baber/WOPTO huggingface dataset:
Patent GB-743456-A (GB)
Title: Improvements relating to the addition of magnesium to iron
IPC: C21C1/10
Filed: 1953-10-27
Abstract: 743,456. Adding magnesium to iron; spheroidal graphite cast iron. MOND NICKEL CO., Ltd. Oct. 27, 1953 [Oct. 27, 1952], No. 29723/53. Classes 72 and 82(1). Magnesium is introduced in elementary or alloy form into molten iron by charging the iron into a vessel capable of resisting substantial pressure, introducing the magnesium in solid form into the vessel but out of contact with the iron, closing the vessel and bringing the magnesium and iron into contact e.g. by turning the vessel about a horizontal axis. The Figure shows a drum ladle 1 mounted for rotation about a horizontal axis on bearings 4. The ladle is charged with molten iron to level A and a lid 7, from which is suspended solid magnesium in a sheet iron wrapping 13, is clamped over opening 6 by means of yoke 11, engaging under lugs 17, and a screw 10. The drum is turned through 180 degrees so that the whole of the inner wall of the drum is swept by molten metal and its inner surface raised above the condensation point of magnesium which dissolves in the melt. The drum may be rotated continuously during the dissolving process. The magnesium, in a further modification, may be placed in a pocket in the drum wall above the level of molten metal and is dissolved as described above by rotating the drum.
Patent GB-324090-A (GB)
Title: The manufacture of sulphonic acids of the nitro-halogen-diaryl-ketones and -sulphones
IPC: C07C309/44
Filed: 1928-10-15
Abstract: 324,090. Carpmael, A., (I. G. Farbenindustrie Akt.-Ges.). Oct. 15, 1928. Sulphonic acids of nitrohalogendiaryl-ketones and sulphones and substitution products thereof containing labile halogen atoms are made by sulphonating compounds of the stated type. By exchange of the mobile halogen atoms with compounds containing reactive hydrogen atoms combined with nitrogen, oxygen or sulphur atoms, by replacement of such halogen atoms by hydroxy groups or by reduction of the nitro groups, or by enacting both of the latter operations in the order given intermediates for dyes are obtained. In examples, (1) 3-nitro-4-chlorobenzophenone is treated with 20 per cent oleum; the sulphonic acid is condensed with aniline and the 3-nitro-4- phenylaminobenzophenone-3<1>-sulphonic acid thus obtained is reduced to the amino compound; instead of aniline may be used 4-methoxy-1-aminobenzene, dimethylamine, ethylenediamine and the like; as starting materials may be also used 3-nitro-4-chloro-2<1> : 4<1>-dimethyl-benzophenone + 3- nitro-4 : 4<1>-dichlorobenzophenone. (2) 4-chloro-3- nitro-4-methoxybenzophenone, 5-nitro-2-chlorobenzophenone, 3 : 5-dinitro-2 (or 4)-chlorobenzophenone, 3-nitro-3-chloro-1 : 1<1>-diphenylsulphone and 5 - nitro - 2 - chloro-1 : 1<1>-diphenylsulphone and 5- nitro-2-chloro-1:1<1> diphenylsulphone are sulphonated with 20 per cent oleum; 3-nitro- 4-bromo-benzophenone is also specified as starting material. (3) The chlorine atom of the o-chlornitrodiphenylsulphone-3<1>-sulphonic acid obtained in (2) is replaced by an hydroxy group by treatment with caustic soda and the nitro group reduced to form 3-amino-4-hydroxy-1 : 1<1>-diphenylsulphone-3<1>-sulphonic acid. (4) The 4-chlor-3- nitrodiphenylsulphone-3<1>-sulphonic acid obtained in (2) is condensed with p-thiocresol and the nitro group reduced. (5) 5-nitro-2-chlorodiphenylsulphone-3'-sulphonic acid is heated with ammonia under pressure forming the 2-amino compound which when diazotized and coupled with R-salt gives a violet dyestuff. (6) 5-nitro-2-chlorodiphenylsulphone-3<1>-sulphonic acid is condensed with sodium methylate to form 5-nitro-2-methoxydiphenylsulphone-3<1>-sulphonic acid which is reduced to the amino compound. The latter can be diazotized. 3 - Nitro - 4-chloro-4<1>-methoxybenzophenone is made from 3-nitro-4-chloro-1-benzoylchloride and anisole in presence of aluminium chloride. 3-Nitro-4-chlorodiphenylsulphone is made from 3-nitro-4-chlorobenzene-1- sulphochloride, benzene and aluminium chloride. 5-Nitro-2-chlorodiphenylsulphone is made similarly from 4-nitro-1-chlorobenzene-2-sulphochloride and benzene.
