baber/WOPTO huggingface dataset:
Patent GB-1510118-A (GB)
Title: Spark-gap light sources
IPC: G03B15/16
Filed: 1975-10-24
Abstract: 1510118 Lamps DEFENCE SECRETARY OF STATE FOR 24 Oct 1975 [14 Aug 1974] 35816/74 Heading F4R [Also in Division H1] A spark-gap light source comprises two coaxially aligned elongate electrodes 10, 12 arranged with a spark gap 14 therebetween and with a capacitor 18 connected across the spark-gap, the capacitor, in use, being triggered to discharge across the spark-gap, and a fibre optic light guide, e.g. 30 or 44, is arranged with its light input end adjacent the spark-gap. The light output from the remote end of the guide of a number of such spark-gap light sources may be combined into a single common output guide 73, as shown in Fig. 2, or the light output from a single source may be split by dividing the fibre bundle output guide, Figs. 4 and 5 (not shown). The light source may be used in shadowgraph photography or to provide stereoscopic photographs, e.g. for recording the passage of bullets or the study of nozzle sprays. The light source comprises, Fig. 1, within envelope, 34 filled with argon and hydrogen to a pressure of 0À33MN/m<SP>2</SP>., a lower electrode 12 supported on plate 16 on top of a 0À03Mf capacitor 18 and an upper electrode 10 in the form of a hollow outer cylinder 26 insulated from a hollow inner cylinder 28 acting as a trigger electrode, with a fibre optic guide 30 extending within the cylinder 28. The upper electrode 10 is supported on metal plate 24 and is connected to the lower end of capacitor 18 by lower plate 20 and six symmetrically disposed metal pillars 22. A second fibre optic light guide 44 may be disposed adjacent the spark gap 14 extending at right angles to the guide 30 with a lens system 52 being provided to focus light into the guide 44.
Patent GB-445129-A (GB)
Title: Improvements in or relating to electrical switch plug locking mechanism
IPC: H01R13/707
Filed: 1934-12-14
Abstract: 445,129. Plug-and-socket couplings. WATSON, A., 84, Edward Street, Parade, Birmingham. Dec. 14, 1934, No. 35884. [Class 38 (i)] In a combined switch and plug coupling wherein the switch cannot be operated unless the plug is in, the earthing pin socket C is normally so placed that the locking tongue E cannot pass. When the plug is inserted however, the pin raises the socket to allow the tongue to pass into the slot D in the earthing-pin when the switch is operated. The socket may be detained in either of its extreme positions by a pair of bent springs mounted on the socket and co-operating with the socket guide J.
Patent GB-324754-A (GB)
Title: Improvements relating to holders for sliding window sashes
IPC: E05F11/38
Filed: 1929-07-15
Abstract: 324,754. Webber, H. J., and Skenfield, H. S. July 15, 1929. Vehicle-window closing apparatus.-A, window 1 supported by links 5, levers 3, and a helical spring 2, is adjustably supported by threading the ends of the spring 2 on oppositely-threaded mounts 6, 7 connected to the levers 3. The levers are provided with a series of holes 15 for adjustment of the pivot.
Patent GB-1003200-A (GB)
Title: Electro-magnetically operable devices
Inventor: SEVERN ARTHUR CHARLES
IPC: H01H50/20
Filed: 1961-10-06
Abstract: 1,003,200. Electromagnetic relays. JOSEPH LUCAS (INDUSTRIES) Ltd. Sept. 27, 1962 [Oct. 6, 1961], No. 35982/61. Heading H2B. A stem 13, restrained from rotation by cooperation of its shoe 14 with an abutment 7a, is screwed into a plunger armature 15 which is normally restrained from rotation by cooperation of its non-circular end 16 with a complementary shaped recess 20 in a cover 18. The position of the shoe 14 relative to the coil 10 when the coil is energized is adjusted by removing the cover 18 and rotating the armature on the stem 13. A spring 17 urges the armature to the right so that the shoe 14 abuts a magnetic plate 8 to which a U-shaped magnetic frame 9 is secured. The shoe 14 actuates one or more change-over contact sets.
Patent GB-1042488-A (GB)
Title: Tripeptide derivatives
Inventor: LAIRD ALAN HODGSON
IPC: C07K5/083
Filed: 1964-09-02
Abstract: L - methionyl - L - aspartyl - L - phenyl-alanine amide is prepared by reacting an activated N-protected L-methionine derivative with either L-aspartyl-L-phenylalanine amide or with an L-aspartyl-L-phenylalanine alkyl or aralkyl ester, ammonolysing the product of the second process to give the product of the first and removing the protecting group.
