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Aviation History
1923
1923 - 0140.PDF
THE CELLON " CERRIC " PRODUCTS WE referred last week, in connection with the British Indus- tries Fair just closed, to the " Cerric " products manufactured by Cellon (Richmond), Ltd. We now give more detailed particulars of these materials, which we hope will be of interest to our readers. While the " Cerric" materials are not entirely associated with aircraft work, there are many instances where they can be utilised with advantage in this connection. Furthermore, they are, to a certain extent, a development of the famous " Cellon" aircraft dopes and enamels, hence a reference to them in FLIGHT is not, we trust, out of place. Now, as to what " Cerric " products are. During the past twelve years or so, Cellon, Ltd., have carried out a considerable amount of research and laboratory work 'in the matter of the various cellulose constituents for the production and development of the " Cellon " dopes. The valuable knowledge thus obtained of the properties, etc., of the cellulose and other components employed, has enabled them to extend their application to other uses than that of doping aircraft fabrics—in other words, a means has been developed of " doping " a variety of articles in everyday use, thereby preserving their surface and also producing an artistic finish. "Cerric," therefore, is a species of "dope" for general use, and while different from the aeroplane dope and varying according to the particular use to which it is being put, its base is primarily cellulose, and its effect is to give to the article treated a thin, hard film over the surface. The various " Cerric " specialities, to suit different kinds of work, are as follows ;— " Cerric" Enamels.—For articles requiring a matt or highly-finished glossy surface, such as fancy boxes, tins, baskets, table tops, trays, ornaments, etc. The enamels, which are made in all colours, are easily and quickly applied by spray or dipping, and dry very rapidly with an " eggshell " finish, a glossy surface being obtained by buffing, or by a final coat of " Cerric " varnish. An important feature in connection with these enamels is that they are not affected by hot articles standing on them, nor by spirits, petrol, water and oil. Unglazed clay pottery can be very effectively treated with " Cerric," and the results are not only pleasing— equal in finish and artistic effect to any high-class fire-glazed pottery—but pottery so treated is water-proof. " Cerric " White Enamel, or " Porcelac."—This produces a porcelain-like surface, and being antiseptic and washable is specially suitable for surgical fittings, sanitary and hospital furniture, bath-room fittings, etc. " Cerric " Black Enamels.—These give " dead matt," " matt," " semi-matt," or " glossy " finishes. They do not require stoving and do not chip or crack, and are thus very suitable for motor or aviation accessories, lamps, instruments and woodwork. " Cerric " Lacquers.—These are suitable for all kinds of lacquer work, and are easily applied by spray, brush or dipping. They are colourless, and do not affect the colour of any metal article so treated. Coloured lacquers in all shades of gold, or any special colour, are also made. " Cerric " Wood Solutions.—These take the place of French polishing, exactly similar finishes being obtained without the long and tedious—to say nothing of the skilful— process associated with French polishing. They are trans- parent, and are applied by spray, the wood having first been treated with " Cerric " wood filler (by spray) and stained the desired shade. A final highly-polished finish is obtained either by buffing or by the usual method of hand polishing. It is of interest to note that wood surfaces treated by this " Cerric " method may, when and if necessary, be " brightened up " with ordinary French polish. As with other " Cerric " mediums, these " Cerric " wood solutions withstand the action of spirit, water, petrol, etc., and are not afiected by the contact with hot articles—which is not the case with French polish. " Cerric" Bronzing Mediums.—These are for finishing picture frames, mouldings, mounts, furniture, fancy goods, etc. A metallic powder of any desired shade is mixed with " Cerric " Medium and applied to the article by spray, or, with a special medium, by brush or rollers, and a beautiful finish is obtained which will not crack or chip, nor rust or tarnish. " Cerric " Leather Solutions.