baber/WOPTO huggingface dataset:
Patent GB-770767-A (GB)
Title: Improvements in or relating to traverse grinders
Inventor: ENSALL JAMES
IPC: B24B19/18
Filed: 1954-02-20
Abstract: 770,767. Grinding. WAREING & CO., Ltd., T. Feb. 18, 1955 [Feb. 20, 1954], No. 5056/54. Class 60 A traverse grinder, for card grinding on a carding engine, comprises a tube 10, a grinding wheel 48. mounted thereon and constrained to rotate therewith, means for traversing the grinding wheel including a traversing screw 44 within the tube 10, and gearing for rotating the screw relative to the tube, the gearing being enclosed within the tube 10. The tube 10, which has a longitudinal slot 11, is closed at one end by a threaded cap 49 from which projects a shaft 12 carrying a pulley 13 by which the tube 10, and thereby the emery wheel 48, is rotated from a drive associated with the carding engine. A bearing 14 is mounted on the shaft 12 for location in a U-bracket 27<SP>1</SP> of the carding engine: The tube 10 is closed at its other end by an end plate 18 having a tubular extension 19 provided at its end with a member 21 fitting in a groove in a sleeve 24; the sleeve 24 is restrained against rotation by engagement of a bolt 26 therein into a hole in a U- bracket 27 of the carding engine. One end 46 of the traversing screw 44 is mounted by a ball bearing 50 in the end cap 49. The other end 45 of the screw has keyed thereto a member 36 carrying four planet gears 37. These mesh with internal teeth on a lip 39 as the end plate 18 and with a sun gear 35; the latter is mounted on the end of a spindle 34 located within the tubular extension 19, and a pin 33 passes through the spindle 34, a cap 30 and the sleeve 24, thus restraining the sun gear 35 against rotation. The bearing 50 may be a." double-contact " thrust bearing.
Patent GB-657607-A (GB)
Title: Improvements in or relating to electromagnetic wave guides
Inventor: LEWIN LEONARD
IPC: H01P5/02
Filed: 1949-02-25
Abstract: 657,607. Aerials. STANDARD TELEPHONES & CABLES, Ltd. Feb. 25, 1949, No. 5151. EClass 40 (vii)] [Also in Group XL (by] In an arrangement comprising a first waveguide of uniform cross-section, and a section of uniformly-tapered wave-guide coupling the first wave-guide to a further wave-propagating means, the susceptance introduced by the discontinuity at the junction between the first wave-guide and one taper of the tapered section is counteracted by introducing at the junction an additional susceptance of opposite sign. In Fig. 1 wave energy flows from a uniform waveguide 2 into a section 4, the narrow sides of which are tapered, and which leads to a further guide or horn, or which may itself consti. tute a horn. The discontinuity due to the taper introduces at the junction a negative susceptance which is neutralized by the introduction of an inductive diaphragm 6, the dimensions of which can be calculated. The discontinuity at the junction of the wide end of the taper and a uniform guide introduces a positive susceptance which can be corrected by a capacitive diaphragm, Fig. 2 (not shown). In Fig. 3 the wide face of the guide is tapered and the discontinuity introduces a positive susceptance which is corrected by a capacitive diaphragm 8. Conversely the discontinuity between the wide end of the taper and a uniform guide introduces a negative susceptance which is corrected by an inductive diaphragm, Fig. 4 (not shown). In Fig. 5 the uniform section 2 is coupled to a section 10 which is tapered in both directions, and which may constitute a horn, or may be joined to a further wave-guide. As the two tapers introduce susceptances of opposite sign, the horn may be designed to avoid mismatch. Alternatively. a diaphragm of the right kind may be used to correct for the residual introduced susceptance. These corrections are effective over a fairly wide wave-band.
