Manual of recommended practice for railway engineering and maintenance of way (1905)
American Railway Engineering and Maintenance-of-Way Association · Chicago, Ill. : The Association · leaf 79
ecause the cloth 66 MASONRY. may dry out unequally, and in conseqence the test pieces are not all main-tained under the same condition. Where a moist closet is not available, acloth may be used and kept uniformly wet by immersing the ends inwater. It should be kept from direct contact with the test… … FIG. 5.—FORM OF CLIP. kept wet. The bottom of the box is so constructed as to hold water, andthe sides are provided with cleats for holding glass shelves on which toplace the briquettes. Care, should be taken to keep the air in the closetuniformly moist. 45. After 24 hours in moist air, the test…
Railroad engineering · Railroads
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