 and by a chain (48) to a sprocket (44a) driving pulley 31 of belt 30. The one way coupling includes a brake operative to hold the shaft (41) during return motion of the rack. Stacking work.-Work fed by the belts overlaps a workplate 61 provided with work locating plates (64, 65, Fig. 3, not shown). When the belts release the work a pneumatically operated stacker advances to the position shown in Fig. 4 and air jets from holes fed by a conduit 56 below the plate 61 blows part of the work over the bar 95 which then swings away. An electrical system (Fig. 6, not shown) controlling the sequential operation of the pneumatically operated devices is described.
Patent GB-989595-A (GB)
Title: A process for the preparation of concentrated aqueous despersions of rubbers or synthetic resins
Inventor: HEIJ G E LA
IPC: C09K23/00
Filed: 1963-10-01
Abstract: A concentrated dispersion of a rubber or synthetic resin in water is prepared by forming an unstable dispersion of the rubber or resin in water in the absence of a solvent thereof and in the presence of at least one water-soluble emulsifier, enough emulsifier being used to cause in this dispersion within 24 hours spontaneous-segregation of a top layer which is itself a dispersion containing at least 50% of the total amount of the rubber or resin and in which their concentration is at least 10% and at least 1.2 times as high as in the unstable dispersion before segregation and spontaneous segregation is subsequently allowed to occur or non-spontaneous segregation is caused to take place in the unstable dispersion.  Ionic emulsifiers are preferred.  The unstable dispersion may be prepared by first mixing the rubber or resin with a water-soluble emulsifier and/or organic emulsifier acid, dispersing in water and, if an emulsifier acid is present converting it in situ to an emulsifier by neutralization, or the unstable emulsion may be prepared by adding the emulsifier to a stable dispersion of the rubber or resin in water.  The stable dispersion may be prepared by emulsifying a solution of the rubber or resin in an organic solvent in water and then removing the organic solvent. The segregation may be accelerated with the aid of a centrifuge or hydrocyclone.  After segregation the bottom layer may be mixed after concentration with a fresh quantity of the stable dispersion.  Specified rubbers and resins are polyisobutene, butadiene-styrene (low or high styrene), butadiene-acrylonitrile, polybutadiene, polyisopropene, copolymers of ethene with propene and/or butene especially those containing also dicyclopentadiene, liquid polydienes, liquid diene copolymers, polystyrene, polyvinyl chloride, polymers and copolymers of vinyl esters.
Patent GB-1042228-A (GB)
Title: Continuous production of polyamide articles
Inventor: CARTER JOHN ANTHONY
IPC: C08G69/04
Filed: 1964-09-24
Abstract: Filaments, films and ribbons of high M.W. linear polyamide are produced from either (a) a C6- 12 o -aminoaliphatic carboxylic acid, (b) a polymethylene diammonium salt of a C8- 24 aliphatic a ,o -dicarboxylic acid or (c) an aromatic diammonium dicarboxylate salt or aminocarboxylic acid as defined below, by (I) pumping the monomer in aqueous solution along a tube which has an internal diameter not exceeding 4.5 cm. and is heated to the polymerization temperature, the pressure being at least 14 atmospheres at the entry of the tube decreasing as a continuous monotoxic single-valued function of the distance along the tube to atmospheric or below at the exit but at any point permitting evolution of steam so that at least 90% of the total theoretical water of condensation is removed, (II) collecting the polyamide so formed in a heated reservoir and (III) withdrawing the collected material and melt spinning it characterized in that the rate of introduction of monomer into the tube is varied so that the polyamide level in the reservoir remains constant the rate being reduced from M + a to M - a by reducing the rate of introduction