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The Bulletin of the Airplane Engineering Department, U.S.A.

Author: United States. Bureau of Aircraft Production. Airplane Engineering Department
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 556

Book Description

The Bulletin of the Airplane Engineering Department, U.S.A.

Author: United States. Bureau of Aircraft Production. Airplane Engineering Department
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 556

Book Description

The Bulletin of the Experimental Department, Airplane Engineering Division, U.S.A.

Author: United States. Bureau of Aircraft Production. Airplane Engineering Division. Experimental Department
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 458

Book Description

The Bulletin of the Airplane Engineering Department, U.S.A., June, 1918-Jan. 1919

Author: United States. Bureau of Aircraft Production. Airplane Engineering Division
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages :

Book Description

The Bulletin of the Airplane Engineering Department, U. S. a Volume 2

Author: United States. Bureau Of Dept
Publisher: Rarebooksclub.com
ISBN: 9781230106519
Category :
Languages : en
Pages : 198

Book Description
This historic book may have numerous typos and missing text. Purchasers can usually download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1918 edition. Excerpt: ...constituents by the hot water. More raw material is added from time to time, until a sample of the liquid shows it to be of the right strength. When the desired density is obtained the liquor is clarified in the same way as described for bone glue. Flnal Treatment of Bone and Hide Glues Concentration, drying and bleaching are the final steps in the manufacture of glue by any of the above methods. The liquor, after being obtained by any of these processes, is concentrated in a vacuum pan heated by steam. Solutions of glue are very susceptible to change by prolonged boiling at atmospheric pressure, and if the glue liquors were evaporated in an open vessel at 100 G. (212 F.), the product would be of inferior quality and dark in color. For this reason it is necessary to evaporate the liquors at a lower temperature than the boiling point of water, which is achieved by lowering the pressure. Multiple evaporators are employed in which the steam from one pan is used to heat the next, and so on. The concentrated gelatin liquor is allowed to cool, and when it sets to a jelly is cut into sheets of any desired thickness. The processes of cooling and drying the glue require great care. Frequently whole batches will be spoiled, due to causes which are not always clearly understood. The liquor must be cooled quickly, as the liquefying bacteria will rapidly injure the glue if the cooling process is prolonged. Refrigerating machines are therefore used, so as to obtain a temperature of about 0 G. This is about the lowest temperature it is safe to use, as below this point the jelly becomes too hard and difficult to cut. After being cut into_ sheets, the solidified jelly is dried by spreading the sheets on metallic netting, preferably of galvanized iron...

The Bulletin of the Airplane Engineering Department, U. S. A. , Volume 1

Author: United States Bureau of Aircraft Produc
Publisher: Palala Press
ISBN: 9781346922850
Category :
Languages : en
Pages : 556

Book Description
This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it. This work was reproduced from the original artifact, and remains as true to the original work as possible. Therefore, you will see the original copyright references, library stamps (as most of these works have been housed in our most important libraries around the world), and other notations in the work.This work is in the public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work.As a reproduction of a historical artifact, this work may contain missing or blurred pages, poor pictures, errant marks, etc. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.

The Bulletin of the Airplane Engineering Department, U.S.A.

Author: United States. Bureau of Aircraft Production. Airplane Engineering Department
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 164

Book Description

The Bulletin of the Experimental Department, Airplane Engineering Division;

Author: United States Bureau of Aircraft Produc
Publisher: Palala Press
ISBN: 9781378502044
Category : History
Languages : en
Pages : 432

Book Description
This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it. This work was reproduced from the original artifact, and remains as true to the original work as possible. Therefore, you will see the original copyright references, library stamps (as most of these works have been housed in our most important libraries around the world), and other notations in the work. This work is in the public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work. As a reproduction of a historical artifact, this work may contain missing or blurred pages, poor pictures, errant marks, etc. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.