Patent GB-1321753-A (GB)
Title: Conveyors for bulk material
IPC: B23Q11/00
Filed: 1971-07-30
Abstract: 1321753 Reciprocating conveyers K WISSMANN 30 July 1971 [10 Aug 1970] 36012/71 Heading B8A A conveyer particularly suitable for metal swarf comprises a trough 1 having a hemispherical end wall 6 provided with a tube 10 which supports an hydraulic piston-cylinder unit 12. The piston-rod 13 is connected to a rod 2 on which are mounted pushers 3, 4. In addition to the movement of the swarf to the left of Fig. 1, swarf is pushed to the right by the end 5 of the rod 2 and is returned, due to the wall 6, for entrainment by the pushers 3, 4. In Fig. 3 (not shown) the cylinder (12) is mounted at the top of the wall (6) so that the wall is substantially unobstructed. In Fig. 4 retraction of the piston cylinder unit provides the working stroke of the conveyer rod 2. The rod may be free to move laterally and vertically in the trough.
Patent GB-1314742-A (GB)
Title: Method of producing an abrasion-proof granular sodium perborate tetrahydrate of low bulk density
IPC: C01B15/12
Filed: 1970-07-24
Abstract: 1314742 Sodium perborate tetrahydrate KALI-CHEMIE AG 24 July 1970 [25 July 1969] 36109/70 Heading C1A Abrasion-resistant, granular sodium perborate tetrahydrate of low bulk density is produced by adding water to molten sodium perborate tetrahydrate, continuously cooling and mixing the resultant mixture, allowing the mixture to crystallize as quickly as possible while continuing mixing and cooling and drying the product, which may contain at least 15% by weight of water. The quantity of water that should be added to the perborate melt may be reduced, without raising the bulk density of the product, by addition of surface active substances and/or phosphates in amounts of at least 0À2% by weight and/or silicate in amounts of at least 1% by weight, related to the weight of water introduced. Crystallization, which may be initiated spontaneously by the addition of perborate dust to the perborate-water mixture, may be complete within 30 minutes. A stabilizer for active oxygen, e.g. magnesium sulphate may be added to the melt. The resulting product may be subject to a shaping process, either in a conventional granulating machine or in a granulating machine as described in Specification 1,313,783 before drying, for example, at a temperature of from 40 to 60 C., e.g. in a fluidized bed. Mean grain sizes are specified in the examples subsequent to shaping and prior to drying.
Patent GB-814771-A (GB)
Title: Grid support for fluidized solids vessels
IPC: B01J8/44
Filed: 1956-11-27
Abstract: <PICT:0814771/III/1> An apparatus for the fluidized treatment of solids with gases or vapours comprises a closed chamber 1 provided with a foraminous plate 9 on which the solids rest, and which is supported from above by a gasimpervious circular member 10 secured to the inner wall of the chamber and projecting inwardly to embrace the periphery of the foraminous plate.  The supporting member has a substantial vertical portion, the upper end of which is welded to the chamber wall and provides for expansion laterally or vertically.  The main part of the support is embedded in an insulating layer 11 to relieve stressing at high temperatures. The apparatus may be applied to roasting ores, drying wet solids, pyrolytic treatment of hydrocarbon oils, or catalytic reactions using a fluidized bed, including regenerating spent catalysts.  A plurality of vertically spaced grids may be used, with air injection between each pair.
Patent GB-1435245-A (GB)
Title: Multicolour offset printing press with means for perforating or grooving sheets
IPC: B41F30/04
Filed: 1974-08-16
Abstract: 1435245 Printing and perforating apparatus ROLAND OFFSETMASCHINENFABRIK FABER & SCHLIECHER AG 16 Aug 1974 [16 Aug 1973] 36252/74 Heading B6C [Also in Division B4] A multi-colour offset printing press is provided with perforating strips pasted on the blanket of an offset cylinder co-operating with a demountable and exchangeable foil stretched around an impression cylinder. The invention is particularly applicable to 5-cylinder printing units, Fig. 1 (not shown) where one blanket cylinder (4) Fig. 2 (not shown) is provided with longitudinal perforating strips (6) Fig. 3 (not shown), and the second blanket cylinder 7 has transverse strips (9). The foil 13 replaces a copper plate which is the printing impression surface; sheets 14 being printed or perforated are held between bar 18 and pivotable grippers 17; the bar 18 may also pivot about shaft 33 to allow the end 22 of foil 13 to be inserted into a fastening device 19, comprising a spring- loaded angle iron 23 bearing against the bottom of cylinder gear 15 and provided with a hook 25 acting on a reinforcing bar 21 of foil 13. The other end 28 of foil 13 is tensioned by shaft 30.
