baber/WOPTO huggingface dataset:
Patent GB-1442725-A (GB)
Title: Polycondensation products
IPC: C08G63/12
Filed: 1974-02-13
Abstract: 1442725 Phosphorus containing polyesters HOECHST AG 13 Feb 1974 [14 Feb 1973] 6579/74 Headings C3R and C3P Oil-modified and unsaturated polyesters are prepared in the presence of, as catalyst, a compound of the formula  in which R 1  is H or methyl and R 2  is C 1-10  alkyl, or the reaction product of the above compounds with a carboxyl-group containing compound. The catalysts are chemically built into the polyesters and preferably give polyesters having a phosphorus content of from 0À002 to 0À7% by weight. The examples describe preparing polyesters from (a) phthalic anhydride, pentaerythritol, benzoic acid and (i) soyaÀ oil fatty acids and p-tert-butyl benzoic acid, (ii) linseed oil fatty acids or (iii) linseed oil and glycerine, and (b) maleic anhydride, phthalic anhydride, 1,2-propanediol and hexachloro-endo-methylene-tetrahydrophthalic acid, using the following catalysts: 4-methyl or ethyl - 1 - phospha - 2,6,7 - trioxabicyclo[2,2,2]- octane, 3 - methyl - 4 - ethyl - 1 - phospha- 2,6,7 - trioxabicyclo[2,2,2]octane and the reaction product of sucoinic acid and 4-ethyl-1- phospha-2,6,7-trioxabicyclo[2,2,2]octane. The unsaturated polyesters prepared in (b) above are mixed with styrene and cured.
Patent GB-890123-A (GB)
Title: A method and apparatus for feeding granular pulverulent materials into a reaction vessel
IPC: F27D3/00
Filed: 1959-02-25
Abstract: 890,123. Charging loose material. KNAPSACK-GRIESHEIM A.G. Feb. 25, 1959 [March 5, 1958], No. 6589/59. Class 51 (2). In a vacuum furnace 1 heated by electrodes 12 around which at 16 hydrogen may be introduced, pulverulent or granular reactants are introduced by a stationary tube (not shown) entering a rotary, double-walled feed tube 8 with a deflected lower end 3. Feed tube 8, which is cooled, passes through bearings 11 and a further cooling jacket 5 surrounded by a heat-insulating tube 4 itself disposed in a pipe 15. Spent material may be removed by a movable grate 7 and volatile material by an offtake 13 which may be connected to a vacuum pump. The furnace may be used for the production of magnesium vapour from dolomite and ferrosilicon.
Patent GB-1097513-A (GB)
Title: Plasticized polyvinyl alcohol resin compositions
IPC: C08K5/06
Filed: 1965-02-16
Abstract: Plasticized polyvinyl alcohol compositions comprise a water-soluble solid polyvinyl alcohol and a water-soluble reaction product of a polyhydric alcohol containing at least 3 OH groups, and an alkylene oxide, being the reaction product of from 1 to less than 20 moles of alkylene oxide per mole of polyhydric alcohol.ALSO:Polyhydric alcohols containing 1 or more ether groups are prepared by reaction suitably in the presence of a strong alkali catalyst of a polyhydric alcohol containing at least 3 -OH groups with from 1 to less than 20 moles of an alkylene oxide.  The examples describe the preparation of adducts of glycerine and ethylene oxide in the mole proportion 1:1.15 and 1:2 and a mixture of glycerine and pentaerythritol and ethylene oxide in the mole proportion of 1:1.92.
Patent GB-828039-A (GB)
Title: Defiberator
IPC: D21D1/32
Filed: 1958-02-28
Abstract: 828,039. Preparation of paper pulp. BAUER BROS. CO. Feb. 28, 1958 [March 11, 1957], No. 6608/58. Class 96. In pulping wood chips &c. and extracting liquid therefrom in a defibrator, a cylindrical casing is formed, e.g. of longitudinal bars which are of rectangular cross-section and are spaced apart as by tapered wedges to provide drainage slots for the expressed liquid, alternate bars 2 having undulatory working surfaces 12, the other bars 1 having straight working surfaces 11 so as to provide spaced pockets 3 whereby the fibrous material is sheared and shredded &c.
