baber/WOPTO huggingface dataset:
Patent GB-1112554-A (GB)
Title: Oxidation of olefinically unsaturated compounds
IPC: C07C391/00
Filed: 1965-07-28
Abstract: Olefinically unsaturated compounds are oxidized to unsaturated alcohols or esters thereof by compounds in which a selenium, tellurium or sulphur atom has attached to it both organic groups and an oxygen atom.  The oxidizing agents may be prepared by oxidizing an organic selenide, telluride or sulphide with peracetic acid or regenerated by oxidizing the reaction product of an olefine and an oxide of selenium, tellurium or sulphur.  The olefines may be aliphatic or substituted with aromatic or other substituents and the oxidation may be carried out in a liquid solvent such as mono- or polycarboxylic acids, in particular, acetic or pivalic acids, or water, aliphatic alcohols, benzene, nitrobenzene, pyridine, and aliphatic carboxylic acid esters.  Examples describe the preparation of a -methallyl acetate using 2-butene and bis-(1 - methyl - 2 - acetoxypropyl) selenide; alkylacetate using propylene and a selenide prepared as above; a -methylallyl acetate using 2-butene and the reaction product of di-phenyl sulphoxide and 2-butene; vinyl acetate from ethylene and the oxidation product of bis(2-acetoxyethyl) selenide and peracetic acid; a -methylallyl acetate from 2-butene and diphenyl selenoxide; and a -methylallyl acetate from 2-butene and bis-(1-methyl-2-acetoxypropyl) selenide.
Patent GB-387788-A (GB)
Title: Improvements in electric contact devices
IPC: H01H1/52
Filed: 1931-11-21
Abstract: 387,788. Fuse contacts. HENLEY'S TELEGRAPH WORKS CO., Ltd., W. T., 11, Holborn Viaduct, London, and BREEZE, H. W., Kingswood, Upper Wrotham Road, Gravesend, Kent. Nov. 21, 1931, No. 32309. [Class 38 (v).] In order to permit the cramping into engagement of two or more contacts of the blade and clip type, a wedge member formed on or rigidly attached to the outside of one contact piece co-operates with an inclined tightening member which is adapted to slide over the wedge member and which is connected to an abutment member bearing against the outside of another contact piece. Fig. 1 shows the cramping arrangement applied to contacts 1, 2 which are intended to engage a central contact piece (not shown). The contact 1 has a wedge-shaped outer face 10 for engagement with an inclined tightening member 3 which is connected by a bridge 5 to an abutment 4 bearing against the flat outer face 11 of the contact 2. The bridge 5 is adapted to be moved vertically in slots 6, 7 formed in the contacts 1, 2 by a screw 8 whereby the clamping pressure exerted by the tightening member 3 on the wedge 10 may be varied. The screw 8 is retained in position by collar 9 which engages the upper edges of the slots 6, 7. In a modified construction both contacts 1, 2 have wedge-shaped outer faces and the abutment 4 is inclined to engage with the wedge of the contact 2. Figs. 2 and 4 show a disconnecting link embodying this construction and comprising side members 11, 12 formed with the tapering cross-section shown in Fig. 4. Tightening members 13, 14, operated by screws 20, are provided at each end of the link and engage the tapered portions of the side members 11, 12. The side members are loosely mounted on a pin 17 and are urged together by a spring clip 15. In modified constructions the side members 11, 12 are of flat cross section and separate wedge-shaped surfaces are permanently or detachably-secured thereto, or the material at the edges of the slots 6, 7, Fig. 1, may be bent outwardly to form tapering projections on which the tightening member may work.
Patent GB-1404173-A (GB)
IPC: D06P1/62
Filed: 1972-07-11
Abstract: 1404173 Dyestuff compositions IMPERIAL CHEMICAL INDUSTRIES Ltd 6 July 1973 [11. July 1972] 32348/72 Heading D1B Acid dye compositions are prepared which contain 5 to 99% by weight of a sparingly soluble acid dye in the form of its sodium salt and 95 to 1% by weight of a salt of the condensate of formaldehyde with naphthalene sulphonate and benzyl chloride. Preferably the dye has a single sulphonic acid group or carboxylic acid group and additional anionic surface active agents may also be present. The compositions may be used for dyeing nitrogenous fibres.