Patent GB-956120-A (GB)
Title: Improvements in or relating to geiger-muller tubes
Inventor: BUTLER MICHAEL JAMES
IPC: H01J47/08
Filed: 1963-02-08
Abstract: 956,120. Ionisation chambers. MULLARD Ltd. Feb. 8, 1963, No. 5242/63. Heading H1D. A halogen quenched Geiger-Muller tube for measuring beta ray emission of liquids comprises a first hollow cylindrical electrode 1, a hollow cylindrical envelope 4 surrounding the first electrode so as to form an annular first space 5 for the liquid, a second hollow electrode 2 located within and substantially coaxial with the first electrode, which second electrode is closed adjacent one end 6 so as to provide a second space for the liquid sample, together with means 12, 13 for applying a potential between the first and second electrodes, wherein the annular space 3 defined by the first and the second electrodes forms the discharge space and is filled with a mixture of rare gases e.g. 99.9% neon and 0.1% argon and a small admixture of halogen, the arrangement being such that the liquid within the first liquid space is electrically insulated from the liquid in the second liquid space. The first electrode preferably serves as the cathode, the second electrode as the anode, and they may both be of chrome iron. A glass tube 16 is placed upon the insulator 10 so as to increase the leakage path between the electrodes.
Patent GB-1533270-A (GB)
Title: Regenerativecycle incandescent lamps
IPC: H01K1/50
Filed: 1976-02-11
Abstract: 1533270 Incandescent lamps WESTING- HOUSE ELECTRIC CORP 11 Feb 1976 [25 Feb 1975 22 Dec 1975] 05252/76 Heading H1F An incandescent lamp 10 of the tungsteniodine regenerative cycle type has a single coil filament 14 within an elongate envelope 11 containing an inert gas at a pressure of at least 1000 torr wherein 0À05 to 0À2 micromole of elemental iodine per ml. of lamp volume is provided by the thermal decomposition of SnI 4  which is stated to inhibit envelope discolouration. During manufacture, the SnI 4  is added through the exhaust tube 12, before sealing, in pellet or liquid form, to provide 0À02 to 0À54 micromole of the compound per ml. of lamp volume. The gas temperature during operation is at least 1027 C.
Patent GB-366741-A (GB)
Title: Improvements in and relating to display devices
IPC: G09F11/29
Filed: 1931-02-20
Abstract: 366,741. Changing signs. WAITE, R. T., Porthmeor, Preston New Road, Blackpool. Feb. 20, 1931, No. 5357. [Class 3 (i).] Display sheets 15 are wound on rollers 13 mounted in the end flanges 7 of a drum rotated continuously by a motor 12. A stationary toothed segment 18 engages pinions 17 on one or both sides of the rollers 13. The drum rotates anticlockwise and the rollers 13 are spring-retracted, thus forcibly unwinding the sheets 15 as they approach the window 5, and allowing them to be rapidly rewound as soon as the pinions 17 are clear of the segment 18. Weighted bars 16 draw the sheets down taut, and serve to limit their winding-on by abutting against cross-rods 20.
Patent GB-1173541-A (GB)
Title: Process for Producing Thermoplastic Resin Foams.
Inventor: FISCHER NICOLAS
IPC: C08J9/30
Filed: 1968-02-05
Abstract: 1,173,541. Emulsifying composition. PRODUITS CHIMIQUES PECHINEY-SAINTGOBAIN. 5 Feb., 1968 [6 Feb., 1967], No. 5661/68. Heading C5D. [Also in Division C3] Emulsifying compositions used in making foamed P.V.C. comprise a mixture of an alkali metal or ammonium alkyl sulphate, an alkanolamine alkyl sulphate, a condensation product of and alcohol or phenol (including alkyl phenols) with an alkylene oxide and an alkanolamide. A specific mixture contains sodium lauryl sulphate, isopropanolamine lauryl sulphate, polyoxyethylene lauryl alcohol and lauric diethanol amide.