Patent GB-1444367-A (GB)
Title: Recovery of zinc by electrolysis
IPC: C25C5/02
Filed: 1973-02-10
Abstract: 1444367 Electrolytic zinc recovery ECOLOGICAL ENG Ltd 29 Jan 1974 [10 Feb 1973] 6643/73 Heading C7B Zinc is recovered as powdered metal from viscose rayon plant effluent, e.g. acid spinning baths, stretching baths and washing liquors, by electrolysis using a rotating cathode. The effluent may contain 0.1-1wt. per cent of Zu, and may be adjusted to between pH4-7 by adding e.g. NaOH on a buffer such as Na acetate. A diaphragm cell may be used with an ion-exchange membrane. A cathode of Al or stainless steel is preferred with an anode of Pt, or a stainless steel tube through which a cooling fluid circulates. Current densities of 0.001 to 0.5 A/cm<SP>2</SP> are specified. If a diaphragm cell is used, H 2 SO 4  is recovered in the anolyte which may be used to redissolve the zinc for further viscose production.
Patent GB-739846-A (GB)
Title: Improvements in photographic developer compositions
IPC: G03C5/26
Filed: 1954-03-08
Abstract: 739,846. Photographic developer compositions. KODAK, Ltd. March 8, 1954 [March 10, 1953], No. 6665/54. Class 98 (2). The stability of a dry photographic developer composition containing phthalic anhydride is improved by heating the composition within the range 120 to 140 F., e.g. for one to two minutes. The heating may be effected in a screw feeding device having either an internally heated screw or a heated jacketed screw or in a heated rotating cylinder. Examples of suitable compositions are given. Specification 585,366 is referred to.
Patent GB-342559-A (GB)
Title: Improvements in or relating to the manufacture of phosphorus or phosphorus pentoxide
IPC: C01B25/12
Filed: 1930-02-28
Abstract: In obtaining phosphorus or phosphorus pentoxide, briquettes of comingled phosphorus containing mineral and carbonaceous material are charged into a furnace together with separately charged additional silicious material and, if desired, further carbonaceous material, phosphorus being volatilized, and also oxidized if desired, and a slag being produced.  The briquettes may contain some silicious material, but the quantity must be insufficient to form a suitable slag without the introduction of the additional silica.  The total amount of silica present should be sufficient to provide a ratio of 0,6 to 1,2 parts of silica to one part of calcium oxide.  In making the briquettes, binders such as sulphate liquor or molasses may be employed.  The carbonaceous material in the briquettes may comprise coke, anthracite, or bituminous coal and should preferably be in at least sufficient quantity for the reduction of the phosphorus in the mineral.  Phosphate rock may be employed as raw phosphorus containing material and pebble silica, clay or other silicates as the silicious material.
Patent GB-250550-A (GB)
IPC: G03B19/04
Filed: 1926-03-11
Abstract: 250,550. Rietzschel Ges., A. H. April 11, 1925, [Convention date]. Roll-film cameras; cases for.-The outer edges of the front opening of the inner casing a are bent at rightangles or into U-shaped channel form for light-tight connection to bent over flanges e of the front opening in the outer casing c forming the film spool chamber without soldering or riveting.
Patent GB-563609-A (GB)
Title: Device to facilitate the cleaning of windows
IPC: A47L1/00
Filed: 1943-04-30
Abstract: 563,609. Windows. MULLER, M. April 30, 1943, No. 6840. [Class 20 (iii)] Means for swinging a sash of sliding double sash windows out of the frame 1 and into the room for cleaning &c., comprise articulated arms C removably pivoted in brackets A on the window frame and carrying adjustable grippers B for engaging the upper and lower members F of the sash frame. The inner beading 4 at least at one side is pivoted to the window frame and the central fillet 6 is carried by links 7 so that it can be pushed up into a longitudinal recess 8 in the frame to facilitate removal of the sash. The sash cords 9 are removably secured to the sashes by the engagement of balls 10 at the sash ends of the cords engaging wire frames 11 secured to the sashes.