Patent GB-484171-A (GB)
Title: Improvements in or relating to a combined range-finder and view-finder for photographic cameras
IPC: G03B13/20
Filed: 1936-11-02
Abstract: 484,171. Range and view finders for photographic cameras. KODAK, Ltd. Nov. 2, 1936, No. 29740. Convention date, May 22. [Classes 97 (i) and 98 (i)] In a combined base - type viewfinder and rangefinder, the rangefinder objective comprises two members of differing refractive power with their adjacent faces curved about substantially the same centre of curvature, the member of greater power being fixed and the other member being pivoted about the said centre of curvature and coupled with the focusing movement of the camera objective to effect coincidence of the images. As shown in Fig. 1, the rangefinder comprises a viewfinder objective 8 observed through an eyepiece 19 and a semi-transparent mirror 6, and a rangefinder objective of equal focal length comprising a fixed double-concave lens 9 and a plano-convex lens 10 supported on arm 11 pivoted at 12 at the centre of curvature of the convex surface of the lens 10. Movement of the lens 10 to effect coincidence of the images is effected by the focusing movement of the camera objective slide 13 by a pin 35 on an arm 14 fixed to the side engaging a slot 16 in an arm 17 bearing a rotatable cam 31 against which the lens arm 11 is pressed by a spring 32. In a modification, the lens 9 may be concavo-convex and the lens 10 planoconcave. In the modification shown in Fig. 5, the two base reflectors 5, 6, instead of being parallel, are inclined to each other at an angle gamma, so that when the axes of the lenses 9, 10 are coincident the finder is focused, not for infinity, but for some intermediate distance.
Patent GB-644888-A (GB)
Title: Weft cutter for automatic weft replenishing looms
IPC: D03D49/70
Filed: 1947-11-08
Abstract: 644,888. Temple weft cutters. POLLARD (1923), Ltd., W., WILLIAMS, H., and LORD, A. Nov. 8, 1947, No. 29806. [Class 142 (iii)] A weft cutter comprises a blade D secured to a plate A on the end of the temple and a movable blade E pivoted at G and operated by a member R from a tappet on the bottom shaft of the loom. A spring N and loop of leather P retain the cutter in open position. A guide S fixed to the sley between the shuttle box and cutter engages the wefts from the depleted and full bobbins and draws them between the cutter blades as the sley moves forward.