Patent GB-489393-A (GB)
Title: Improvements in or relating to carriage mechanisms of telegraph printing apparatus and the like
IPC: H04L13/18
Filed: 1937-02-25
Abstract: 489,393. Typewriters &c. GRIFFITH, R. G. Feb. 25, 1937, No. 5693. [Class 100 (iv)] Letter-spacing mechanism; paper-carriage8.- The type-carriage or the paper-carriage of a page-printing telegraph or a power-operated typewriter is mounted in a support constantly urged in letter-spacing direction by a resilient device which serves to cushion the carriage at the end of the return-movement. The apparatus shown in the Figure comprises, as described in Specification 441,090, a typedrum 1 mounted in a carriage 50 which can slide for letter-spacing on square shafts 44, 48 forming part of a support 54 which is rocked about pivots 55a, 55b to swing the type-drum for impression. The pivot 55b is now arranged to slide in one end-plate of the support 54 and is provided with a spring 55b which normally holds a shoulder 55c on the pivot 55a in contact with an arm 14. The pivots 55b is threaded into an arm 15 and can be turned to adjust the spring. When the rack 61 is raised out of engagement with a feed-pinion 60 on the carriage, a spring drum 26 returns the carriage and the impact of the carriage on the support 54 is cushioned by the spring 16. A dashpot may be arranged between the carriage and the support or the arm 15. As applied to machines having a movable platen, the platen-carriage runs on rails or rollers on a spring-cushioned support similar to the support 54.
Patent GB-1193753-A (GB)
Title: Omnidirectional Cutting Body
Inventor: THEOBALD ELWIN
IPC: B23D71/00
Filed: 1968-02-05
Abstract: 1,193,753. Files. E. THEOBALD and J. A. COON. 5 Feb., 1968 [26 May, 1967], No. 5710/68. Heading B3L. A cutting tool, e.g. a file or rasp, comprises a hollow elongate member 10 having walls 12 in which arcuate lips are formed, one set 14 facing towards one end and another set 16 facing the opposite way, and arranged in staggered rows, so that the tool can cut in any direction. The lips have sharpened edges (18), (20), (Fig. 4, not shown) and depressed portions (22) adjacent the lips to allow cuttings to pass through. The specification includes a number of embodiments in which the member 10 is made up of three, four, five and six sides joined together to provide a variety of cross-sectional configurations having right angular, acute or obtuse, inward or outward, sharp or rounded corners and straight or concave walls.
Patent GB-525441-A (GB)
Title: Improvements in and relating to ferraris type of induction meters
IPC: G01R11/36
Filed: 1939-02-21
Abstract: 525,441. Supply meters. WIESENGRUND, M., and SZANTO, E. Feb. 21, 1939, No. 5737. [Class 37] An induction type meter having a two-pole current magnet 7 and a three-limbed voltage magnet 13 is constructed so that it may be overloaded to from three to four times its normal rated current without departing from permissible limits of accuracy. The threelimbed voltage magnet 13 is situated above the armature disc 12; the current magnet 7 being below the disc and nearer to the spindle than the magnet 13, so that the magnets 13, 7 are in staggered relation. The poles of the current core 7 are stepped or offset on the outside as shown in Fig. 3, so that the dimensions of the pole faces 14, 15 in the direction of movement of the disc 12 are small and the pole width d and the distance e between pole centres are also kept small. On one side of the current core is a magnetic shunt in the form of an angle iron, of which the flange 16 flat against the core forms the shunt, and the other flange has a central depression 19 so that the parts 20, 21 form extensions of the pole faces 14, 15. The shunt is secured to the core limbs by screws or rivets (not shown) with the interposition of a non- megnetic strip 17. The depression 19 serves to hold the counterpole 28, Fig. 5, of the voltage field, which is secured ot the outer limbs 22, 23 of the voltage magnet core by lugs 24, 25 engaging round the armature disc. Choke cores 30, 31 are located between each two adjacent limbs of the voltage core, gaps 32 being interposed between the choke cores 30, 31 and the outer limbs 22, 23.
