. Military sketching and map reading. Fia. 19 MiLiTAET Sketching die of one end of the block saw out a slit ^ wide and extend-ing an inch and a half into the block. By means of wire nailsdriven as shown in Fig, 21c, attach the three legs to the Pig. so Flat Sketch 65 one leg in the slit and the remaining two legs at the other endof the block. Then drive a wire nail into the center of the bot-tom of the block; the nail being of sufficient length so thatit will protrude % out of the block. (See Fig. 21c.)When all of this has been completed, you will have a tripodsomething like Fig. 21d.
. Military sketching and map reading. Fia. 19 MiLiTAET Sketching die of one end of the block saw out a slit ^ wide and extend-ing an inch and a half into the block. By means of wire nailsdriven as shown in Fig, 21c, attach the three legs to the Pig. so Flat Sketch 65 one leg in the slit and the remaining two legs at the other endof the block. Then drive a wire nail into the center of the bot-tom of the block; the nail being of sufficient length so thatit will protrude % out of the block. (See Fig. 21c.)When all of this has been completed, you will have a tripodsomething like Fig. 21d. Now bore a hole ^ deepinto the center of the bottom of your drawing board, thediameter of this hole being just sufficient to accommodate thewire nail protruding from the top of the tripod. Now attachthe drawing board to the tripod by means of the nail and holejust described, and you will have a drawing board and tripodcomplete, by means of which the drawing board may be quicklyoriented and leveled; also the board may be easily detachedfrom the tripod when it becomes necessary to read anglesof slope froni the attachment on the board. As stated hereto-fore, the tripod is of assistance to the beginner, although notreally necessary, but is usually
Size: 1360px × 1838px
Photo credit: © The Reading Room / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1910, booksubjectmilitarytopography
