 On deck protected" the cylinders shall be protected from the direct rays of the sun by means of structural erections or awnings. Tarpaulins covering cylinders and in contact therewith are not considered adequate protection. Protection by use of wood dunnage...  Manual of Topographic Methods - Seite 49von Henry Gannett - 1906 - 88 SeitenVollansicht - Über dieses Buch
 | Maryland Geological Survey - 1898 - 628 Seiten
...observed in the measurement of all horizontal angles in the primary triangulation. EIGHT-INCH THEODOLITE. The instrument should have a stable support, which...a tent fly. It should also be shielded from winds which may jar or twist either it or its support. The foot screws of the instrument after it is leveled... | |
 | Maryland Geological Survey - 1898 - 628 Seiten
...observed in the measurement of all horizontal angles in the primary triangulation. EIGHT-INCH THEODOLITE. The instrument should have a stable support, which...a tent fly. It should also be shielded from winds which may jar or twist either it or its support. The foot screws of the instrument after it is leveled... | |
 | Maryland Geological Survey - 1898 - 646 Seiten
...INSTRUCTIONS FOR THE MEASUREMENT OF HORIZONTAL ANGLES. MARYLAND GEOLOGICAL SURVEY. EIGHT-INCH THEODOLITE. The instrument should have a stable support, which...a tent fly. It should also be shielded from winds which may jar or twist either it or its support. The foot screws of the instrument after it is leveled... | |
 | Maryland Geological Survey - 1898 - 630 Seiten
...INSTRUCTIONS FOR THE MEASUREMENT OF HORIZONTAL ANGLES. VOLUME II, PLATE XXXIX. EIGHT-INCH THEODOLITE. The instrument should have a stable support, which...a tent fly. It should also be shielded from winds which may jar or twist either it or its support. The foot screws of the instrument after it is leveled... | |
 | Maryland Geological Survey - 1898 - 626 Seiten
...THEODOLITE. The instrument should have a stable support, which may be a stone pier, a wooden post, or a pood tripod. If a portable tripod is used, its legs should...a tent fly. It should also be shielded from winds which may jar or twist either it or its support. The foot screws of the instrument after it is leveled... | |
 | Henry Gannett - 1906 - 644 Seiten
...of fine threads in the field of the microscope. INSTRUCTIONS FOR MEASUREMENT OF HORIZONTAL ANGLKS. The following general precautions should be observed...it is leveled for work, should be tightly clamped. Ix>oseness of the foot screws and tripod is a common source of error, especially with small instruments.... | |
 | 1910 - 256 Seiten
...PROTECTION OF WORK. The fresh coat of stucco should be kept from drying out too quickly and the wall should be protected from the direct rays of the sun by means of damp canvas or by sprinkling. This is an important point, as the stucco coat should be kept moist for... | |
 | Geological Survey (U.S.) - 1893 - 390 Seiten
...threads in the field of the microscope. Flo. 7.— Eight-inch Theodolite, detail. INSTRUCTIONS FOR THE MEASUREMENT OF HORIZONTAL ANGLES. The following general...a tent fly. It should also be shielded from winds which may jar or twist either it or its support. The foot screws of the instrument after it is leveled... | |
 | 1943 - 1222 Seiten
...carried "On deck" over holds containing coal. (5) When stowed "On deck protected" the cylinders shall be protected from the direct rays of the sun by means of structural erections or awnings. Tarpaulins covering cylinders and in contact therewith are not considered... | |
 | 1964 - 900 Seiten
...carried "On deck" over holds containing coal. (e) When stowed "On deck protected" the cylinders shall be protected from the direct rays of the sun by means of structural erections or awnings. Tarpaulins covering cylinders and in contact therewith are not considered... | |
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