Patent GB-1120143-A (GB)
Title: Variable force oscillator
Inventor: AUSTIN CURTIS LEON
IPC: B06B1/16
Filed: 1965-08-24
Abstract: 1,120,143. Vibratory mechanisms. GENERAL MILLS Inc. 24 Aug., 1965, No. 36328/65. Heading F2X. [Also in Division B8] A mechanism for vibrating an apparatus such as a conveyer, screen or gyratory sifter comprises at least one pair of eccentric weights 74, 76 one of which is rotatably mounted on a shaft 60 while the other is keyed thereto and means including a differential gear 114 for altering the phase relationship of the weights. In the preferred embodiment, two pairs of eccentric weights in the form of toothed gears are employed, the gears 74, 94 being in mesh and driven from a motor 42a while the gears 76, 96 are similarly driven from a second motor (not shown). A third motor (not shown) is connected by a belt drive 154 to the differential gear 114 whose output shafts 124, 132 are connetted by bevel gears 144, 146 to the shafts carrying the eccentric weights so that they may be rotated with respect to each other to vary the phase relationship. The casing of the mechanism is partly filled with oil and carried by a sub-frame which is both supported on springs and carries the conveyer or screen on further springs. In a further embodiment, eccentric weights (such as 180, Fig. 9, not shown), are formed separately from trains of spur gearing or belt drives (230, Fig. 10, not shown) between the shafts which may rotate in the same or opposite directions. A further construction employs a single pair of toothed gear type eccentric weights (234, 236, Fig. 11, not shown) adjusted relatively to each other by a differential (248) one weight being adjusted through an intermediate gear (252). A belt drive may replace the latter and Fig. 13 (not shown) illustrates a construction, similar to that of Fig. 3, in which eccentrically weighted pulleys connected by belts replace the intermeshing toothed gears. A helical conveyer vibrated by the latter mechanism is supported by vertical spring legs (268) and oblique springs (278).
Patent GB-1099223-A (GB)
Title: Compressors
Inventor: CLARKE MICHAEL EDWARD
IPC: F04B25/00
Filed: 1964-09-04
Abstract: 1,099,223. Reciprocating electric motors. BRITISH OXYGEN CO. Ltd. Aug. 12, 1965 [Sept. 4, 1964], No. 36451/64. Heading H2A. [Also in Division F1] In a two-stage reciprocating piston compressor having first and second stage pistons 19, 20 slidable in respective cylinders 5, 6, each piston is provided with a tubular extension 21 surrounded by a magnet 28 and each has a coil 31 or 32 whereby when alternating current is supplied either to the magnets 28 or to the coils 31, 32 or to both, the pistons are reciprocated against the action of a coiled return spring 26 secured at one end to the extension 21 and at the other end to a barrier plate 23. The magnets 28 may be energized by A.C. or D.C. or may be permanent. Similarly, the coils 31, 32 may be energized by A.C. or D.C. The two stages are separated by the barrier plate 23 to which the flanges 25 of a pair of polepieces 24 are secured. Each polepiece 24 extends axially through an aperture 4 formed in a respective end plate 3 to form an annular gap for one of the coils 31 or 32. The leads 33 to the coils are wound round the turns of the springs 26 and pass out of the compressor through bores 35 in the barrier plate 23. The plate 23 may be omitted whereby a single spring may replace the two springs 26.
Patent GB-1157678-A (GB)
Title: Preparation of Boric Oxide
IPC: C01B35/10
Filed: 1966-08-15
Abstract: 1,157,678. Boric oxide. UNITED STATES BORAX & CHEMICAL CORP. 15 Aug., 1966 [28 March, 1966], No. 36475/66. Heading C1A. As a preliminary step in the preparation of a feed mixture for the production of boric oxide, when an alkali metal borate pentahydrate is mixed with sulphuric acid containing at least 78% by weight H 2 50 4  there is added to the borate at least 25% by weight of water. The preferred borate is sodium tetraborate pentahydrate, and the water may be added by spraying the solid with water, or by mixing with the pentahydrate up to 150% by weight of the decahydrate. A preferred amount of water is 2% to 15% by weight of the sodium tetraborate pentahydrate. The sulphuric acid used may have a concentration of at least 90% by weight H 2 SO 4  and may be present in an equimolar amount, but preferably a slight excess e.g. 10% by weight is used. The free flowing dry-appearing granular product may be produced by spraying the acid on to the borate whilst stirring. The resultant mix is preferably dried at a temperature of up to 300 C. Boric oxide is obtained from the mixture by heating it to a temperature of at least 750 C. to form a two layer molten product and separating the upper boric oxide layer.