of solution by a factor (M + b)/(M + a) and reducing the solution concentration by a factor (M + b)/(M - a) and conversely increasing the rate of introduction of monomer by increasing the rate of introduction of solution by a factor (M + a)/(M + b) and increasing its concentration by a factor (M - a)/(M + b), M being the mean polyamide output required in mass per unit time and a and b being fractions of M, a between 0 and 1/5 M and b between 0 and 1/2 a. The aromatic diammonium dicarboxylate salt may be derived from a diamine of formula NH2-X-NH2 and a dicarboxylic acid of formula HOCO-Y-COOH wherein X represents a chain of p-methylene groups containing, not joined directly to nitrogen; 1-, m- or p-phenylene links and Y is a chain of r-methylene groups containing sm- or p-phenylene groups, q and s being 0-2 at least one not being 0, p being at least 2 but at least 6 if q is 0, r being at least 4 if s is 0, p+r being at least 6.  The aromatic amino-carboxylic acid may be of formula NH2-Z-COOH wherein Z represents a chain of t-methylene groups and, not joined directly to nitrogen, um- or p-phenylene links, u being 1 or 2 and t at least 3.  X, Y or Z may carry alkyl substituents and contain -O-links providing the groups:  -O-O-, -O-CH2-N- and -O-CH2-CH2-CO-are absent.  Monomers specified include hexamethylene diammonium adipate.  Monofunctional acids and amines, e.g. acetic acid, and free diacids or diamines, e.g. hexamethylene diamine may be prosent in the reaction mixture. Other additives may be dyes, pigments, e.g. TiO2, dyestuff precursors, heat and light stabilizers, plasticizers, delustrants, other polyamides and other resins.  The process may be carried out so that the rate of introduction of water into the polymerization tube is constant.
Patent GB-1519016-A (GB)
Title: Photographic exposure control systems
IPC: G03B7/16
Filed: 1975-09-23
Abstract: 1519016 Camera diaphragm control POLAROID CORP 23 Sept 1975 [22 Nov 1974] 39019/75 Heading G2A A shutter-diaphragm comprises blades 26, 28 which are opened by drive means 60 until a selected aperture is reached, whereupon a sensor 70 provides an output signal to terminate actuation of the drive means 60 and thereby halt the blades. As shown; sensor 70 is an electric contact forming part of a fellow focus arrangement in which a wheel 22 is rotated to focus the lens 20 via gears 24 and 18, and a cam follower 78 engages wheel 22 to position contact 70 accordingly. Contact 70 engages a contact pad 72 to close a circuit for feeding clock pulses to a stepper motor 60. As the blades 26, 28 open, a tab 90 on blade 26 shifts contact 70 away from contact pad 72 to terminate the supply of pulses and thereby stop motor 60.
Patent GB-1485887-A (GB)
Title: Hydraulic load sensitive pressure and flow compensating system
IPC: F15B11/16
Filed: 1975-09-24
Abstract: 1485887 Fluid-pressure servomotor systems GENERAL SIGNAL CORP 24 Sept 1975 [25 Sept 1974] 39146/75 Heading G3P An hydraulic system for selectively controlling operation of a plurality of hydraulic motors 10, 11 including a variable delivery pump 12 having a stroke control cylinder 13 and supplying fluid to the motors through respective control valves 14, 15 having variable restricting orifices 16 comprises pressure responsive flow dividing valve means 17 for delivering surplus flow from the valve 14 to the valve 15 and pressure and flow compensating valve means 18 responsive to a differential pressure across a variable orifice in the valve 15 for controlling the pressure in the cylinder 13 and hence the delivery of the pump 12. When the system is at rest, the valve 18 regulates the pump output to compensate for leakage losses. A further valve 19 connects the pump output direct to cylinder 13 to limit maximum pressure while conventional pressure relief valves are incorporated in each of the units 21, 22. The valves 14, 15 are in the form of reciprocable spools and the orifices 16 are provided by notches in the edges of the spool lands.
