baber/WOPTO huggingface dataset:
Patent GB-793773-A (GB)
Title: Process for the separation of certain components of coal tar
Inventor: GREENHOW EDWARD JOSHUA
IPC: C10C1/20
Filed: 1953-05-30
Abstract: The components of coal tar distillates and fractions which react relatively slowly with formaldehyde in the presence of an acidic catalyst are separated from those which react relatively rapidly by reacting the distillate or fraction with formaldehyde or other aldehydes or related compounds such as paraformaldehyde, acetaldehyde, or methylal, and an acidic catalyst under such conditions that the components which react rapidly are converted to a clear resin.  It is stated that phenols, coumarone, thionaphthene, anthracene, anthracene substituted in positions other than the 9 and 10 positions, and pyrene react relatively rapidly; diphenylene oxide, phenanthrene, fluoranthene and chrysene react relatively slowly; while fluorene, naphthalene and substituted naphthalenes react at an intermediate rate.  The formaldehyde may be used in aqueous solution. The catalyst may be sulphuric acid, hydrochloric acid, para-toluene sulphonic acid or phosphoric acid.  An inert solvent such as paraffin or chlorinated paraffin may be added.  In examples, coal tar fractions and distillates are treated according to the invention to produce fairly pure phenanthrene, naphthalene, diphenylene oxide, dimethyl naphthalenes, fluoranthene and chrysene.ALSO:The components of coal tar distillates and fractions which react relatively slowly with formaldehyde in the presence of an acidic catalyst are separated from those which react relatively rapidly by reacting the distillate or fraction with formaldehyde or other aldehydes or related compounds such as paraformaldehyde, acetaldehyde, or methylal, and an acidic catalyst under such conditions that the components which react rapidly are converted to a clear resin.  It is stated that phenols, coumarone, thionaphthene, anthracene, anthracene substituted in positions other than the 9 and 10-positions and pyrene react relatively rapidly; diphenylene oxide, phenanthrene, fluoranthene and chrysene react relatively slowly; while fluorene, naphthalene and substituted naphthalenes react at an intermediate rate.  The formaldehyde may be used in aqueous solution.  The catalyst may be sulphuric acid, hydrochloric acid, para-toluene sulphonic acid or phosphoric acid.  An inert solvent such as paraffin or chlorinated paraffin may be added.
Patent GB-553551-A (GB)
Title: Improvements in or relating to sliding clasp fasteners
IPC: A44B19/36
Filed: 1941-11-24
Abstract: 553,551. Sliding-clasp fasteners. GRANT, H. B., and LIGHTNING FASTENERS, Ltd. Nov. 24, 1941, Nos. 15125/41 and 5871/42. [Class 44] To allow separation of the stringers of a sliding-clasp fastener when the slider is at the top end with the fastening closed, the slider is arrested by top stops which abut within the slider, one or both of the stops being resilient or resiliently mounted so that, by exerting additional force, the slider may be moved beyond the stops. As shown, the stops abutting within the slider 8 are both resilient, each being in the form of a semi-elliptical spring 5 the inturned ends of which are received in a split sleeve 6 clamped on the beaded edge 3 of the tape 2. The bead 3 of one stringer terminates a short distance above the fastener elements 4 and is provided at its end with a tag 9 or other means to prevent fraying. The springs 5 are strong enough to arrest the slider in the position shown when normal force is applied to the slider, but additional force compresses the springs so that the slider can move beyond the stops and clear of end 9. The unbeaded portion of the tape can then be removed laterally through the slot of the slider and the fastening undone by lateral pull on the tapes. The slider is retained on the bead of the other tape, its endlong removal therefrom being prevented by a stop of usual form or, as shown, by folding back the end 10 of the tape and securing it by stitching. In a modification the spring 5, instead of being in one piece as shown, is laminated. In another form described the stop is in one piece of arched form the ends of which are bifurcated and clamped on the bead, the central portion of the arch being resilient. In a further form the stop is rigid and is clamped in contact with the tape edge by a member having an aperture through which the stop projection extends. In this case the stop is displaced bodily inwards compressing the beaded edge of the tape the resilience of which is relied on to give the required spring or resilient effect. The lower ends of the stringers have separable fittings, not shown, of the usual pin and socket type.