Patent GB-1068797-A (GB)
Title: Acrylonitrile copolymers
Inventor: SZITA JENO
IPC: C08F20/34
Filed: 1965-07-14
Abstract: Novel copolymers comprising at least 80% by weight of units of acrylonitrile and, in addition, units of a urea compound of the formula <FORM:1068797/C3/1> wherein R represents an aromatic heterocyclic radical containing at least one hetero-nitrogen atom, n represents an integer from 2 to 4 and R1 represents a hydrogen atom or an alkyl group, and optionally units of another copolymerizable ethylenically unsaturated compound are prepared by polymerizing the corresponding monomers, in appropriate proportions, in an aqueous medium at a pH of 3 to 5 and a temperature of 10 DEG  to 70 DEG  C., preferably in the presence of a Redox catalyst system.  In the above formula R may be, for example, a substituted or unsubstituted pyridine, quinoline or s-triazine radical, and the urea compounds may be used in the form of salts or quaternary ammonium compounds. Suitable optional monomers include acrylate and methacrylate esters, e.g. methyl acrylate, vinyl acetate, vinyl chloride, vinylidene chloride, styrene, acrylamide and styrene sulphonic acid.  Suitable initiators for the polymerization process include hydrogen peroxide, alkali metal and ammonium persulphates and perphosphates, and hydroperoxides, preferably in admixture with reducing agents such as alkali metal and ammonium pyrosulphites or thiosulphates; small amounts of heavy metal compounds may also be included. Neutral salts such as alkali metal sulphates and phosphates may additionally be present, as may also polymerization regulators such as aliphatic mercaptans, e.g. thioglycol (hydroxy ethyl mercaptan). Polymerization can be effected continuously or batchwise.  The polymer products can be formed into mouldings, foils, films, filaments and fibres, which are readily dyed by both acidic and basic dyes. Spinning solutions can be obtained by dissolving the copolymers in suitable solvents, e.g. dimethylformamide, dimethylacetamide, dimethyl sulphoxide and butyrolactone.ALSO:Films and filaments composed of copolymers comprising units of acrylonitrile and a urea compound having one of the following formulae: <FORM:1068797/D1-D2/1> <FORM:1068797/D1-D2/2> <FORM:1068797/D1-D2/3> <FORM:1068797/D1-D2/4> and, in some cases, additionally methyl acrylate units are dyed with specified basic and acid dyes used in aqueous solution. Small amounts of acetic acid and sodium acetate are present in the basic dye solution, and sulphuric acid is included in the acid dye solution.
Patent GB-192781-A (GB)
Title: Improvements in direct and offset lithographic rotary machines
IPC: B41F11/00
Filed: 1921-11-09
Abstract: 192,781. Evans, A. B., and Payne, R. P. Nov. 9, 1921. Offset machines.-A rotary lithographic machine for printing direct or offset impressions, or for perfecting a sheet with a direct impression on one side and an offset impression on the other side comprises an impression or offset cylinder b fitted with two sets of grippers d, g arranged in front of surfaces b<1>, b<2> which may be fitted with offset or impression surfaces. The cylinders b coacts with a plate cylinder a of equal diameter, which is fitted with one or two printing-plates, and with a cylinder c of half diameter which delivers the printed sheets, and in the case of offset-printing acts also as an impression cylinder. For direct printing, the sheets are fed from the table e to the grippers d and the surface b<1> is fitted with an impression surface and only one printing plate used on the cylinder a. For offset printing the sheets are fed to the grippers g, and an offset-blanket used on the the grippers g, and an offset-blanket used on the surface b<1>. The surface b<2> carries the sheets without impression past the cylinder a and transfers them to cylinder c which carries them for one revolution without' impression, and then prints in conjunction with the surface b<1>. For printing both direct and offset impressions, the surface b<2> is fitted with an impression surface, and a direct impression before the offset one is effected in the manner described for single offset-printing. By employing a cylinder a of half the diameter of cylinder b a direct impression may be perfected by an offset one of the same design to print transparencies. In each case one sheet is printed for each revolution of the cylinder b. Tripping-arrangements which are operable by cam-and-levermechanism, under the control of the operator, to trip the cylinder b as desired. The movement of the eccentrics m is transferred by a link r to eccentrics t in which the cylinder c is mounted, so that the cylinders b, c, are tripped simultaneously.
Patent GB-896937-A (GB)
Title: Manufacture of leuco sulphuric acid esters of vat dyestuffs
IPC: C09B9/00
Filed: 1958-09-19
Abstract: Leuco sulphuric acid esters of vat dyestuffs are made by reacting the leuco compound of the vat dyestuff or a metal salt or complex compound thereof with sulphur trioxide or a compound yielding sulphur trioxide in the presence of a compound of the formula <FORM:0896937/IV (c)/1> <FORM:0896937/IV (c)/2> where R1 and R2 are alkyl groups.  A diluen may be present.  The leuco compound may be obtained by reacting the vat dyestuff with a metal and an anhydrous acid.  Specifications 274,156, 585,106 and 633,481 are referred to.