Patent GB-915812-A (GB)
Title: Improvements in electron-guns
Inventor: MURPHY BERNARD THOMAS
IPC: H01J29/58
Filed: 1959-09-23
Abstract: 915,812. Electron beam apparatus. MULLARD Ltd. Sept. 23, 1959, No. 32396/59. Class 39 (1). An electron gun comprises a ferromagnetic focusing member 3 and a beam forming electrode 9 formed as a metal coating deposited on the ferromagnetic member. The ferromagnetic member may be an alloy or a ferrite and the metal deposit may be formed by plating or spraying. The deposit may follow the profile of the ferromagnetic member or may be built up to a different profile and machined. The magnetic circuit includes an annulus 31 sealed to the envelope 1. In another embodiment the central portion of the ferromagnetic member is dish shaped and the beam forming electrode 10 is also composed as a metal deposit on a ferromagnetic member. Strips of metal may be provided on the ferromagnetic members to provide electrical connections.
Patent GB-354631-A (GB)
Title: An improved method of and apparatus for weighing and filling feathers or down into quilts
IPC: G01G21/00
Filed: 1930-10-29
Abstract: 354,631. Upholstery stuffing-apparatus. WALLMEYER, A., 25, Klosterweg, Eisenach, Germany. Oct. 29, 1930, No. 32480. Convention date, Feb. 28. [Class 52 (iv).] In an apparatus for weighing and discharging feathers or down into quilts, a receptacle 5 for the reception of a supply of feathers is arranged upon a weighing machine 2 and is yieldingly connected with a conveying and introducing device (such as a blower 13 and a filling pipe 15) the operation of which is automatically terminated by the weighing machine when a predetermined weight of feathers has been filled into the quilt or into a prequilted web of the latter. The receptacle 5 may contain revolving beaters rotated by an electric motor 10. The feathers are withdrawn through a telescopic joint 11 yieldingly connected to the blower 13. The blower is secured to the underside of the work-table 16 and driven by a motor 14. The filling pipe 15 is adjustable in any desired direction over the table. In using the apparatus, the quilt case is placed on the table 16 and the filling pipe 15 inserted. A quantity of feathers is filled into the receptacle 5 and the weighing machine is counterbalanced by the sliding poises 3, 4. The poises are set back by an amount corresponding to the weight of feathers to be filled into the quilt and a lever key switch 18 is placed in position to start the motors 10, 14 and feed the feathers into the quilt. When the requisite weight of feathers has been supplied the movement of the weighing machine to equilibrium position displaces the switch and stops the motors.
Patent GB-801520-A (GB)
Title: Separation of plutonium
IPC: C01G56/00
Filed: 1945-11-30
Abstract: Plutonium is separated from an aqueous solution by forming a water-insoluble complex of the plutonium with cupferron.  The complex may be allowed to precipitate or may be extracted into a water-immiscible organic liquid phase; suitable organic liquids are chloroform, benzene, toluene, xylene, ethyl ether, ethyl acetate, carbon tetrachloride, aniline and hexyl alcohol.  The plutonium is preferably in the tetravalent state but a complex may also be formed from trivalent or hexavalent plutonium.  In a preliminary separation of plutonium from neutron-irradiated uranium, the uranium is converted to a nitrate solution, the plutonium reduced by means of ferrous iron or hydroxylamine, and then adsorbed from solution on columbic oxide, silica gel, bismuth phosphate, lanthanum fluoride, or resinous condensation products of phenol sulphonic acid and formaldehyde.  Bismuth phosphate or lanthanum fluoride may be precipitated in the solution to act as carrier for the plutonium, e.g. as described in Specification 798,685.  The plutonium is removed from the adsorbent by extracting with 5-10 per cent nitric acid and then separated by forming the cupferron complex.  In examples, the cupferron complex is prepared from nitric acid solutions containing plutonium in tetravalent or hexavalent form and extracted with chloroform or ethyl ether.  The solutions treated may contain fission products or sodium, lithium or magnesium.  Plutonium sulphate solutions having different pH values are reacted with cupferron and extracted with chloroform.