Patent GB-722541-A (GB)
Title: Dipropionic acids of the heterocyclic series, and derivatives thereof
Filed: 1952-03-05
Abstract: N,N-Dipropionic compounds of the heterocyclic series are manufactured by a process wherein a heterocyclic compound which contains two NH- groups and at least one >C=O or >C=S group in the same ring is heated with acrylic acid or a substituted acrylic acid in which the substituent is a hydrocarbon radical or with amides, esters or nitriles of said acrylic acids, in a solvent together with caustic soda.  The invention also comprises dipropionic acids of the heterocyclic series containing two propionic acid groups attached by means of their b -carbon atoms to 2 nitrogen atoms of heterocyclic rings containing two -N=atoms and at least one >C=O or >C=S group. N-Substitution products obtained where a functional derivative of acrylic acid is employed as starting material are converted to the corresponding N,N1-dipropionic acids by saponification.  In examples: N,N1-di-b -cyanethyl ethylene urea is obtained by adding acrylonitrile to a warmed suspension of ethylene urea and sodium hydroxide in dioxane and recovering the product after acidifying the mixture which may be hydrolysed under acid or alkaline conditions to ethylene urea N,N1-dipropionic acid.  An N,N1-di-b -cyanethyl compound which may be converted to ethylene thiourea N,N1-dipropionic acid by hydrolysis is similarly obtained when ethylene-thiourea is employed as starting material and similar products are obtained when an ester of methacrylic acid is employed as starting material (1); N,N1-di-b -cyanethyl-2,5-diketopiperazine, which may be hydrolysed, e.g. with barium hydroxide solution to 2,5-diketopiperazine-N,N1-dipropionic acid, is obtained by adding acrylonitrile to a warmed suspension of 2,5-diketopiperazine and sodium hydroxide in dioxane.  The isomeric N,N1-di-b -cyanomethyl compound and the corresponding N,N1-dipropionic acid are obtained when 2,6-diketopiperazine is employed as starting material (2); N,N1-di-b -cyan-methyl-o-phenylene-urea is prepared by dropping acrylonitrile into a suspension of o-phenylene urea and sodium hydroxide in dioxane at elevated temperature.  The product may be hydrolysed to o-phenylene urea-N,N1-dipropionic acid by hydrolysis with barium hydroxide.  Analogous compounds are obtained when o-phenylene-urea is replaced by o-phenylene-thiourea.  Acrylic acid or, e.g., the ethyl ester of acrylic acid may be employed instead of acrylonitrile.
Patent GB-462776-A (GB)
Title: Improvements in paper and like containers
IPC: B65D3/20
Filed: 1936-02-26
Abstract: 462,776. Paper &c. containers. YGGER, A.F. KARLSSON-. Feb. 26, 1936, No. 5817. Convention date, March 16, 1935. [Classes 18, 66, 94 (i), and 94 (ii)] A paper &c. container with a generally cylindrical body, is formed from a rectangular blank A scored &c. as shown, to close which the triangular portions 26 . . . 33 are brought together in pairs and the top extensions 35 ... 43 brought together in a substantial straight line. The portions 35... 43 may each be provided with an extension, of similar form, which extensions are folded thereover, in the closed position, and are stapled &c. to seal the container. Alternatively, only two such extensions, stapled into place, may be used or the portions 35 ... 43 may be secured by a metallic U-strip 60 placed thereover. The U-strip may be weakened intermediate of its ends at 61 to allow of a portion being detached and folded back, Fig. 8, when the folds 28, 29 ; 26, 27, e.g., may be separated to form a pouring spout. The bottom of the container may be formed by inserting therein a downwardly flanged disc, which may be " stepped," of single or double thickness, the bottom edge of the body being turned inwardly and adhered over the flange.
