Visual Signaling: Signal Corps, United States Army, 1910U.S. Government Printing Office, 1910 - 133 sider |
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Visual Signaling: Signal Corps, United States Army, 1910 United States. Army. Signal Corps Uten tilgangsbegrensning - 1910 |
Visual Signaling: Signal Corps, United States Army, 1910 United States. Army. Signal Corps Uten tilgangsbegrensning - 1910 |
Vanlige uttrykk og setninger
acetylene angle apparatus army and navy attached background brass burner calcium carbide cartridge Chief Signal Officer chromatic aberration cipher code cipher disk cipher letter color Column Column Column convex lens decipher diameter distance distant station double convex enciphered eyepiece feet field cipher field glass field messages field of view flag focus follows frame Galilean Galilean telescope GLASSES AND TELESCOPES heliograph instrument International Code key number key word lamp leather lens lenses light lower disk magnified means method mirror bar Morse navy alphabet night signaling object glass observed operator optical center paper disk personal signal Porro prism position preconcerted rays refracted searchlight semaphore sender sending sequence rocket shadow spot shown in figure Signal Corps signal station spherical aberration station mirror stopcock strap sun mirror tangent screws tenths inches tion transmit tripod tube unaided eye United States Army upper disk visual signaling
Populære avsnitt
Side 47 - The first motion (the dot) is to the right of the sender, and will embrace an arc of 90", starting with the vertical and returning to it, and will be made in a plane at right angles to the line connecting the two stations. The second motion (the dash) is a similar motion to the left of the sender. The third motion (front) is downward directly in front of the sender and instantly returned upward to the first position.
Side 66 - He will enter in the proper places, at the head of the blank, the number of the message, the call letter of his station, with his personal signal, the check (number of words or groups of cipher contained in message, counting address and signature), and after "OK...
Side 11 - The wand is a stick of light wood about 18 inches long and one-half inch in diameter. It is held loosely between the thumb and forefinger and waved rapidly to the right or left to indicate the elements of the alphabet. It is used for practice purposes and the signals made by it are only intended to be read at very short distances.
Side 20 - Extra care bestowed upon preliminary adjustment is repaid by increased brilliancy of flash. With the alignment absolutely assured and the "shadow spot" at the center of the disk, the axis of the cone of reflected rays is coincident with the line of sight and the distant station receives the greatest intensity of light. Remember the distant observer is unquestionably the better judge as to the character of the flash received; and if therefore, adjustment is called for when the "shadow spot...
Side 82 - Adjustment. — If the receiver sees that the sender's mirror needs adjusting, he will turn on a steady flash 'until answered by a steady flash. When adjustment is satisfactory the receiver will acknowledge, and the sender will resume his message. End of address. — Signal the period ( ). Signature follows. — Signal " Sig. " To acknowledge receipt of a message. — Signal "OK," followed by personal signal or initial of receiver.
Side 19 - Now step behind the sun mirror and adjust it by means of the tangent screws so that the "shadow spot " falls upon the center of the paper disk on the station mirror. The flash will then be visible at the distant station. The screen and its tripod are established as described in the single mirror assembling. Alternate method with two mirrors. — Clamp the mirror bar diagonally across the line of vision to the distant station, with the sun mirror and the station mirror approximately facing the sun...
Side 23 - ... instrument upon the presence of sunlight. The normal working range of the heliograph is about 30 miles, though instances of its having attained ranges many times greater than this are of record. The heliograph can be depended upon to transmit from five to twelve words per minute.
Side 13 - ... 36 inches long. The 4-foot kit is the standard field flag kit, and the range at which signals can be exchanged with it depends on a variety of factors, such as the condition of the weather, the location of stations, the proficiency of signalmen, etc. The speed for continuous signaling is seldom greater than five to six words per minute.
Side 128 - The Chief Signal Officer of the Army reserves the right to inspect any or all processes of manufacture, and unsatisfactory material -will be marked for rejection by the inspector before, during, or after assembly, as occasion may arise. Each glass will be tested for power, field, definition, and light. Any glass which is not the equal of the sample and model in all respects will be rejected. The properties above enumerated will be tested as follows : (a) Power: In testing for power the glass will...
Side 64 - field message " is applied to all messages sent over field lines of information. All field messages for transmission over field lines of information by electrical or visual means should be plainly written by the sender on the blank forms in the United States Army Field Message Book.