Patent GB-1184522-A (GB)
Title: Support Device.
Inventor: CHESLOCK EDWARD PAUL
IPC: E04H12/08
Filed: 1968-06-24
Abstract: 1,184,522. Bolting. E. W. BLISS CO. 24 June, 1968 [26 June, 1967], No. 30091/68. Heading F2H. A support assembly comprises a vertical pole 10 having at least one longitudinal groove 20 in its outer surface to receive the head 34 of a bolt 16 so that the shank of the bolt extends radially from the pole, the bolt head being so shaped that in one orientation it can be inserted into the groove before being rotated to a second orientation relative to the pole to effect locking engagement of the head with the side walls of the groove. As shown, the bolt head 34 is of oval cross-section and may be provided with peripheral serrations (36) (Fig. 6, not shown) and the shank 30 which is threaded at its free end may have a wrench engaging portion defined by flats (38). The bolt may be of steel and the pole may be of aluminium and more than one bolt may be employed to rigidly secure a sign or lamp bracket 12 to the pole 10.
Patent GB-780787-A (GB)
Title: A combined pump and motor assembly for liquid dispensing apparatus
IPC: B01D19/00
Filed: 1955-10-21
Abstract: <PICT:0780787/III/1> Air and vapour separated from gasoline in the delivery chamber 50 of a dispensing pump pass in the direction of the arrow C to a chamber 90 from which the air, vapour and condensed gasoline pass under the control of a float valve to a chamber 100 containing an air vent (not shown).  When dry-priming the float valve 95 is open to permit air and vapour to pass freely to the chamber 100 but accumulation of liquid in the chamber 90 closes the valve 95 so that liquid can pass to the chamber 100 only through a restricted orifice 99, which prevents passage of air and vapour, so that the air and vapour must pass down the hollow central stem 96 of the valve. When sufficient liquid has accumulated in the lower chamber 100 a further float valve (not shown) opens to permit liquid to be drawn back to the suction of the pump.
Patent GB-403790-A (GB)
Title: Improvements in or relating to thermally controlled switch operating mechanism
IPC: H01H73/24
Filed: 1932-10-27
Abstract: 403,790. Automatic circuit-breakers; actuation of switches. LELAND ELECTRIC CO., 1501, Webster Street, Dayton, Ohio, U.S.A.-(Assignees of Leland, G. H.; 1501, Webster Terrace, Dayton, Ohio, U.S.A.) Oct. 27, 1932, No. 30136. Convention date, Nov. 16, 1931. [Class 38 (v).] Operating mechanism for an electric switch includes a thermal member forming part of the mechanical connection between the switch and an operating handle, so that under abnormal temperature, the connection is interrupted, permitting the switch to be operated automatically by means of a spring. As applied to an automatic cut-out for controlling an enclosed electric motor 10, the actuating lever 19 of the switch 14 is engaged by a lever 18 of the mechanism attached to a shaft 17 freely rotatable within a hollow shaft 16 journalled in the motor casing. The shaft 16 is provided at one end with an operating handle 15, and at the other with a bimetallic strip 22 carrying a lug 23 which engages a pin 24 attached to the arm 18. A spiral spring 25 is connected between the shaft 17 and handle 15, and normally maintains the lug 23 and pin 24 in contact so that movement of the handle operates the switch. Under excessive temperature within the casing, the strip 22 bends and disengages the pin 24. Movement of the handle 15 being limited by a stop 28, the lever 18 is rotated by the spring 25 and opens the switch. The lug 23 has a bevelled edge so that movement of the lever 15 to the "off" " position allows re-engagement with the pin 24 when the temperature is again normal. In a modification, a heating coil included in the motor circuit is placed adjacent to the bimetallic strip, so that the mechanism serves also as an overload release.
