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1. 发明专利

GB1081953A Improvements in the copy paper employed in electrostatic copying 未知
公开(公告)号：GB1081953A
公开(公告)日：1967-09-06
申请号：GB3153764
申请日：1964-08-04
申请人： FREDERIC GEORGE LUDWIG
IPC分类号： G03G7/00 , G03G15/30
摘要： 1,081,953. Laminates. F. G. LUDWIG. Aug. 4, 1964 [Aug. 16, 1963], No. 31537/64. Heading B5N. [Also in Division G2] The copy paper for use with a xerographic copying machine comprises a thin imagereceiving sheet separably laminated to a thicker and stiffer carrier sheet whereby the paper is rigidified for easier passage through the machine. The thin sheet may be of tracing paper, rag stock paper, or a clear or matte surfaced plastics sheet, e.g. of polyester resin, and may be used subsequently as a Diazo master.

3. 发明专利

GB189921747A A New or Improved Medicinal Compound. 未知
公开(公告)号：GB189921747A
公开(公告)日：1900-05-05
申请号：GB189921747D
申请日：1899-10-31
申请人： SCHAEFER GEORGE LUDWIG
发明人： SCHAEFER GEORGE LUDWIG
摘要： 21,747. Schaefer, G. L. Oct. 31. Antiseptics; medicinal preparations.-Relates to new antiseptic medicinal compounds which are free from noxious and irritant properties, and consists of metallic salts, such as the bismuth, strontium, lithium, and iron salts of the sulphonic acids of phenols, such as carbolic acid, guaiacol, or #-naphthol. These compounds are prepared by acting upon the phenol with excess of concentrated sulphuric acid until a clear solution is obtained, then separating the phenol sulphonic acid from the excess of unaffected phenol by extracting the latter with benzene or the like, and finally separating the sulphonic acid from the excess of sulphuric acid and converting it into one of the above-mentioned metallic salts. For example, the sulphuric acid is precipitated as an insoluble lead, calcium, or barium salt, and the remaining sulphonate solution is converted into the required salt by double decomposition. Or, if only sufficient base is used to precipitate the sulphuric acid, the free sulphonicacid remaining is neutralized with the carbonate, hydrate, or oxide of the required metal.

4. 发明专利

GB189708227A A New or Improved Manufacture of Guaiacol Compounds. 未知
公开(公告)号：GB189708227A
公开(公告)日：1897-11-13
申请号：GB189708227D
申请日：1897-03-30
申请人： SCHAEFER GEORGE LUDWIG
发明人： SCHAEFER GEORGE LUDWIG
摘要： 8227. Schaefer, G. L. March 30. Antiseptics; medicinal preparations.-Guaiacol sulphonates of alkaloids, which are free from the objectionable odour and caustic effects of guaiacol and permit of medicinal administration in considerable quantities, are prepared as follows:- Guaiacol sulphonic acid is obtained by heating guaiacol with sulphuric acid upon a water bath, diluting with water, forming an alkaline or alkaline-earth salt, and then liberating the sulphonic acid therefrom by a suitable mineral acid. The sulphonic acid is then combined with an alkaloid, such as quinine, cinchonine, or the like, either with one molecular proportion to form a neutral salt, or with half a molecular proportion to form an acid salt. The combination is effected by evaporating solutions of the alkaloid in diluted guaiacol sulphonic-acid solution, or by reacting with a metallic guaiacol sulphonate upon an alkaloid salt. The products combine the antipyretic properties of the alkaloid with the antiseptic and antifebrile properties of guaiacol.

9. 发明专利

GB191216631A Improvements in Machines for Dressing Flour and the like. 未知
公开(公告)号：GB191216631A
公开(公告)日：1913-05-01
申请号：GB191216631D
申请日：1912-07-16
申请人： HEIDENREICH JOHN GEORGE LUDWIG
发明人： HEIDENREICH JOHN GEORGE LUDWIG
IPC分类号： B07B1/24 , B07B1/54 , B07B13/16
摘要： 16,631. Heidenreich, J. G. L. July 16. Rotary sieves. - In centrifugal machines for dressing flour of the type having beaters mounted on a number of rotary shafts disposed in troughs arranged round the axis of the central shaft d, one side f of each trough is shorter than the other, whereby the flour is scooped up from the bottom of the screen g as the drum rotates. The beaters f are formed with screw curves so as to convey the material along the screen towards the discharge end of the troughs. The troughs are mounted on a frame e, and the pinions i on the beater shafts gear with a fixed pinion h. The wheel h may be replaced by an internally-toothed rim. Means for adjusting the beaters are also provided.

10. 发明专利

GB2081773A Structure erection 未知
公开(公告)号：GB2081773A
公开(公告)日：1982-02-24
申请号：GB8123366
申请日：1981-07-30
申请人： LAFRENZ EDMUND GEORGE LUDWIG
IPC分类号： E04B1/35 , E04B1/76 , E04B2/86 , E04F13/04 , E04B1/16 , E04G11/06
摘要： A structural carrier used in the construction and renovation of walls. The carrier consists of a continuous sheet (10, 40) of corrosion-resistant moisture proof material e.g. of plastics which is formed with a number of parallel formations (12, 42) which are undercut and which define keying formations for a cementitious covering (28, 46) material which is applied to the carrier.

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