Patent GB-724997-A (GB)
Title: Cropping and pruning machine
IPC: A01D46/04
Filed: 1953-03-03
Abstract: 724,997. Harvesting tea. GLEED, H. E. March 3, 1953 [March 7, 1952], No. 5862/53. Classes 6 (2) and 6 (3). A harvesting machine for use in tea-plantations comprises, a post 1 mountable upright on the ground and an arm 6 rotatable about the post and carrying harvesting or pruning tools. As shown, the post carries a spigot 24 at its lower end insertable into any one of a series of sockets 25 mounted in concrete blocks 26 at intervals around the plantation. On the post a sleeve 2 is slidable vertically and is fixed by a pin 5. The arm 6 is mounted on a bearing 7 slidable up and down the sleeve 2 and located by a pin 28. The arm 6 is hollow and accommodates a shaft passing through a bearing 18 and terminating in a worm 22 and handle 23. The opposite end of the shaft carries a bevel-gear 20 which engages a bevel-gear 21 on a shaft 11 rotatable on the arm 6 and carrying a sub-frame 9. The sub-frame comprises equal arms 9a, 9b carrying harvesting tools 14 (Fig. 3). Rotation of the handle 23 rotates the arms and the spindle 11, but by lowering the bearing 7 on the sleeve 2 until the worm 22 engages a worm-wheel 32, the arm 6 is also rotated. The tools 14 each comprise an open box 15 having a blade 16 at its forward lower edge. The box may be slotted longitudinally to allow it to be swept by a fixed wiper plate during rotation, the wiper being mounted on the arm. 6 so as to sweep the cut crop into a receptacle adjacent to the post 1. The boxes are detachable and replaceable by other cutting tools. In a modification, using driven tools, the arms 9a, 9b, which are non- rotary and tubular, house shafts by which the drive is transmitted to the tools at their ends, these shafts being driven by the gearing 20, 21. The arm 6 and the tools may also be driven by a motor (not shown). In a further modification, the sub-frame extends asymmetrically from the outer end of the arm and a stop is provided, so that when the arm is arrested the sub-frame swings in an arc about the end of the arm. For transport, the arms 9a, 9b may be folded together and the arm 6 may be detached from the post. The post may be mounted on a portable frame or may have a spike for insertion directly into the soil.
Patent GB-125203-A (GB)
Title: Improvements in Geared Turbine Systems.
Inventor: PARSONS CHARLES ALGERNON
IPC: B63H23/00
Filed: 1918-04-06
Abstract: 125,203. Parsons, Sir C. A., Cook, S. S., and Douglas, L. M. April 6, 1918. Toothed gearing. - In a double-reduction geared turbine installation wherein the steam thrust of a turbine A is partly taken up by a single helical pinion B engaging with a single helical wheel C and partly by a thrust block T, the end-thrust of the intermediate shaft D is taken up (a) by connecting it with the main shaft G by double helical pinions E, E', Fig. 1, and interengaging gear wheels F, F<1>, the two complementary pieces of which have different widths or angles; or (b) by making the secondary gears E, F, Fig. 3, also of the single helical type, and using a pivoted thrust block H, or, in place of the thrust block, inclining the teeth of the primary gear wheel and the secondary pinion at different angles. To avoid tilting of the intermediate shaft, a balance weight K, Fig. 1, may be provided as described in Specification 111,158. Other arrangements of the primary and secondary gears are described, and the gear members may be disposed as described in Specification 116,531. Specification 120,257 also is referred to.
Patent GB-812094-A (GB)
Title: Improvements in liquid blast circuit breakers for high voltage currents
IPC: H01H33/85
Filed: 1957-02-21
Abstract: 812,094. Liquid-blast switches; actuation of switches. CIRILLI, B. P. J., and CIRILLI, M. J. A. Feb. 21, 1957 (Feb. 24, 1956], No. 5933/57. Class 38 (5). In a switch, liquid, e.g. oil, is supplied from an external source of liquid under pressure through a pipe 11 to a nozzle 17, so that the liquid jet from the nozzle impinges against a cup-shaped member 9 secured to a movable contact 4 which is opened by the jet. The movable contact may be closed by a liquid jet issuing from a further nozzle 24 and impinging on a further cup-shaped member 8 also secured to the movable contact 4. The pipe 11 sup plies a space 16 from which extend pipes 11a, 11b, Fig. 2, which supply a series of angularly and axially spaced passages or nozzles extending across the path of the movable contact so that the arc drawn between the contacts is subjected to a series of transverse liquid blasts.
