X-ray manual - U.S. Army (1917) (14570849037)

Identifier: xraymanualusarmy00unit (find matches)

Title: X-ray manual : U.S. Army

Year: 1917 (1910s)

Authors: United States. Surgeon-General's Office American Roentgen Ray Society

Subjects: X-rays Fractures Teeth Chest Heart Radiography

Publisher: New York : Middleditch

Contributing Library: Francis A. Countway Library of Medicine

Digitizing Sponsor: Open Knowledge Commons and Harvard Medical School

Text Appearing Before Image:

BOOSTERVOL TME TER ——; /^\V r -FILAMENT TRANSFORMER —FILAMENT CONTROLFILAMENT SWITCH COLLFUNGS COMMUTATOR- SLIDINGRESISTANCE j point switch--gJ^HHHH^ L. IGNITION COIL-. SPARK PLUG,GAS ENGINE

Text Appearing After Image:

TRANSFORMER GENERATORI LECTOR fl ij-O-fIN6S IJffl BREAKERSOLENOID ?—■ — Fig. 27. U. S. Army Portable Unit set up with self-cooling and self-rectifyingCoolidge tube. 59 60 X-RAY MANUAL—U. S. ARMY Owing to the drop in line voltage upon closing theoperating switch it is necessary to secure a uniformfilament current by inserting a booster in the primarycircuits of the two transformers. This is merely a smalltransformer which by carrying the main transformer pri-mary current adds enough voltage to the filament trans-former primary to compensate for the drop of voltage inthe line. The transformers and electrical apparatus may be con-veniently assembled in a case which also serves to pro-tect them in transportation. The table knocks down.and the whole outfit may be very quickly set up or takendown. The tube is carried beneath the table as in theusual trochoscope. Operation. After setting up the outfit check over the connectionsby comparison with the diagram furnished with themachine.

x ray manual u s army 1917 book illustrations medicine x ray roentgen rays medical devices history of technology images from internet archive

1917

Francis A. Countway Library of Medicine

http://commons.wikimedia.org/

public domain