Patent GB-878220-A (GB)
Title: Improvements in or relating to pilfer-deterrent sales package
IPC: A47F7/02
Filed: 1958-05-12
Abstract: 878,220. Displaying. PAPER MATE MANUFACTURING CO. May 12, 1958 [May 27, 1957], No. 15126/58. Class 3(2) [Also in Group XVII] A display device, Fig. 1, for fountain pens, lipsticks &c. comprises a box 21 having a slotted shelf 27 adapted to receive.display panels 30 each of which is releasably held in its slot by a rod 43 engaging a J-slot therein. The pen may be secured to the panel 30 by means of an adhesive tape 48 or secured to a modified panel 30c, Fig. 14, by a clip 85, 95 having attachment lugs 94. The panel may .terminate in a scaling for said pen of triangular cross-section or V-shape to which the pen may be secured by means of clips or tapes, see Figs. 15-20 (not shown) by a modification 1; Fig. 6, the panels 30a are mounted on wings 54, 55 rotatably carried by a stand 50, the pen being secured to the panel by a plastic envelope 62 and staples 64 or by opposed cupshaped members, see Fig. 9 (not shown).
Patent GB-1301146-A (GB)
Title: Means for locking radio/instruments or apparatus
Inventor: COMLEY ERASMUS SMIT
IPC: F16B39/22
Filed: 1970-03-31
Abstract: 1301146 Locking nuts E S COMLEY 31 March 1970 [31 March 1969] 15175/70 Heading F2H To prevent theft, a car radio 10 or other unit is secured to fixed structure 12 by nuts 18 which are locked by a ratchet device which allows the nuts to be tightbned but prevents them from being loosened. Holes must be drilled through the nuts to release the ratchet pawls. Threaded studs 14 rigid with the unit 10 are passed through holes 32 in the dashboard 12 and/or a trimplate 20. In Figs. 1, 5, a washer 22 has resilient tongues 24 forming pawls engageable with blind bores (28), (Fig. 2, not shown), in the underside of a nut 18, and tabs 26 which engage in holes 30 in the trimplate or dashboard. The nut is flat and circular, and is tightened by a pin spanner. A modified washer 56, Fig. 11, has a wave-like form, with a pin 58 or tab extending axially from each crest to engage blind bores (64), (Fig. 9, not shown), in the nut and resilient tongues 28À1 in the trimplate 20À1, Fig. 12, the washer being housed in an annular channel (62) in the underside of the nut. A further modification, eliminating the washer, comprises one or more sprung pins 76 housed in the nut 18À2, Fig. 14, and engageable with the tongues 28À1 of the trimplate 20À1. Instead of the sprung pins, resilient tongues may be provided on the nut. To free the nut, holes are drilled through it in alignment with the bores 28 or 64, or the pins 76, using a drilling jig (40) (Fig. 15, not shown), a pin spanner being used to hold down the tongues 24 or pins 58 while loosening the nut. In the case of nuts 18À2, the pins 76 are extracted to allow loosening of the nut.
Patent GB-253917-A (GB)
Title: Improved method of and apparatus for cleaning the plate set and the distributing cross of centrifugal separators
IPC: B04B15/06
Filed: 1926-06-16
Abstract: 253,917. Noess, H. June 18, 1925, [Convention date]. Cleaning drums.-The plate set 2 and the distributor 3 of a centrifugal separator are removed from the separator bowl for cleaning and are inserted in the bowl 4 which rotates with the spindle 1. The wall of the bowl 4 has slots 9, and the top piece of the separator, or the special top 5 shown, is secured to the bowl 4 by the nut 6. The cleaning medium is supplied through the hopper 7 and passes simultaneously through the distributor 3 and through the opening in the neck to the inner edges of the plates. It then passes between the plates and is expelled with the impurities through the slots 9. Instead of using a special cleaning bowl, the bowl of the separator may be slotted and used for cleaning. The slots are covered during separator working and uncovered for the cleaning operations.
Patent GB-973547-A (GB)
Title: Removal of dust from combustible particles
IPC: C10L9/06
Filed: 1963-04-17
Abstract: 973,547. Removing fines from combustible particles. ALLIED CHEMICAL CORPORATION. April 17, 1963 [May 17, 1962], No. 15198/63. Headings B1T and B1X. Fines are removed from combustible particles by passing the particles in dispersed form through a selective oxidation zone in contact with an oxygen-containing gas maintained at a temperature below the kindling point of the larger particles but above that of the smaller particles, removing the gaseous oxidation products and recovering the larger particles. As shown in the preferred apparatus of Fig. 2, the particles are passed through two oxidation zones in succession. Particles (e.g. coke particles or briquetted sulphur containing dust) are fed from hopper 12 to the upper part of tube 14 and fall by gravity through a first selective oxidation zone created by flue gases from burner 6 to which'a hydrocarbon gas and air are supplied and by cool air for the oxidation admitted at 18. The latter admission of air also creates a zone in which any tendency of larger particles to burn is arrested. Oxidation products are removed at 20 and the particles are then passed to second oxidation and arresting zones to remove any remaining fines. Details are given in connection with the time required to reach kindling point and the rate of admission of the gases.