Patent GB-423065-A (GB)
Title: Improvements in or relating to the preparation and treatment of textile materials
IPC: D01D10/04
Filed: 1933-12-27
Abstract: Yarns, threads, filaments, &c. are coated with water-resistant wax or wax-like materials in such a manner that a rough surface is produced. This may be effected by rapid cooling of the wax from a molten condition or rapid precipitation from solution by evaporation of a solvent.  The waxed yarns &c. so obtained are specially suitable for covering wire with an insulating coating. Suitable waxes are amorphous paraffin wax from petroleum or ozokerite, crystalline paraffin wax, beeswax, carnauba wax, materials such as cetyl alcohol or the esters or ethers of higher fatty alcohols.  To reduce combustibility substances such as beta chlor naphthalene triphenyl phosphate or tricresyl phosphate may be added.  The material is applied to the travelling yarn by devices such as wicks, discs <PICT:0423065/IV/1> or rollers and the yarns are wound, with or without twist, on to suitable packages.  In order to accelerate cooling of the yarn it may be contacted with a cold metal surface, a wick supplying cold liquid or a blast of cold gas.  In a device for applying wax shown in Fig. 1, filaments passing from a spinning chamber 3 to a winding device 5 pass over a driven roller 6 which dips into a bath 9 of wax kept molten by a steam coil 11.  In another arrangement, a yarn or filament is passed over a disc rotating about an axis parallel to the direction of movement of the yarn and dipping into heated wax, and thence over a wick dipping into a cooling liquid or a liquid such as amyl acetate which is a solvent for wax at elevated temperature though not at room temperature.
Patent GB-522636-A (GB)
Title: Method of producing air-foam for use for fire extinguishing, and apparatus therefor
IPC: B01F5/04
Filed: 1938-12-15
Abstract: 522,636. Making foam. CONCORDIA ELEKTRIZITATSAKT.-GES. Dec. 15, 1938, No. 36620. Convention date, Nov. 9. [Class 47 (ii)] In making foam by the intimate mixture of a foam-forming solution and a gas, the components are spread, by baffle means, into thin, superimposed films. As shown, liquid under pressure entering by a pipe a is spread by a baffle c and issues as a film through the annular gap d between the baffle and the wall of the nozzle b. Air induced at h issues as a film through the gap f between the baffle c and a second baffle e. The nozzle h is tapered. In a modification, the film of liquid is enclosed by a second film of air admitted between the pipe a and nozzle b. In another modification, water is spread by the baffle c and foaming agent by the baffle e. In another modification, the films are formed by concentric, annular passages of cruciform or other extended section.
Patent GB-364780-A (GB)
Title: Improvements in or relating to processes and apparatus for the production of artificial filaments
IPC: D01D5/00
Filed: 1930-12-05
Abstract: <PICT:0364780/IV/1> <PICT:0364780/IV/2> In apparatus for the production of artificial threads of cellulose, cellulose derivatives, gelatine, rubber, or the like, by the action of an electric field, the pole which attracts the threads produced is united with a movable thread-receiving device which supports the threads, in such a way that the device itself, as a conducting body, exerts the attracting power on the threads. The spinning solution may be introduced into the electric field by means of a nozzle or by a serrated wheel.  In the apparatus shown in Fig. 1, the poles which produce the field are connected to a serrated wheel f dipping into a bath of spinning solution c, and a metal ring g.  When the wheels f, g are caused to rotate, spinning solution which is removed from the bath c by the points on the wheel f is sprayed out under the action of the field and caused to lie longitudinally on the periphery of the ring g.  The filaments may be dried and stretched by the devices m and k, respectively. Modifications of the apparatus are described in which the axes of rotation of the bodies g, f are in various relative positions. For producing the electrical field, direct, pulsating direct, alternating or multiphase current may be used.  The apparatus may be applied to the spinning of solutions of cellulose esters or ethers in the common solvents, with or without plasticizers, or to cellulose derivatives in reaction media, for example, acetic acid or other fatty acids.  Mixed threads may be obtained containing, for example, rubber or caoutchouc on the one hand, and cellulose derivatives on the other hand, by using two separate vessels c next to, or behind one another.  The Specification as open to inspection under Sect. 91 (3) (a) refers also to an apparatus comprising a lever arm t, Fig. 8 (Cancelled), capable of rocking up and down by the movement of an eccentric disc s, and which dips intermittently at its potential point v into the spinning solution contained in c.  The filaments are collected on a frame w which is charged with a potential opposite to that of the point v.  This subject-matter does not appear in the Specification as accepted.