Patent GB-1401964-A (GB)
Title: Method of machining articles and apparatus for carrying out  that method
IPC: B23B5/00
Filed: 1971-07-10
Abstract: 1401964 Machining special articles; grinding; rolling E J PRICE 10 July 1972 [10 July 1971] 32510/71 Headings B3T B3D and B3M In a method of machining an article, such as a piston, the article is mounted for rotation about a first axis and a machining tool is moved about an arcuate, part-circular path about a second axis, the first axis lying between the arcuate path and the second axis, the machining tool being moved into engagement with the rotating workpiece, the speed of rotation of the article and the movement of the tool along the arcuate path being so arranged as to completely machine the article during a single movement of the tool along its arcuate path. In the embodiments described, the article 1 is supported on a freely rotatable mandrel assembly 16 and two cutting tools 30, 31 are mounted on an annular rotatable tool carrier 23 which is driven from a motor 27 by belt 26. The article is driven by friction from a drill press 5 which engages the article and rotates both article and mandrel, the mandrel being biased by a spring 18 axially to maintain driving engagement between the member 20 and the article 1. The relationship between the axes of the tool carrier and the workpiece article permit progressive engagement of the tools with the article as the operation is carried out. Although friction drive between the drill press and article are shown alternative means such as a collet type chuck may be used. The tools shown in Fig. 2 are form tools 30, 31 to produce the required surface form on the article. However, alternative tools such as abrasive member(s) or knurling tools may be used.
Patent GB-841478-A (GB)
Title: Improvements relating to contact mechanisms for repeatedly opening and closing electrical circuits
Inventor: BROWN WALTER HENRY
IPC: B60Q1/38
Filed: 1955-11-14
Abstract: 841,478. Fluid actuation of switches. TRICO-FOLBERTH Ltd. Nov. 14, 1956 [Nov. 14, 1955], No. 32514/55. Class 38 (5). A switch for controlling vehicle flashing light direction indicators comprises contacts operated by a pneumatic motor. The fixed contacts 4a, 5a are adapted to be bridged by a contact 3 resiliently mounted on a piston 2 which is connected at 7 to a toggle lever 8 pivoted to the base at 9. The second lever 10 of the toggle is also pivoted at 9 and is connected at 11 to a valve mechanism, the points 7, 11 being joined by a tension spring 14. When the piston moves into its right-hand position the valves are positioned so that pressure air is applied via entry 18, channel 19, chamber 20 and passage 22 to the righthand face of the piston which thus moves to the left to open the contacts. Near the end of this movement, the toggle snaps over and restores the valves, so that air flows as shown by the arrows to return the piston. The moving contact may be carried on the toggle so as to move with a snap action or the contacts may be outside the case. A solenoid 16, which is energized at the same time as a lamp is selected, has a plunger 15 which when the device is inoperatve holds the lever 10 in its left-hand position so that the piston is held to the right, the device being started by energizing the solenoid to withdraw the plunger. The piston may be operated by suction at the normal venting aperture 23, and may be replaced by a vane.