—These are supplied in black and all colours, and leather treated with them is preserved and will not lose its flexibility. Artificial leather solutions, for leather cloth and leatherette paper, are also supplied in all colours, waterproof and flexible. Other " Cerric " products consist of wall-paper solutions, matt, glossy and waterproof ; paper varnishes for posters, show cards, etc. ; transparent colours for electric lamp bulbs, etc. MARCH 8, 1923 SOCIETY OF MODEL AERONAUTICAL ENGINEERS (London Aero-Models Association) THE Annual General Meeting will be held at Headquarters on Friday, March 16, 1923, at 7.30 p.m. On March 23, Mr. A. F. Houlberg will give a lecture, his subject being " Power Plants for Model Aeroplanes." It is hoped that Members will make an effort to be present The programme for 1923 has been submitted by the Sub-Committee and passed by the General Purposes Com- mittee. It is now in the printer's hands. A Challenge Cup has been presented to the Society by Mrs. S. Jones, and it was unanimously agreed that it should be known as the S.M.A.E. Cup. A hearty vote of thanks was passed to the donor for making such a magnanimous gift. The Editor of the Model Engineer has presented a cup in appreciation of the collective display of models loaned by the Members of the S.M.A.E. at the last Model-Engineer exhibition. This has been greatly appreciated by the Members, and a hearty vote of thanks passed to Mr. Percival Marshall. -....--. ..•.•,;..^-.r. •y.-::^,.- A. E. JONES. -' — - j Hon. Sec. •'. _ •-"••• * * * * PUBLICATIONS RECEIVED. Aeronautical Research Committee,- Reports and Memoranda. No. 793 (Ae. 50). On a Method for the Direct Design of Framed Structures having Redundant Bracing. By A. J. Sutton Pippard, M.B.E. May, 1922. London : H.M. Stationery Office, Kingsway, W.C. Price Ad net; by post 41td. Militarwissenschaftliche und Techmsche Mitteilungen (Fortset sung der M.A. u. G.). January-February, 1923. Vienna: Getreidmarkt 9. Miisu Zinynas, Karo Mokslo ir istorijos Surnalas. Vol. III. No. 9. Laisves Aleja 12, Kaunas. « M K & AERONAUTICAL PATENT SPECIFICATIONS Abbreviations : cyl. — cylinder ; I.C. = internal combustion ; m. — motor The numbers in brackets are those under which the Specifications will be printed and abridged, etc. APPLIED FOR IN 1921Published March 8, 1923 21,038. A. CHESSIN. Speed-indicators for aircraft, etc. (167,503.)29,303. G.HORN. Device for training pilots and observers. (192 754.) 29,910. J. B. PASSAT. Means for varying and controlling pitch of screw propellers. (192,784.) 30,563. J. L. DEMARTINI. Revolving-cylinder I.C.m. (192,811.) 81,068. RAUL, MARQUIS OF PATEKAS PESCARA. Screw propellers for heli-copters. (171,706.) 83,932. H. JUNKERS. Starting of I.C. engines. (179,508.) APPLIED FOR IN 1922Published March 8, 1923. 2,465. A. SEAY. Screw propellers. (192,908.)10,316. H. O. SHORT. Construction of wings, etc. (192,966.) NOTICE TO ADVERTISERS All Advertisement Copy and Blocks must be delivered at the Offices of " FLIGHT," 36, Great Queen Street, Kingsway, W.C. 2, not later than 12 o'clock on Saturday in each week for the following week's issue. If you require anything pertaining to aviation, study "FLIGHT'S" Buyers' Guide and Trade Directory, which appears in our advertisement pages each week (see pages iii and xiv). Jv^-^--:.: FLIGHT The Aircraft Engineer and Airships 36, GREAT QUEEN STREET, KINGSWAY, W.C. 2. Telegraphic address : Truditur, Westcent, London. Telephone : Gerrard 1828. SUBSCRIPTION RATES " FLIGHT " will be forwarded, post free, at the following rates :— UNITED KINGDOM | ABROAD* s. d. j s. d. 3 Months, Post Free... 773 Months, Post Free... 8 3 6 ,," „ ...15 2 • 6 „ „ ...16 6 12 „ 30 4 I 12 „ <, ...33 6 These rates are subject to any alteration found necessary under abnormal conditions and to increases in postage rates. • European subscriptions must be remitted in British currency Cheques and Post Office Orders should be made payable to the Proprietors of " FLIGHT," 36, Great Queen Street, Kingsway, W.C. 2, and crossed London County and Westminster Bank, otherwise no responsibility will be accepted. ( 140
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