Patent GB-1277876-A (GB)
Title: Direct current dynamo electric machines
Inventor: WEST JOHN GODFREY WILSON
IPC: H02K23/04
Filed: 1968-08-16
Abstract: 1277876 Core construction JOSEPH LUCAS (INDUSTRIES) Ltd 23 July 1969 [16 Aug 1968] 39324/68 Heading H2A In a D.C. dynamo-electric machine comprising a yoke, a plurality of poles and a wound armature, the flux path between the yoke and that part of each pole face beneath which armature reaction tends to reduce the flux has a higher reluctance than the flux path between the yoke and the remainder of the pale face. In one embodiment (Fig. 2) each pole comprises a low-reluctance steel part 11 bolted to the yoke and a ferrite magnet 12 held alongside the part 11 by spring 14. In a modification (Fig. 6, not shown) a bent-in portion of the yoke replaces steel part 11. In other embodiments each pole comprises a ferrite block of varying thickness (19, Fig. 4) or two separate blocks of different thickness, as 15, 17, Fig. 3. In Fig. 3, each block carries a steel pole piece 16, 18.
Patent GB-364827-A (GB)
Title: Improvements in or relating to emergency flotation gear for aircraft
IPC: B64C35/00
Filed: 1930-12-31
Abstract: 364,827. Emergency flotation gear. YOUNGMAN, R. T., Walcot, Church Crookham, Hampshire. Dec. 31, 1930, No. 39344. [Classes 4 and 113 (i).] Emergency flotation gear for aircraft comprises a single collapsable and inflatable float 1 which is anchored to the aircraft 5 in such a manner that when in use the float is located in the plane of symmetry of the aircraft and above the centre of gravity. The float, which is of spherical, annular, or analogous shape, is normally stowed in a compartment in the fuselage behind the pilot or in the wing centre section, the compartment being closed by a door or cover releasable by the pilot or automatically on inflation of the float. The inflation means comprise flexible tubing 8 of such a length as never to become taut, connected to an air or gas bottle 9 or alternatively to a pump. Rigging cords 2 connected to the float converge to the point 3 where they are releasably connected to sling cords 4 anchored to the aircraft symmetrically about its plane of symmetry in such a manner that the aircraft is held in a submerged condition in a diving attitude as shown. The rigging and sling cords are sufficiently strong to enable the aircraft to be lifted out of the water by means of a slinging eye on the float. The float is made stable in the water when cut adrift and may be fitted with equatorial life lines. A spherical float may be stabilized by a depending fabric cone which becomes filled with water and an annular float may have a central canvas floor.
Patent GB-1363026-A (GB)
Title: Support divice for overhead projector
Inventor: RITZERFELD G
IPC: G03B21/132
Filed: 1972-08-24
Abstract: 1363026 Overhead projectors G RITZERFELD 24 Aug 1972 [22 Oct 1971] 39489/72 Heading G2J A device for supporting an object (typically a sheet to be written on) for projection in an overhead projector comprises a frame 6 having a window 4, and a transparent plate 1 having a base portion larger than and positioned below the window, and a further portion which is proud of the base portion and fits in the window so that its top surface is flush with that of the frame. This provides a flat support surface 3. Preferably stays 12 hold the plate 1 in the frame 6 and bolts 19 hold a Fresnel lens 9 in the frame.
Patent GB-877498-A (GB)
Title: Detachable mounting for spindles in spinning machines
IPC: D01H7/10
Filed: 1958-12-09
Abstract: 877,498. Mounting textile spindles. KEYSER, J. J. Dec. 9, 1958 [July 4, 1958], No. 39578/58. Class 120(2) A non-rotary spindle base 1 is located axially and radially in a spindle rail 4 by surfaces 3, 6 respectively of a flange 2 fast with the base 1 and detachably clamped against the rail 4. The surface 6 may be provided by a disc placed in a recess 5 of the flange 2 or by insets of carborundum, emery cloth or felt embedded in three cupshaped recesses of the flange 2, the disc or insets being compressed against the rail 4 when a clamping nut 8 is tightened. It is stated that uneven thickness of the rail 4 is compensated by deformation of a disc 7 placed between the rail 4 and nut 8.
