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Document Max. Freq Min. Freq
Thomas Wentworth Higginson, Massachusetts in the Army and Navy during the war of 1861-1865, vol. 1: prelminary narrative 4 0 Browse Search
Knight's Mechanical Encyclopedia (ed. Knight) 4 0 Browse Search
The Daily Dispatch: January 22, 1861., [Electronic resource] 2 0 Browse Search
Medford Historical Society Papers, Volume 12. 2 0 Browse Search
Capt. Calvin D. Cowles , 23d U. S. Infantry, Major George B. Davis , U. S. Army, Leslie J. Perry, Joseph W. Kirkley, The Official Military Atlas of the Civil War 2 0 Browse Search
Horace Greeley, The American Conflict: A History of the Great Rebellion in the United States of America, 1860-65: its Causes, Incidents, and Results: Intended to exhibit especially its moral and political phases with the drift and progress of American opinion respecting human slavery from 1776 to the close of the War for the Union. Volume II. 2 0 Browse Search
Rebellion Record: a Diary of American Events: Documents and Narratives, Volume 10. (ed. Frank Moore) 1 1 Browse Search
Rebellion Record: a Diary of American Events: Documents and Narratives, Volume 6. (ed. Frank Moore) 1 1 Browse Search
Official Records of the Union and Confederate Armies, Chapter XXII: Operations in Kentucky, Tennessee, North Mississippi, North Alabama, and Southwest Virginia. March 4-June 10, 1862. (ed. Lieut. Col. Robert N. Scott) 1 1 Browse Search
Robert Underwood Johnson, Clarence Clough Buell, Battles and Leaders of the Civil War: Volume 2. 1 1 Browse Search
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Browsing named entities in Knight's Mechanical Encyclopedia (ed. Knight). You can also browse the collection for Marvin or search for Marvin in all documents.

Your search returned 2 results in 1 document section:

Knight's Mechanical Encyclopedia (ed. Knight), S. (search)
s safe, in which the plates are dovetailed together, and angle-irons are tenoned into the corners to make them mutually sustaining. Fire-proof safe with water-jacket. Fig. 4531 is a safe having hollow walls connected with the city main. Marvin's burglarproof safe (a b, Fig. 4532) is of globular form, having no salient points to facilitate the action of a tool for opening it. It is made of chromeiron, whose extreme hardness renders it impervious to the drill, and the door, which is conis shown at c. The fire-proofing material is a composition of calcined plaster of Paris and alum, which, on being heated, gives up its water of crystallization; this is converted into steam, which prevents access of fire to the interior. A b c, Marvin's spherical safe; d, coin-safe. The portable coin-safe (d, Fig. 453) is of castiron, and opens in the middle like a portmanteau. The two halves are secured together by screws a a, and have depressions b b to receive seals. The inside has a