Patent GB-448981-A (GB)
Title: Improvements in or relating to padlocks
IPC: E05B67/28
Filed: 1935-11-01
Abstract: 448,981. Padlocks. JONES & SONS (WILLENHALL), Ltd., E., and JONES, J. E., 36, Doctor's Piece, Willenhall, Staffordshire. Nov. 1, 1935, No. 30144. [Class 44] The curved bolt 6 of a circular padlock is pivoted at 7 and has a gap 8 which is entered by the key for direct operation of the bolt. A single tumbler 12 is pivoted at 3 and has a lateral projection 11 which engages with one or other of the recesses 9, 10 in the tail of the bolt. The forward end of the L-shaped tumbler is pressed downwards by a spring 13. The tail of the bolt and the tumbler are separated by a central ward plate 14. The casing is made in halves held together by rivets, and is formed with pips 1<c> to locate the ward plate and a bearing boss 1a to receive the pivot pin 7 which is formed integral with the bolt.
Patent GB-216452-A (GB)
Title: Improvements in or relating to fruit cutting machines
IPC: A23N4/12
Filed: 1923-11-30
Abstract: 216,452. Smart, C. R. Nov. 30, 1923. Cutting fruit. - A machine for cutting fruit in halves comprises a series of cup-like receptacles 14 carried by an endless belt 1 to bring fruits placed therein into contact with a rotary disccutter 9. The receptacle 14 comprises a pair of V-shaped members 15, Fig. 4, spaced apart to clear the cutter, and having bevelled inner surfaces 14<1> to centre the fruit. The belt 1 is supported on a table or guide-rails 8. The out fruit falls, guided by a shoot 17 and inclined board 18, to suitable receptacles.
Patent GB-208524-A (GB)
Title: Improvements in and relating to ovens
IPC: H05B3/64
Filed: 1923-11-30
Abstract: 208,524. Metropolitan-Vickers Electrical Co., Ltd., (Assignees of Woodson. J. C.). Dec. 13, 1923, [Convention date]. Air and gases, controlling circulation of; heating by electricity.-An oven for drying enamelled or japanned metal articles, comprises an inner rectangular frame-work consisting of angle-bars 22, 23 and floor, roof, and side panels formed of spaced metal plates enclosing heat-insulating material, such as mineral wool, the panels being secured against the frame-work by angle-bars 28, 29. The oven is ventilated by a fan 47 having pressure and suction duets 51, 52 respectively communicating with perforated ducts 39, 44 arranged longitudinally in the oven, the ends of the ducts 39 being open to the atmosphere. Above the air inlet ducts 39 are arranged electricheating elements 36, 37, which are mounted upon metal frames secured to the bars 23. Baffles 42 are provided above the ducts 39 to ensure that the cold air entering the chamber passes over the heating elements. The air may be circulated continuously through the oven or it may be exhausted through a pipe 53 connected to a chamber 48 which communicates with the pressure side of the fan. Specifications 24782/06, [Class 51, Furnaces and kilns]; 20975/14; and 173.565, [Class 51 (ii), Furnaces and kilns for applying &c.], are referred to.
Patent GB-305963-A (GB)
Title: Improvements in or relating to lighting apparatus
IPC: F21S10/00
Filed: 1927-11-10
Abstract: 305,963. Murray, G., and Simpkins, V. O. Nov. 10, 1927. Ornamental illuminations, lamps for.-In a lamp for decorative illuminations or for advertising purposes, light is projected through a diffusing and distributing member constituted by a transparent or translucent hollow body containing liquid in which a gas is generated or released to produce changing light effects. In the form shown in the Figure, light from an electric lamp bulb 1 is projected by a reflector 3 into a spherical vessel 4 containing a liquid 5 and provided at its top with a small hole for filling purposes and to allow of the escape of the gas. Preferably the liquid is an electrolyte and a pair of platinum or other electrodes 6, 6<a> are connected in series with the bulb 1 so as to generate gas by dissociation of the electrolyte. The latter may consist of slightly acidic water from which ozone is released, or water containing a pinch of glauber salts and small quantities of osin and erythrosine or fluorescin. The liquid may be coloured by means of a dye, such as congo red, and an indicator such as methylorange or phenol phthalein may be employed to produce more or less localized colour changes. Small particles may be suspended in the liquid to give irridescent effects. Either or both electrodes may be in the form of a word, design, or other advertisement, and the permanence of the electrolyte may be ensured by means of a buffer electrolyte. 'The electrodes, electrolyte, and current intensity may be so chosen as to cause a scintillating luminiseence over the surface of the electrodes. When alternating current is used the electrodes are connected to the secondary of a step-down transformer and the electric lamp bulb may be connected across the supply mains. A number of such lamps may be combined to produce a variety of colour changes.
