Illustrated catalogue and price-list of drawing and tracing papers, sun print papers and equipments, drawing instruments and materials, surveying instruments, accessories, etc / Kolesch & Company. . rism in the usual manner. As an altitudeinstrument it is placed in a vertical position, as illustrated, the stop beingpulled up or released. The altitude arc then swings, and its divisionscome into line with the prism and metal sight line. When applied as anordinary clinometer, the readings are observed through the opening, whichcorresponds to the position of the clinometer base. A is the prism box
Illustrated catalogue and price-list of drawing and tracing papers, sun print papers and equipments, drawing instruments and materials, surveying instruments, accessories, etc / Kolesch & Company. . rism in the usual manner. As an altitudeinstrument it is placed in a vertical position, as illustrated, the stop beingpulled up or released. The altitude arc then swings, and its divisionscome into line with the prism and metal sight line. When applied as anordinary clinometer, the readings are observed through the opening, whichcorresponds to the position of the clinometer base. A is the prism box; B is the sighting line; C is the altitude arc;D is the stop for locking clinometer; E is the clinometer scale. 7950 Prismatic Surveying Compass and Clinometer, 3 inch, withfloating card compass dial, jeweled center, clinometer scalegraduated OM8O0 with scale of rise and fall of inches peryard, folding prism and metal sight, bronzed metal solid leather sling case each, $ 7952 Same as No. 7950, but compass fitted with aluminum ring and metal altitude clinometer dial each( mQQ mm: 26o KOLESCH & CO. ^K^ 1STEW YORK, Service Pattern Clinometer Made by Short & Mason, instrument is used in military operations for measuring angles ofelevation or depression. It is also of great service in the question ottransport of guns and stores, as by knowledge of the dip or rise in a hillthe officer will know whether he has sufficient horse power to draw theload and can provide for the proper amount before starting. INSTRUCTIONS FOR USE. It should be held in the left hand and in a vertical position, allowinglight to pass through the window A to illumine the arc scale whichis made of ivory. This scale is held clamped, and by pressing the knobB it is released and swings freely until it comes to rest. The pressure should be retained on the knob until the observation ismade When pressure is removed the arc is at once clamped. A slidinglock bolt is shown at C, whi
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Keywords: ., bookcentury1900, bookdecade1910, bookidillustratedc, bookyear1917