Patent GB-545418-A (GB)
Title: Improvements connected with the production of iron alloys
IPC: C21C7/00
Filed: 1940-10-14
Abstract: 545,418. Extracting iron; alloys. UDY, M. J. Oct. 14, 1940; No. 15246. Convention date, Oct. 26, 1939. [Class 82 (i)] Iron and iron. alloys are produced by means of a solid exothermic agglomerate comprising silicon, which may be in the form of a metal silicide or a silicon alloy, e.g. ferro silicon, bonded by means of an oxidizing agent such as an alkali metal nitrate or chlorate. The oxidizing agent may be solidified from a molten state in contact with ferrosilicon in the form of particles. Iron or iron oxide may be present; or the agglomerate may also contain lime in sufficent amount to flux the silica formed; or lime chemically combined with ferric oxide, as described in Specification 538,439, may be used. One or more alloying metals may be obtained in the product such as chromium, copper, nickel, cobalt, vanadium, tungsten, molybdenum, titanium, or manganese, by including them as metals or reducible compounds such as oxides. Scrap iron or steel to be melted may be bonded with the mixture. In some cases a binder such as sodium silicate may be used. The mixtures may be ignited on the surface of a molten metal bath.
Patent GB-549918-A (GB)
Title: Improvements relating to tanks for the circulating cooling lubricant of precision grinding and like machines
IPC: B24B55/02
Filed: 1941-11-27
Abstract: 549,918. Centrifugal separators. CHURCHILL MACHINE TOOL CO., Ltd., and ASBRIDGE, H. H. Nov. 27, 1941, No. 15300. [Class 23] [Also in Groups XXXIV and XXIII] In precision-grinding and like machines, cooling lubricant from the grinding wheel or cutting tool and workpiece is separated from impurities in a cyclone separator. The oil may pass into a second separator and a settling chamber before passing to a pump for delivery to the grinding wheel. The oil from the wheel a travels along duct b to pipe c which is directed downwards along the wall of tank d. This tank has an axial and vertical delivery pipe leading to trough e and the inlet pipe f of a second tank g. Oil then passes by delivery pipe h and trough i to a settling chamber j and pump k for return to wheel a.
Patent GB-395138-A (GB)
Title: Improvements in and relating to loud speaking telephones
IPC: H04R7/12
Filed: 1932-05-30
Abstract: 395,138. Diaphragms. WALTERS, F., (trading as NUVOLION ELECTRICS), and MELLAS, J. W., 56, Derington Road, Tooting, London. May 30, 1932, No. 15311. [Class 40 (iv).] A seamless conical diaphragm 1 and integral cylindrical extension 2 for the coil 5 of a moving- coil loud-speaker is formed by pressing a mass of paper pulp &c. or a sheet of fabric softened by treatment with h steam between appropriately shaped moulds, the diaphragm after drying being impregnated to render it non-hygroscopic whilst the extension 2 is treated with a shellac varnish. The coil 5 is also coated with shellac varnish after it has been wound on the extension. The diaphragm is preferably formed with a corrugated flange 4 and the moulds employed are preferably shaped so as to produce portions 3 of slightly increased thickness at the central part of the cone and at the point where the latter meets the extension 2. If desired, the coil 5 may be accommodated in an annular indentation formed in the outer surface of the extension.
Patent GB-185493-A (GB)
Title: Improvements in or relating to fastenings for wearing apparel and the like
IPC: A44B9/00
Filed: 1921-06-02
Abstract: 185,493. Gall, R. L. B., (Scott. R. N. G.). June 2, 1921. Pins, dress etc.; pin heads. - Temporary fastenings for wearing- apparel &c. comprise a fastener 13 attached to a pin 10. The pin can be adjusted lengthways in the material, which is gripped between a protuberance 11 and the fastener, to which it is adjacent. The pin is also twisted at 18 to resist accidental removal. Any type of fastener, such as flexibly-mounted, a hook, a snap device, or a buttonhole device, may be mounted on the pin, and more than one on the same pin. Reference has been directed by the Comptroller to Specifications 12482/88, 26341/198 [both in Class 43, Fastenings, Dress], 13203/03, and 15025/12, [Class 141, Wearing-apparel].