Patent GB-1113741-A (GB)
Title: Lower link of implement-hitching device serving to hitch agricultural implements to tractors
IPC: A01B59/06
Filed: 1965-07-16
Abstract: 1,113,741. Tractor power lift mechanisms. KLÍCKNER-HUMBOLDT-DEUTZ A.G. 16 July, 1965 [2 Dec., 1964], No. 30295/65. Heading A1P. The lower draft links 11 of a tractor power lift mechanism are hollow and house a shaft 12 and ovoid head 15 of a member 13 which can be withdrawn from the link in order to facilitate the coupling of an implement to the ball joint 14. The ovoid head is retained in the link by a stop 31a but allows limited omnidirectional pivoting of the part 13. In use the part 13 is held rigidly with the link 11 by means of a spring catch 18 engaging a groove 17 in the head. In an embodiment a spring- biased sliding sleeve over the draft link 11 cushions the engagement of this link with the part 13.
Patent GB-799744-A (GB)
Title: Bobbin holders for winding machines
IPC: B65H16/06
Filed: 1955-10-24
Abstract: 799,744. Winding yarns. BARMER MASCHINENFABRIK AKT.-GES. Oct. 24, 1955 [Oct. 23, 1954], No. 30342/55. Class 120(2) In a bobbin winding machine having pivotable carrier stirrups which are rigid in themselves and bobbin pin holders of pincer-like construction which are arranged on the arms of the stirrup and whose jaws open and close automatically when the bobbins are disengaged from or engaged with the driving means, two carrier stirrups are mounted pivotally back to back on a common bracket and form a unit within whose fixed lateral limits there are disposed the common bracket, mounting means for the stirrups and the bobbin pin holders and any operating handles and locking means which hold or lock the stirrups and pin holders in the winding or the exchange position. As shown, stirrups 1 and 2 are pivoted on a common shaft 4 and the bracket and operating and locking means are within the lateral limits A of the stirrups. The pin holder consists of a double-armed lever 9 situated within the arm of the stirrup 2, one end of which is formed into a pawl which during winding closes the pin bearing 10, but when the bobbin is disengaged from the driving means, the other end abuts against a stop 12 and the pawl is lifted, opening the bearing 10 and releasing the bobbin. In the modification shown in Fig. 1, the stirrup 1 is held in the disengaged position by the support 13, pivoted on the stirrup arm, engaging the foot of the bracket 3. On lifting the arm slightly from the position, the support 13 swings free and comes to rest on the beam 14. In a second embodiment, the stirrup is held in non-operative position by a double lever pivoted on the arm of the stirrup 2, the rear end having a pawl to engage a rod attached to the brackets 3. Slight pressure on the free end of the lever returns the stirrups to engagement with the driving means. In a third embodiment a hook attached to the bracket 3 engages a recess in the stirrup arm to hold the stirrup 2 out of engagement with the driving means when the stirrup 2 is lifted upwards. The hook is released by a member sliding within the arm guided by a pin on the arm engaging a slot in the member and having an inclined surface to force the hook out of engaging and return the arm to the operative position, the slide being returned to its original position by a compression spring. Parts of the locking means are preferably of plastic material, e.g. polyamide or polymethane with metallic inserts.