Patent GB-809383-A (GB)
Title: Pressure operated electric switch unit
IPC: H01H35/26
Filed: 1956-10-25
Abstract: 809,383. Fluid pressure linear dimension gauges. SHEFFIELD CORPORATION. Oct. 25, 1956 [Oct. 28, 1955], No. 32541/56. Class 106 (2). [Also in Group XXXVII] A fluid-pressure operated electric switch unit is inserted in the supply pipe 82 to a gauge-head 90 inserted in a hole 80, the switches in the unit being set to upper and lower pressures corresponding to lower and upper limits of size of of hole 80 required. The fluid system includes a filter 84, pressure regulator 85, pressure indicator 86, adjustable restrictor 87 and pressureresponsive dimension indicator 88. The switch unit housing part 10 carries a switch block 40 mounting two pairs of switch blades 44, 45 and 66, 67, the former being normally closed and the latter normally open. Blade 44 is connected to terminal 57, blades 45 and 67 to terminal 60 and blade 66 to terminal 75. The housing part 11 carries two bellows elements 20, 21 with passages 28 to the pressure supply connection 12. Each element 20, 21 has a cap 30 or 31 passing through clearance holes in a stop bar 36 and having a notch 34 or 35 engaging a projection 50 or 70 on the switch blade 44 or 67. Adjustment knobs 17, 18 control rods 55, 72 respectively which hold the switch blades 45, 66 against their natural bias and allow independent adjustment of the contacts. Indicating plates for a normally-open and a normallyclosed switch are carried on the casing part 10 adjacent the respective knobs 17, 18 (Fig. 1, not shown).
Patent GB-621522-A (GB)
Title: Improvements in and relating to rotary fluid-operated motors
IPC: F01C11/00
Filed: 1946-11-02
Abstract: 621,522. Rotary engines. WERNER, W. A. P. Nov. 2,1946, No. 32571. [Class 110(ii)] An engine, adaptable as a pump, of the axially-sliding vane type comprises a rotor having a web 8 and annuli 7, 9 rotatable in a casing whose end walls are cam-shaped 15 and contact the ends of a laminated piston 12 carried in a slot in the rotor. For a motor working fluid, which may be steam, enters through a passage 16, port 17 into the channels formed by the end walls 15 and the web 8 which has a slot cut through it behind the piston to allow fluid communication between the channels. The fluid passes through an exhaust 6. In a modified arrangement, a multi-stage engine has inner and outer annular chambers formed as high-pressure and low-pressure stages. The piston comprises front and back tapered plates, having curved inlet and outlet passages and inner packing plates arranged in parts pressed outwards by springs. The rotor may be held fast and the casing rotate and be used as a driving pulley. The engine may be used, in combination with threaded spindles and nuts, as a screw-jack.
Patent GB-392918-A (GB)
Title: Hydraulic system for handling ashes and the like
IPC: F23J1/00
Filed: 1931-11-24
Abstract: 392,918. Conveyers. ELLIS, G. B., 70, Chancery Lane, London.-(Metropolitan Engineering Co. ; 1250, Atlantic Avenue, Brooklyn, New York, U.S.A.) Nov. 24, 1931, No. 32583. [Class 78 (i).] In a sluice-way conveyer for ashes or the like comprising an inclined trough 1 along which the material is carried by a stream of water supplied at 21, side walls, consisting of iron plates 13.. 16 and girders 7, all lined with concrete, extend upwardly from the trough and doors 18 are arranged at intervals in the plates 14 to provide access to the trough for the removal of obstructions. The trough is formed of sections 1 bolted together at 2 and is provided with a loose liner also formed in sections which may be readily lifted out when renewal is necessary. Booster jets 24 are provided at intervals along the length of the trough and are equipped with valves 26 so that they may be used constantly or turned on only when the trough becomes choked. Specification 381,615, [Group XII], is referred to.