Patent GB-1136937-A (GB)
Title: Quaternary ammonium halides
IPC: C07D295/06
Filed: 1966-04-06
Abstract: 1,136,937. Tertiary amines; quaternary ammonium compounds. MONTECATINI SOC. GENERALE PER L'INDUSTRIA MINERARIA E CHIMICA. 6 April, 1966 [13 April, 1965], No. 15358/66. Heading C2C. Quaternary ammonium halides of the general formula wherein X is Cl, Br or I, R 1  and R 2  are each alkyl, alkenyl, cycloalkyl or cycloalkenyl, or together with the ammonium nitrogen atom form a heterocyclic ring, R 3  is an alkyl group containing a Cl atom in the #-position to the ammonium nitrogen atom, R 4  is alkyl or aralkyl, and R 1 , R 2 , R 3  and R 4  contain 1-20 carbon atoms, are prepared by reacting an N-chloro secondary amine of the formula R 1 -NCl-R 2  with an olefin in the presence of a ferrous, titanous or cuprous salt catalyst to give an amine of the formula which is separated and then quaternized with a compound R 4 X. Reference has been directed by the Comptroller to Specification 1,032,831.
Patent GB-612249-A (GB)
Title: Improvements in and relating to chains and links therefor
IPC: B65G17/10
Filed: 1946-05-21
Abstract: 612,249. Chains. LOPES, M. A. May 21, 1946, No. 15400. [Class 24] A chain of the endless conveyer type traversing a conveyer sprocket 6, has channel-shaped links 2 pivotally connected at 3 near their open sides and including on the side flanges of the channels end portions 5 which are bent towards each other to abut the bent end portions of adjacent links. The web of the channel of each link has a projection 7 at one end which overlaps and engages the web of an adjacent link in order, together with the abutments 5, to prevent sagging of the links.
Patent GB-859850-A (GB)
Title: Improvements in the production of 1-phenylcyclohexane-1-hydroperoxide
IPC: C07C409/10
Filed: 1957-05-15
Abstract: A modification of the process for the preparation of 1-phenylcyclohexane-1-hydroperoxide claimed in the parent Specification is characterised in that the phenylcyclohexane is reacted with the molecular oxygen in the presence of a hydroperoxide of an isopropyl substituted aromatic hydrocarbon. The reaction is preferably carried out in the presence of 4-5% based on the weight of the reaction mixture of cumene hydroperoxide which is at least 90% by weight pure when introduced.  An example is given in which an increased conversion to hydroperoxide is obtained.
Patent GB-899897-A (GB)
Title: Organo-phosphorus derivatives
IPC: C07F9/32
Filed: 1960-05-02
Abstract: The invention comprises compounds of formula <FORM:0899897/IV (b)/1> where R is C1-4 alkyl, R1 is C1-4 alkoxy, C1-6 alkyl, cycloalkyl, amino, C1-4 alkylamino, or C1-4 dialkylamino, R2 is C1-4 alkoxy, C1-6 alkyl or alkenyl, cycloalkyl or phenyl, and X is oxygen or sulphur. They may be prepared by reacting ab -haloethyl-(p-alkylmercaptophenyl) thioether of formula <FORM:0899897/IV (b)/2> with a salt of a monothio- or dithiophosphoric, -phosphonic or -phosphinic acid ester or amide. The products are insecticides.  p-Alkylmercaptothiophenols, said to be new, are said to be prepared by reduction of p-alkylmercaptophenylsulphonic acid chlorides with zinc dust.  They may be condensed with ethylene bromide or chloride to give the above-mentioned b  - haloethyl - (p - alkylmercaptophenyl) thioethers.ALSO:Insecticidal compositions comprise a compound of formula <FORM:0899897/VI/1> where R is C1-4 alkyl, R1 is C1-4 alkoxy, C1-6 alkyl, cycloalkyl, amino, C1-4 alkylamino, or C1-4 dialkylamino, R2 is C1-4 alkoxy, C1-6 alkyl or alkenyl, cycloalkyl or phenyl, and X is oxygen or sulphur.  Conventional solid or liquid carriers are used and known insecticides and/or fertilisers may be present.
