 | American Society of Civil Engineers - 1903 - 896 Seiten
...accomplished by placing them on a rack over water contained in a pan and covered with a damp cloth, the cloth to be kept away from them by means of a wire...screen; or they may be stored in a moist box or closet. 43. — Care should be taken to keep the needle clean, as the collection of cement on the sides of... | |
 | Myron Samuel Falk - 1904 - 202 Seiten
...accomplished by placing them on a rack over water contained in a pan and covered with a damp cloth, the cloth to be kept away from them by means of a wire...screen; or they may be stored in a moist box or closet. 43.— Care should be taken to keep the needle clean, as the collection of cement on the sides of the... | |
 | 1904 - 430 Seiten
...accomplished by placing them on a rack over water contained in a pan and covered with a damp cloth, the cloth to be kept away from them by means of a wire...screen; or they may be stored in a moist box or closet. 43. Care should be taken to keep the needle clean, as the collection of. cement on the sides of the... | |
 | Myron Samuel Falk - 1904 - 198 Seiten
...accomplished by placing them on a rack over water contained in a pan and covered with a damp cloth, the cloth to be kept away from them by means of a wire...screen; or they may be stored in a moist box or closet. 43. — Care should be taken to keep the needle clean, as the collection of cement on the sides of... | |
 | Ohio. Division of Geological Survey - 1904 - 416 Seiten
...accomplished by placing them on a rack over water contained in a pan and covered with a damp cloth, the cloth to be kept away from them by means of a wire...screen; or they may be stored in a moist box or closet. 43. Care should be taken to keep the needle clean, as the collection of cement on the sides of the... | |
 | Charles Carroll Brown - 1905 - 440 Seiten
...accomplished by placing them on a rack over water contained in a pan and covered with a damp cloth, the cloth to be kept away from them by means of a wire...; or they may be stored in a moist box or closet. 25. Care should be taken to keep the needle clean, as the collection of cement on the sides of the... | |
 | Edwin Clarence Eckel - 1905 - 796 Seiten
...into the mass. PHYSICAL PROPERTIES OF PORTLAND CEMENT. 609 in a pan and covered with a damp cloth, the cloth to be kept away from them by means of a wire...screen; or they may be stored in a moist box or closet. 43. Care should be taken to keep the needle clean, as the collection of cement on the sides of the... | |
 | Portland Cement Association - 1905 - 44 Seiten
...accomplished by placing them on a rack over water contained in a pan and covered with a damp cloth, the cloth to be kept away from them by means of a wire...screen; or they may be stored in a moist box or closet. 43.—Care should be taken to keep the needle clean, as the collection of cement on the sides of the... | |
 | W. Purves Taylor - 1905 - 344 Seiten
...accomplished by placing them on a rack over water contained in a pan and covered with a damp cloth, the cloth to be kept away from them by means of a wire...screen; or they may be stored in a moist box or closet. 43. — Care should be taken to keep the needle clean, as the collection of cement on the sides of... | |
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Care should be taken to keep the needle clean, as the collection of cement on the sides of the needle retards the penetration, while cement on the point reduces the area and tends to increase the penetration. 