Patent GB-410032-A (GB)
Title: Improvements in and connected with bag-making machines
IPC: B31B23/00
Filed: 1933-11-23
Abstract: 410,032. Severing tubular bag material. BEASLEY, H. H., 28, Wine Street, Bristol. Nov. 23, 1933, No. 32761. [Class 31 (i).] Relates to a bag-making machine comprising a guide plate 2 over which the tubular sheet material 1 is fed and having shearing edges 3, 4 co-operating with a beater 6. The beater 6 is moved across the path of the sheet material in a plane at right-angles thereto in such manner that it is maintained parallel to, or at a predetermined angle to, the shearing edges 3, 4 and so that its two ends move in arcuate paths of substantially equal radii. In one form, Fig. 3, one end of the beater 6 is supported by a parallel pair of cranks 11 on separate shafts 12. A link may be interposed between one end of the beater and the corresponding crank 11. Alternatively, one end of the beater is secured to the spindle of a chain or sprocket wheel carried by the outer end of an arm radiating from the shaft of a second sprocket wheel, an endless chain passing over the two sprocket wheels. The chain and sprocket wheels of this form may be replaced by three pinions of equal size, mounted upon the arm, the end of the beater being secured to the spindle of the pinion at the end of the arm.
Patent GB-158148-A (GB)
Title: Improvements in electrolytic gas generators
IPC: C25B9/00
Filed: 1919-12-31
Abstract: 158,148. Levin, I. H. Dec. 31, 1919. Liquids and gases, separating.-Means for separating gas from liquid flowing from one compartment of an electrolytic to another, or from a compartment to a feed-device, comprises a casing with a passage open above to the compartment and a tube opening at one end into the passage and at the other end into the compartment. Gas bubbles accumulate on the upper inner wall of the tube and coalesce to form free gas which can easily escape. As shown, each of two tubes i is fitted at one end in the side of a casing h, which is divided by a partition h<1> so as to form a long trough. This trough is open to the gas space of the compartment with which the tube i communicates. Liquid passing through the tube i has to travel the whole length of the trough before reaching a liquid supply tube h<5> or a hole j in the partition b between the gas chambers. A similar casing and tube i are arranged behind the hole j. The inner end of the tube i may be bevelled.
Patent GB-1084477-A (GB)
Title: Improvements in or relating to the preparation of cyanogen
IPC: C01C3/00
Filed: 1966-07-21
Abstract: Cyanogen is prepared by reacting hydrogen cyanide with nitrogen dioxide (as defined) at a temperature not greater than 100 DEG  C. and in the presence of a catalyst comprising a cupric salt and water. By "nitrogen dioxide" is meant NO2, N2O4, or an oxide of nitrogen having a degree of oxidation higher than that of NO and which can dissociate or combine with oxygen to form NO2 and/or N2O4.  Preferred reaction conditions are a temperature of 0-15 DEG  C. and a pressure not exceeding atmospheric.  The hydrogen cyanide and nitrogen dioxide may be used in a mole ratio of 2:1.  The catalyst may be an aqueous cupric salt solution, or may be of solid form e.g. as cupric salt hydrate or as silica and/or alumina gel impregnated with aqueous cupric salt solution.  The cupric salt may be a nitrate, chloride, sulphate, or acetate, and can be formed in situ by oxidation of a cuprous salt with the nitrogen dioxide.  If the reaction is carried out in a closed system the pressure in the reaction vessel rises and the cyanogen formed reacts with the water to form oxamide and carbon dioxide.ALSO:Oxamide is produced as a by-product in the preparation of cyanogen which preparation comprises reacting hydrogen cyanide with nitrogen dioxide (as defined) at a temperature not greater than 100 DEG  C. and in the presence of a catalyst comprising a cupric salt and water. Large quantities of oxamide are produced if the reaction is carried out under autogenous pressure as the cyanogen produced reacts with the water to form oxamide and carbon dioxide. By "nitrogen dioxide" is meant NO2, N2O4, or an oxide of nitrogen having a degree of oxidation higher than that of NO and which can dissociate or combine with oxygen to form NO2 and/or N2O4.  The catalyst may be an aqueous cupric salt solution, or may be of solid form, e.g. as cupric salt hydrate or as silica and/or alumina gel impregnated with aqueous cupric salt solutions.  The cupric salt may be a nitrate, chloride, sulphate, or acetate, and can be formed in situ by oxidation of a cuprous salt with the nitrogen dioxide.  In Example 6, HCN (5.4g.) and NO2 (4.6g.) were mixed with 200 g. of aqueous cupric nitrate solution (1 mol./1000g. water) at 5 DEG  C. in an autoclave. The pressure rose to 9 kg./cm.2 (gauge) after 30 minutes, and 3.0g. of oxamide were produced, the yields of C2N2 and CO2 being respectively 53 and 12 mol. per cent.