Patent GB-343664-A (GB)
Title: Subaquatic rock drilling devices
IPC: E02B3/02
Filed: 1929-12-27
Abstract: 343,664. Percussive drills. GRANT, W. D., 700, West Georgia Street, Vancouver, Canada. Dec. 27, 1929, No. 39608. [Class 124.] In a subaqueous rock-drilling plant, the percussive drilling equipment comprises a steam cylinder 22, a water-box 23 and a drill rod guide 24 formed as an integral casting ; the sides of the casting have grooves 51 slidably engaging guides. For cushioning, a convex plug 28 is provided in the upper end of the cylinder and bears against the upper cover 29 which is held to the lower cover 30 bv bolts 31 with springs 32. The lower cover carries a gland 36 with a split bushing and with yokes 37 engaging conesponding parts of the cover to reinforce the securing bolts 38. The piston rod is integral with the piston and is enlarged at 39 where it passes through the water box 23 ; the piston rod and drill rod are connected by a threaded coupling 44, the rods having threads of different pitch but similar direction, the direction being opposed to that of the thread of the rifle bar 34 by which rotation of the tool is effected. The coupling 44 has bell-ends overlapping the threads and providing a receptacle for grease. The main casting has lugs 25 for connection through a shackle to a supporting cable.
Patent GB-1292918-A (GB)
Title: Polymerization of conjugated olefins
IPC: C08F36/04
Filed: 1970-08-19
Abstract: 1292918 Alkali metal hydrocarbyl diene polymerization catalyst FIRESTONE TIRE & RUBBER CO 19 Aug 1970 [29 Aug 1969] 40023/70 Heading C3P Conjugated dienes are polymerized in the presence of (a) a potassium hydrocarbyl and (b) a sodium tertiary alkoxide or aralkoxide. In examples, butadiene, isoprene, chloroprene, piperylene, 2 - phenyl - 1,3 - butadiene, -butadiene - styrene, -vinyl toluene, -butene - 1, or -isoprene, and isoprene-hexene-1 are polymerized in the presence of (a) potassium-n-butyl, -t-amyl, -2 - (n) - pentyl, -2 - (2,5) - dimethyl hexyl, -2 - (n) - hexyl, -cumyl, -2 - (2) - phenylethyl- -alpha - naphthyl, -phenyl, or -beta - (alpha)- methyl naphthyl, (b) sodium - t - butoxide, -t - amyloxide, -2 - oxy - 2,5 - dimethyl - hexane, or -cumyl, and (c) in some cases potassium chloride, bromide, fluoride or iodide.
Patent GB-1416903-A (GB)
Title: Rotary harrows
IPC: B67D/
Filed: 1973-01-01
Abstract: 1416903 Rotary harrows C VAN DER LELY NV 1 Jan 1973 [5 Jan 1972] 40276/74 Divided out of 1416901 Heading A1B A rotary harrow has a plurality of soilworking members rotatable about vertical shafts 2, each member consisting of one or more tines 11 with upper ends 10 fixed in tine holders 9 formed at the ends of radial support arms 8. A screen 14 comprising cylindrical collars 15 surrounding each soilworking member is attached to the frame 1 and protects the upper part of the soil-working member from damage by stones, &c. Additional protection may be provided by plates 30 attached to the support arms 8. Alternative constructions include a horizontal plate joining the collars 15 at their lowermost edges and one in which the collars are formed from a single plate by pressing.