Patent GB-708443-A (GB)
Title: Improvements relating to magnetic brakes for instruments of the rotating induction disc type
Inventor: FENTON LAWRENCE RAYMOND
IPC: G01R11/10
Filed: 1951-06-29
Abstract: 708,443. Eddy-current brakes. ENGLISH ELECTRIC CO.. Ltd. June 13, 1952 [June 29, 1951], No. 15460/51. Class 35 A brake magnet for an induction disc meter is carried by a carriage 1 which is arranged to be adjustably moved parallel to the disc by a screw 9 and a nut 10, the latter having projections or pins 10a slidable within diagonal slots 1b in each side of the carriage 1. The adjusting screw 9 passes through a hole in a double washer 8 which can be locked by a screw 7. The end of the screw 9 passes through the meter frame 5 and is formed to receive a spring 11 between a flange 9a and the frame 5. When it is desired to adjust the magnet (not shown), the screw 7 is loosened and the screw 9 turned, thus causing the carriage 1 to move to the right or left over the pillars 3, 4 protruding from the frame 5. The meter may include further magnet carriage for coarse adjustment.
Patent GB-549629-A (GB)
Title: Improvements in or relating to centrifugal machines
IPC: D06F49/06
Filed: 1941-12-01
Abstract: 549,629. Centrifugal machines. ELECTRIC HOUSEHOLD UTILITIES CORPORATION. Dec. 1, 1941, No. 15474. Convention date, March 1. [Class 23] In a centrifugal machine for laundry work, the basket and its driving mechanism are carried by a supporting frame which is itself supported by flexible members attached to it at their lower ends from which they run upwardly and outwardly, and are then fastened to an auxiliary frame surrounding the supporting frame. The basket 28 has a number of apertures 29 and is driven by the tubular shaft 32 which passes through the standard 30 for connection to the driving mechanism inside the housing 31. The standard 30 passes through the basket casing 21 and is connected to the housing 31. An agitator element 35 is mounted in the basket and is driven by a shaft 36 which passes through the tubular shaft 32. The clutching and driving mechanisms are operated by a Bowden wire controlled by the handle 40. The gear-housing 31 has three depending supports 45 rigidly secured at their lower ends to a triangular supporting frame 47 of sheet metal with downturned edges. The driving motor 50 is mounted on a framework 51 secured to the top of the housing, and support is also given by angularly disposed brackets 53 connected to the frame 47. The structure thus formed is supported from an auxiliary triangular frame 56 by three flexible straps 57, of greater width than thickness and preferably formed of leather, the dimensions being such that each strap occupies an inclined position. The angle of each strap should be between 30 degrees and 50 degrees to the vertical, the preferred angle being 45 degrees. Each corner of the frame 56 is supported on a resilient foot 68 of material such as semi-hard rubber, and inverted U-shaped brackets 75 limit any movement of the machine away from the main frame 12.
Patent GB-244947-A (GB)
Title: Improvements in or relating to solutions, compositions or preparations for textile and like purposes and their applications
IPC: D06M15/17
Filed: 1924-06-27
Abstract: 244,947. British Celanese, Ltd., Ryley, C. F., and Awcock, G. A. June 27, 1924. Sizes.-Sizing preparations for yarns or threads, particularly those of silk, spun silk, or artificial silk, comprise one or more waterinsoluble salts or soaps of resin acids or of naphthenic acids in combination with one or more lubricating agents, namely, non-volatile non- drying oils, fats, waxes, or liquid or solid fatty acids. The water-insoluble resin or naphthenic acid salts or soaps are preferably those of calcium, magnesium, zinc, aluminium or equivalent metals. One or more soaps of fatty acids, including those of sodium potassium, ammonium, but preferably those of calcium, magnesium, zinc or aluminium, may be added. The resin or naphthenic acid soap or salt may be dissolved in benzol, toluol, xylol, oil of turpentine, &c., with admixture of the lubricating agent; or emulsifying agents may be used; or the materials may be melted together. The following is given as an example : Calcium resinate 20 parts by weight, lard 9 parts, benzol 25 parts, with or without zinc oleate 2 parts. The preparation may be applied by dipping the yarn in hanks, or during winding of yarn; or it may be applied to artificial threads of cellulose esters or ethers continuously with their production by the dry or evaporative spinning method, as described in Specification 210,266, [Class 120 (iii), Yarns &c.]. The metallic bases in the preparations reduce the tendency to electrification during the working of the yarns. The size may be removed by scouring with a soap solution, with or without previous treatment with acid. According to the Provisional Specification, the sodium, potassium, or ammonium, salts of resin or naphthenic acids may be utilised.