Patent GB-1365903-A (GB)
Title: Method of and apparatus for controlling weft tension in a jet loom
IPC: D03D47/00
Filed: 1971-08-05
Abstract: 1365903 Fluid jet looms TEIJIN Ltd 5 Aug 1971 [7 Aug 1970 15 Dec 1970 16 Dec 1970] 36848/71 Heading D1E A fluid jet loom has a fluid, e.g. liquid, nozzle at the exit side of the shed which entrains the weft end and is movable to the fell during beat-up. In Figure 1 after the weft is picked a liquid jet 7, attached to the baulk 4 of the reed, comes forward with the reed and entrains the weft end, a false selvedge 5 being subsequently severed. Embodiments of jets 7 are described in detail. In Figure 6 the entraining jet 19 is movable independantly of, and in advance of the reed. A stop motion, Figure 10, is described wherein the weft 6 tilts an arm 30 to allow operation to continue. Absence of weft allows contacts 35, 36 to remain closed and an amplified signal to stop the loom.
Patent GB-508769-A (GB)
Title: Improvements relating to bore-hole pump actuating mechanisms
IPC: F04B47/00
Filed: 1938-12-19
Abstract: 508,769. Actuating reciprocating pumps and compressors. LEE, HOWL, & CO., Ltd., HOWL, C., HOWL, R.. and SOWDEN, W. R. Dec. 19, 1938, No. 36878. [Classes 8 (i) and 102 (i)] Apparatus for actuating a reciprocating bore hole pump comprises a plunger g, adapted for connection to the upper end of a pump rod, and having a piston h fitting the interior of a guide f and a cap m fitting the exterior of the guide f. A bell crank o is connected to the cap m and is reciprocated by a crank pin s driven by an electric motor through reduction gearing t. An outlet k conducts away leakage into the guide f. Water may be delivered to a tank to which air under pressure is also supplied by a compressor having a piston rod x pressed by a spring y against the cap m.
Patent GB-1315670-A (GB)
Title: Pyrolysis of nickel salts of phosphonic acid monoesters
IPC: C07F9/02
Filed: 1970-07-30
Abstract: 1315670 Pyrolysis of nickel salts of phosphonic acid monoesters CIBA-GEIGY AG 30 July 1970 [31 July 1969] 36947/70 Heading C2P [Also in Division C3] A pyrolysate is prepared by heating a compound of the Formula I where R 1  and R 2  are each C 1-5  alkyl or 1-methylcyclohexyl, R 3  is C 1-5  alkyl, and x is 0À5 to 3, at 160 to 300 C. and removing the constituents volatile at the temperature of the heat treatment. The heating may be carried out in the presence or absence of an inert solvent. The pyrolysates produced may be used as stabilizers for synthetic polymers (Division C3).
Patent GB-1099948-A (GB)
Title: Hydraulically operated pruner
Inventor: ROBINSON ANTHONY JOHN METCALF
IPC: A01G3/033
Filed: 1965-08-27
Abstract: 1,099,948. Pruning appliances. NEW DRAULICS Inc. Aug. 27, 1965, No. 37047/65. Heading A1E. [Also in Division F1] A hydraulically operated pruning shear comprises a piston 38 slidable in a cylinder 34 and on a fixed piston 120 forming an extension of a valve body 32 closing the cylinder 34, and a valve 98 normally open to provide a bypass path for pressurized fluid continuously supplied to the body 32 by a pump and operable to cut off the bypass path causing pressure to build up in a supply passage 114 to operate the piston 38. A piston rod 46 is secured to the piston 38 and has an extension 58, Fig. 4, slidable in a tube 54 carrying a fixed blade 20 to move a pivoted link 66 connected to the movable blade 22. The piston 38 has a central pressure face 130 pressurized directly from the passage 114 through an axial passage 116 in the fixed piston 120 to cause a high speed, low force stroke thereof to actuate the shears for cutting small diameter twigs and a surrounding annular surface adapted to be pressurized simultaneously with the central face 130 by operation of a two-position rotary control valve 134. The control 134 connects the supply passage 114 to a chamber 126 having the annular face of the piston 38 disposed therein, whereby the piston performs a low speed, high force stroke to actuate the shears for cutting large diameter twigs. The valve 98 comprises a plunger 100 movable by a trigger 28 against the action of a spring 102 to interrupt the bypass path through ports 94, 108. If the pressure in the supply passage 114 exceeds a predetermined value, e.g. at the end of a stroke, a pressure relief valve 154 opens and a restricted flow of fluid passes from the passage 114 and pressurizes a chamber 160 above the plunger to cause it to re-establish the bypass path and thus unload the piston 38 which is returned by a spring 62.