Patent GB-322409-A (GB)
IPC: H02K23/62
Filed: 1929-03-02
Abstract: 322,409. Salomon, J. Feb. 19, 1929, [Convention date]. Rotary machines; brushholders; motors, controlling; driving-arrangements. - A discshaped electric motor, especially applicable for gramophone drives, comprises rotor and stator elements one of which is adapted for attachment to a spindle driven by clockwork or other positive drive and means for coupling the two elements together for joint mechanical drive from the mechanically driven spindle and uncoupling them so that one can drive the other electrically without disturbing the mechanical driving means. The two elements shown consist of a lower non-magnetic plate 1, with a peripheral Gramme winding 7 on a magnetic core 6 and a turntable 2 with internal magnets 13, 14, the poles 13', 14<1> of which adjoin the windings 7. The plate 1 is secured on the gramophone or other spindle 4 by a wedge-shaped ring 38 or a leather sleeve and carries a commutator 10 for the windings 7 and slip-rings 17, 18. Current is led from the supply 19, Fig. 7, to the ring 17, brush 21, commutator 10 and Gramme winding 7 to the brush 22. From this brush it passes through the magnet coils 15, 16 and ring 18 to the other supply terminal 20. For electrical driving, the plate 1 is stationary and the rotation of the commutator brushes which are attached to the turntable produces a progressive sequence of magnetic poles in the core 6 whereby the magnets 13, 14 and the turntable are rotated. To adapt the motor for running on supplies of different voltage the armature and field windings may be connected in series or parallel or the field windings only may be similarly grouped. For joint mechanical drive, the two elements 1, 2 may be coupled by means of a bolt 24 pivoted in the plate 1 and engaging a recess in the turntable and this bolt may have a contact 27 so that it acts as a switch to close the driving circuit when the two elements are uncoupled. Ths bolt connection 24 may be replaced by a clutch between the two elements 1, 2 of such a type as to couple them for one direction of rotation only. The speed may be controlled by varying the brush pressure on the commutator, and with it the contact resistance, by means of an inertia device, as shown in Fig. 5. The brush 21 is mounted on an arm 31 pivoted at 33 on the turntable and having a massive extension 34, the brush pressure being regulated by a screw 35 and spring 36. When the table rotates, as indicated by the arrow, acceleration throws the mass 34 radially outwards and increases the brush contact resistance or lifts the brush completely off the commutator 10 and so interrupts the supply to the motor.
Patent GB-559850-A (GB)
Title: Improvements in or relating to lubricants
Filed: 1942-05-21
Abstract: 559,850. Lubricants. STANDARD OIL DEVELOPMENT CO. May 21, 1942, No. 6900. Convention date, April 5, 1941. Drawings to Specification. [Class 91] A lubricant adapted for work at high pressures and in contact with water comprises a mineral oil containing from 1 to 25 per cent. of a heavy metal naphthenate and about 0.5 to 5 per cent. of a hydroxy aromatic compound. The naphthenate, preferably derived from naphthenic acids or 8 to 23 carbon atoms such as those derived from California naphthenic base fractions falling in the gas oil boiling range, may be of lead, tin, barium or antimony or of one of the heavy metals of Groups II, IV and V of the Periodic system. Usually from 5 to 20 per cent. of lead naphthenate is used, but for heavy pressures over 10 per cent. should be present. The phenol should have a water solubility less than 5 grams per 100 cc. at 20C ; preferably from 0.5 to 3 per cent. of mixed cresols are used. Thickeners such as polyisobutylene may be added. Specification 442,289 and U.S.A. Specification 2, 031,986, are referred to.
Patent GB-1431358-A (GB)
Title: Impeller for a suction-cleaner compressor
IPC: A47L5/22
Filed: 1974-02-15
Abstract: 1431358 Centrifugal blowers PHILIPS GLOEILAMPENFABRIEKEN NV 15 Feb 1974 [1 March 1973] 6962/74 Heading F1C In a centrifugal impeller for a suction cleaner, having blades extending to an outer periphery of a central plate 1 and equally spaced circumferentially at their outer ends, the number of blades is greater than or equal to 8,000 divided by the nominal impeller speed in revolutions per second whereby the noise frequency is raised to a value at which it is readily attenuated or is above the range of hearing, and the blades comprise long blades 5 alternating with short blades 6. The inner diameter 7 of the blades 6 is approximately midway between the inner diameter of the blades 5 and the outer diameter of the impeller. The blades on both sides of the central plate 1 are injection moulded integrally with the central plate from plastics material, and side plates 2, 3 are provided.
Patent GB-100491-A (GB)
Title: Method of, and Apparatus for, the Localization of Foreign Objects in, and the Radiotherapic Treatment of, the Human Body by the X-rays.