Patent GB-1032685-A (GB)
Title: Photographic materials
IPC: G03C5/60
Filed: 1965-02-11
Abstract: 1,032,685. Vesicular image forming material. EASTMAN KODAK CO. Feb. 11, 1965 [Feb. 11, 1964],No.5966/65. Heading G2C. Vesicular images are prepared by exposing a supported layer of water-insoluble thermoplastic binder having a permeability constant for N 2  of between 10<SP>-11</SP> and 10<SP>-15</SP> cgs. units, which contains minute particles of wax dispersed therein and a compound which produces N 2  on photolysis. Suitable binders are vinyl, vinylidene, acrylate, methacrylate, acrylonitrile, maleic, and difluorethylene polymers and copolymers. Suitable waxes are hydrogenated oils, natural waxes, hydrocarbons, fatty esters, acids, alcohols and ketones. Specified photolysable compounds are azido and diazo compounds which may be mixed with various specified optical sensitizers. The light sensitive layer may also be nucleated by the preflashing treatment of Specification 956,337. In Example (1) a layer of vinylidene chloride/acrylonitrile copolymer, poly (methylmethacrylate), 1-hydroxy-2-carbazido naphthalene, hydrogenated oil wax, and sodium lauryl sulphate (a surface active agent) supported on poly-(ethylene terephthalate) is heated, exposed to u.v., and developed in boiling water.
Patent GB-492808-A (GB)
Title: Improvements in drawing frames, roving frames and like textile frames
IPC: D01H5/46
Filed: 1937-02-27
Abstract: 492,808. Pressing-roller mountings for drawing and roving frames. FRASER, G. S., and FRASER, N., and FRASER, (nÚe SCOTT), J. J., FRASER, N., FRASER, G. S., and KYD, J. A., [Representatices of FRASER, J.]. Feb. 27, 1937, No. 5971. [Class 120 (ii)] In a drawing, roving, or like frame, means for lifting the slip or pressing retaining rollers 7, Figs. 1 and 2, comprises for each roller a lever 4 having a laterally projecting pin 5 which enters with substantial clearance the axial bore 6 in the slip roller, the latter being normally free to co-operate with the retaining rollers 9, 10 but being lifted clear thereof, as shown dotted, Fig. 1, when the lever is rocked by the handle 4a in the direction A. Pairs of levers 4 are pivotally mounted on the fixed rod 1 which supports the sliver guide brackets 2 and are spaced apart by a stop bracket 3. A snug 8 is provided on each lever 4 and in the lowered position engages a stop 3a so that the pin 5 is clear of the wall of the bore 6 while in the raised position the snug 8 engages a stop 3b.
Patent GB-910182-A (GB)
Title: Improvements relating to valve chest assemblies for steam turbines
Inventor: LONDON JOSEPH CLARE
IPC: F01D13/02
Filed: 1958-02-25
Abstract: 910,182. Steam turbines. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. Feb. 23, 1959 [Feb. 25, 1958], No. 6090/58. Class 110 (3). In a steam-turbine power plant the steam pipe and valve chest assembly comprises a rigid structural unit anchored to the turbine foundation vertically below the turbine shaft axis by a slidable key 6, or the equivalent, allowing the unit to expand transversely outwards from the anchor means, supporting means 4 in a horizontal plane containing or closely adjacent to that of the shaft axis, and means permitting expansion of the rigid unit with the turbine cylinder 1 in an axial direction. The turbine cylinder expands axially from an anchor point A and the brackets 4 have keys 5 slidable in keyways transverse to the turbine axis. In an alternative embodiment, a single valve chest is mounted below the turbine cylinder 1 (Fig. 4), and is anchored by pin-andsocket means 10 and a key 6 which together prevent overall transverse movement. The key 6 allows for axial expansion of the chest with the turbine and supports 4 allow for axial and transverse expansion outwards from the anchor 6.