Patent GB-1020501-A (GB)
Title: Novel organosilicon polymers and compositions prepared therefrom
Inventor: LEWIS JOHN TUDOR
IPC: C08G77/00
Filed: 1961-11-13
Abstract: Organosilicon polymers of the general formula <FORM:1020501/C3/1> wherein p and s are each 0 or 1, n is an integer of at least 3, each R1 is an alkyl or aryl radical, each R is a monovalent saturated or unsaturated hydrocarbon radical with or without halogen or cyanato substituents, X is a divalent hydrocarbon radical and each A is a substituted or unsubstituted alkoxy radical of less than 10 C atoms, cure to elastomers without the application of heat and without the presence of a cross-linking agent.  Polymers of the above formula, in which p is 1, can be made by the addition reaction of an alkoxy silane and a siloxane, one reactant containing Si-bonded H and the other an olefinically unsaturated radical, in the presence of a Pt catalyst.  Polymers of the above formula, in which p is O, can be made by reacting an alkoxychlorosilane with a hydroxy-terminated siloxane in the presence of an acid acceptor.  The polymers are vulcanized by adding a condensation catalyst, e.g. metal carboxylates such as dibutyl-tin-dilaurate and -diacetate and stannous octoate, amines, amine salts, organic acids and carboxylates of quarternary ammonium hydroxides.  Fillers, e.g. fume silicas, diatomaceous earth and CaCO3, and conventional additives may also be added.  In the example, a mixture of a hydroxy-terminated dimethylpolysiloxane, triethoxychlorosilane and toluene was heated to reflux for 20 minutes, and ammonia gas was passed through for 1 hour to yield, on cooling, filtering and removing volatiles, a colourless liquid siloxane, containing ethoxy groups, which cured to an elastomer on adding a condensation catalyst.  Uses:  In the treatment of paper and textiles; as electrical insulation; and for potting, sealing and caulking.
Patent GB-1129650-A (GB)
Title: Supersensitised photographic silver halide emulsions
Inventor: FRY DOUGLAS JAMES
IPC: G03C1/29
Filed: 1965-09-23
Abstract: 1,129,650. Super-sensitized photographic emulsions. ILFORD Ltd. Sept. 21, 1966, [Sept. 23, 1965], No.40620/65. Addition to 1, 027, 053. Heading G2C. A photographic silver halide emulsion, containing no colour-forming materials, contains a supersensitizing mixture of the dyes:- wherein Y and Z are S or Se; X is an anion; R 1  and R 3  are alkyl, or one is alkyl and the other carboxyalkyl, carbamoylalkyl, or sulphoalkyl; R 2  is H or alkyl; R 4  and R 8  are H; R 5  and R 9  are thienyl, or when only one is thienyl the other is H, halogen, alkyl, aryl, hydroxy, or alkoxy, or together with R 4  or R 8  forms a benzene ring; R 6 , R 10 , R 15  and R 16  are H, halogen, alkyl, aryl, OH; or R 6  or R 10  together with R, or R 11  forms a benzene ring; R 7  and R 11  are otherwise H; R 12  is alkyl; R 13  is H or alkyl; and R 14  is alkyl or a group A-Q, where A is alkylene of 1-6 C atoms, and Q is amide, or carboxylic or sulphonic acid. The emulsion may also contain either the dye: where R 17  and R 18  are H, halogen, OH, alkyl, aryl, or alkoxy; R 19  and R 20  are alkyl; and R 21  is H or alkyl.
Patent GB-1269696-A (GB)
Title: Poly(arylene sulfide) coatings
IPC: C09D181/02
Filed: 1969-08-14
Abstract: 1,269,696. Poly (arylene sulphide) coating. PHILLIPS PETROLEUM CO. 14 Aug., 1969 [15 Aug., 1968 (2)], No. 40702/69. Heading B2E. [Also in Division C3] A coating composition comprising a normally solid poly (arylene sulphide) and 0.5 to 50% by weight of titanium dioxide based on the total weight of poly (arylene sulphide) and titanium dioxide, is applied as a slurry in ethylene glycol, methyl alcohol, water or toluene, to metal substrates, e.g. of iron, steel, titanium or aluminium, dried and then cured by heating to 550‹-800‹F. The substrate may be heated at above 650‹F before the coating is applied. The polymer may be poly (phenylene sulphide). The composition also may contain a fluorocarbon polymer, e.g. poly (tetrafluoroethylene). Examples are given.