Inventor: BAESE CARLO
Filed: 1916-05-16
Abstract: 100,491. Baese, C. May 17, 1915, [Convention date]. R÷ntgen-ray and like apparatus.-A process for localization of foreign bodies or for therapeutic application consists in placing the point under examination or cure on the axis of rotation of the body or of the apparatus, i.e. screen and X- ray tube, and measuring the distance between the axis of rotation and the surface of the body. As shown in Fig. 2, the patient rests on a table adapted to rotate about an axis F, F<1> and adjustable in height 'by screws B, B<1> geared together. The X-ray tube T casts a shadow of the foreign body C on to a screen S, so as to coincide with a mark thereon, and when the table is partly rotated, the shadow leaves the mark. The table is then adjusted in height until the shadow again coincides with the mark on the screen, when the axis of rotation passes through the foreign body. As shown in Fig. 3, the X-ray tube T and screen S are adapted to slide horizontally in different directions on supports E, E<1> by means of a connecting-rcd G pivoted to a block Q, which is displaced vertically until the shadow of the foreign body does not leave the mark on the screen at any angle, when it is on the line of rotation of the plane F, F<1>. As shown in Figs. 6 and 7, the screen and tube are carried by arms M, N on a frame H attached to a block P pivoted about an axis F. F' on another block R adapted to slide in vertical supports K and adjusted in height by a cord passing over a fly-wheel V and pulleys to vary the height of the axis of rotation F, F'. The screen may be watched by reflection from a mirror, or 'by a prism which accompanies the screen movements. The depth of the foreign body is obtained as follows. A socket j, Fig. 5, is attached to one side of the screen, which can be swung aside a fixed angle by means of a butt hinge, so that the socket occupies the position of the mark I on the screen, and a graduated metal rod O is passed through the socket to touch the patient's body. According to the Specification as open to in. spection under Sect. 91 (3) (a) a ring passes over the rod 0 and is connected by a cord passing over pulleys to the plate P and indicates zero on the scale O when the rod is on the line F, F<1> and indicates the depth of the foreign body when the rod O is raised on the patient body. It is also stated that two butt hinges may be provided, and photographic exposure taken for localization by known sytems which require a fixed and known diaplacement of tube. This subject-matter does not appear in the Specification as accepted.
Patent GB-765025-A (GB)
Title: Process for the catalytic dehydrogenation of hydrocarbons
IPC: B01J8/06
Filed: 1955-03-10
Abstract: <PICT:0765025/IV(b)/1> In dehydrogenating hydrocarbons in the presence of superheated steam with the aid of a furnace having tubes containing a dehydrogenation catalyst and kept by external heating at the requisite dehydrogenation temperature, the temperature is maintained substantially uniform over the whole catalyst region by preheating the hydrocarbon and mixing it, shortly before its entry into the furnace, with sufficient superheated steam to produce the dehydrogenating temperature, passing the mixture through a layer of the dehydrogenation catalyst situated above the tubes, and then passing the mixture into the tubes at the moment when the heat content of the mixture is no longer sufficient for the dehydrogenation.  In the apparatus of Fig. 2, for the 38-39 per cent conversion of ethylbenzene to styrene, furnace tubes 2 are filled with a catalyst consisting of ferric, magnesium, copper, and potassium oxides and there is a layer 6 of this catalyst above the tubes; a mixture of ethylbenzene vapour and steam in the ratio by weight 1:1.3, introduced at a, is preheated to 579 DEG  C., and the reaction mixture leaving the tubes at c is at 588 DEG  C.
Patent GB-1135021-A (GB)
Title: An improved method of and means for preparing a stock of material for dipoles
IPC: H01Q15/14
Filed: 1952-03-18
Abstract: 1,135,021. Packaging sheet material. MOLINS MACHINE CO. Ltd., and D. W. MOLINS. 16 March, 1953 [18 March, 1952], No. 7033/52. Heading B8C. [Also in Division H4] A method of making di-pole stock comprises feeding continuous webs of metallic foil, slitting the web lengthwise into strips, feeding wrapping material so that the strips and the wrapping material engage, and enclosing the moving strips in the moving wrapper to form continuous di-pole stock of a flat or flattish cross-section. In one arrangement, Fig. 2, webs 5 of aluminium foil are fed from reels 6 through a slitting unit 7 to a pair of feeding rollers 10, 11 where they are placed, together with other slit aluminium webs from other slitting units 7, on a paper web 2. An upper paper web 1 passes from a reel 17 past an adhesive applying roller 19 to a guide roller 18 which directs it into contact with the upper layer of foil strips; the di-pole stock then passes a heating device 20 and a final pair of pressure rollers 10A and 11A and is wound on to a stock drum or bobbin (not shown). The stock has the cross-section shown in Fig. 1, with strips 4 of aluminium foil sandwiched between paper webs 1 and 2 which are gummed together at the edges 3. In a modification the foil strips are wrapped by a single paper web which is folded to the shape shown in Fig. 9.