Patent GB-1030446-A (GB)
Title: Improvements relating to metal-clad laminates
Inventor: SALTER ROY
IPC: H05K3/38
Filed: 1962-08-20
Abstract: 1,030,446. Laminates. FORMICA INTERNATIONAL Ltd. Aug. 13, 1964 [Aug. 20, 1963], No. 32928/63. Heading B5N. Metal-clad laminates, particularly for making printed circuits, comprise a foil of metal such as copper, brass, cupro-nickel, zinc, tin, aluminium, gold or silver, bonded with heat and pressure to one or both sides of a core, e.g. of paper, impregnated with a thermosetting resin, with the aid of an adhesive composition comprising an aminotriazine-aldehyde resin, preferably a melamine-formaldehyde resin, and a polyvinyl acetate, preferably polyvinyl butyrol. The adhesive also preferably contains a phenol from aldehyde or urea-formaldehyde resin, and the components may be applied in a common solvent such as ethylene glycol mono-methyl- or monoethyl-ether. The proportion of phenolaldehyde resin to acetal used is preferably 10: 90 to 70: 30, particularly 30: 70 to 70: 30, and the proportion of aminotriazine-aldehyde resin is preferably 1-30% of phenol-aldehyde plus acetal. Suitable thermosetting resins for the core are phenol-, cresol, xylenol or resorcinolformaldehyde or acetaldehyde resins or similar resins in which other aldehydes or equivalent substances replace those specified. The above resins may be modified by the inclusion of natural resins, tung oil, glycol diphthalates, or phosphoric triesters. Alternatively urea- or melamine-aldehyde, epoxy or furfural resins, or natural resins may be used in the core.
Patent GB-281731-A (GB)
Title: Multiple speed wheel-gear
IPC: F16H3/08
Filed: 1927-12-06
Abstract: 281,731. Hohenzollern Akt.-Ges. f³r Lokomotibau. Dec. 6, 1926, [Convention date]. Variable-speed gearing yielding equal speeds in opposite directions comprises a number of parallel countershafts and loose gears such as 11, Fig. 1, which together with their friction clutches 13 are overhung upon their bearings 54. Since intermediate speeds are obtainable by allowing slip in the clutches, the invention is suitable for driving locomotives. The two-speed gear shown in the lower part of Fig. 1 is combined with the two speed gear shown in the upper part. A cross shaft 7 is driven in either direction from a shaft 2 through a bevel reversing- gear 3, 4, 5, 6. The shaft 7 carries two fast gears 8, 9 which drive four loose clutch gears 11, 12, 21, 22. A shaft 10 is driven at two speeds according as clutch 13 or clutch 14 is actuated. The shaft 10 is constantly connected through divided pair 17, 31 and 18, 32 to shaft 30, which is constantly geared through a pair 33, 41 to driven shaft 40. A shaft 20 is driven at two different speeds according as clutch 23 or clutch 24 is actuated. This shaft is constantlv connected through a gear 27 and gear 33 acting as an idler to gear 41 and shaft 40. Thus shaft 40 is driven at four speeds in either direction. By the omission of parts, three speeds only are obtained. A modification doubling the number of speeds in each direction is shown in Fig. 3. The shafts a<1>, a<2> of two Diesel engines are geared together through a sleeve o, and by means of bevel gears shown and clutches e<1>, e<2>, a shaft f is driven in either direction. A parallel countershaft 7 is geared permanently to two loose overhung gears k, l on the shaft f. By actuating clutches h, i alternatively, the shaft 7 can be driven at either of two speeds. This shaft 7 carries fixed pinions 8, 9 and takes the place of the first transverse pinion shaft 7 in the arrangement shown in Fig. 1.