Patent GB-901100-A (GB)
Title: Improvements in control mechanism for circular knitting machines
Inventor: WAINWRIGHT CARLYLE HERBERT
IPC: D04B9/26
Filed: 1959-02-28
Abstract: 901,100. Knitting-machines. BENTLEY ENGINEERING CO. Ltd. Feb. 28, 1959, No. 7049/59. Class 74 (2). Control mechanism is provided in a circular machine, for example, for controlling the yarn guides, clamping and severing mechanism or bolt cams for the needles, and comprises a series of cam packs each of which consists of at least one rotatable cam 26, 27 secured to a ratchetwheel 23. The cam packs are each mounted and revolve about a common axis, and are actuated by pawls 19. The pawls are pivotally mounted in a carrier 18 which is continuously oscillated by an eccentric 14 so as to cause the pawls when engaged with their ratchets to rotate the cams. For the purpose of selectively controlling the cams, the pawls are rendered operative or inoperative by their tails 19a engaging levers 21 which are raised or lowered by cam discs a<SP>1</SP> . . . h<SP>1</SP>, thereby causing the pawls to engage or otherwise their respective ratchet as they are advanced by the carrier 18. The discs are rotated by a lever 48 actuated from a pattern chain turning the shaft on which the discs are mounted through a chain 47 connected to the arm at one end and a boss 42 at the other. Specifications 601,677, 699,015 and 876,794 are referred to.
Patent GB-1527562-A (GB)
Title: Substituted-methyl-11-cyano-9,10-dihydroethanoanthracene-11-carboxylates useful as intermediates
IPC: C07C255/45
Filed: 1976-04-22
Abstract: 1527562 Substituted methyl cyano-ethanoanthracene-carboxylates ETHICON Inc 22 April 1976 [23 April 1975] 07051/78 Divided out of 1527561 Heading C2C The invention comprises compounds of the general formula wherein R is a (C 1 -C 12 ) organic radical and (D) is a cyclic 1,3-diene of the formula Their proportion and use in preparation of substituted-alkyl 2-cyanoacrylates. The preparation of intermediates is also described.
Patent GB-278250-A (GB)
Title: Improvements in or relating to aircraft
IPC: B64C23/00
Filed: 1927-03-14
Abstract: 278,250. MacVicar, J. L. March 14, 1927. Helicopters; propelling; planes, arrangement of.-The machine comprises a frame 1 including vertical plate brackets 3, 4 of large surface which act as stabilizing fins. Propellers are arranged as shown and are driven from a central motor 20 by shafting enclosed in tubes.
Patent GB-1412443-A (GB)
Title: Dies for use in the making of heat exchangers
Inventor: KUN L C
IPC: B21D53/04
Filed: 1972-10-13
Abstract: 1412443 Making dies UNION CARBIDE CORP 13 Oct 1972 [15 Oct 1971] 7127/75 Divided out of 1412442 Heading B5A A method of making a die to be used for deforming a thin sheet of material (metal or non-metal) by pressing, stamping or rolling comprises securing under tension a flexible membrane 29 over a recess provided in a block 21 with the membrane in contact with a plurality of supports 26 (e.g. pins, see Fig. 2A) spaced apart in a predetermined pattern and extending upwardly from the bottom 33 of the recess, applying a fluid pressure differential across the membrane to urge the unsupported portions thereof between the supports towards but not into contact with the base 33 of the recess, depositing a form setting material 34 on to that surface of the membrane 29 remote from the supports 26, curing the said material, removing the applied pressure differential, and then removing the cured setting material, said cured material 34 constituting the die. As shown in Fig. 2, the membrane 29 (e.g. a rubber sheet) is clamped at its periphery by clamping means 30, 31. Suction is then applied by a vacuum pump 24 via ducts 22 in the block 21 to the underside of the membrane which is thereby sucked downwardly between the projections 26 and assumes the shape such as shown in Fig. 2B and determined by the spacing of the supports 26. Thereafter the die-forming material 34 (e.g. expoxy resins, thermoplastics, cement or concrete) is deposited on the membrane and cured. After curing, the block of material 34 is removed from the block 21 and may be used as a master cast for the fabrication of a mould, or it may be used as a die with or without a suitable coating for providing a profile such as bubble-shaped protrusions (e.g. Figs. 6, 7) on sheet of material used in the fabrication of heat exchangers. Such sheet material may comprise metal, e.g. aluminium, copper, steel, or brass, clad metals, plastics or plasticscoated metals.