"Roentgen" induction coils and other X-ray apparatus (1904) (14571026739)

Identifier: roentgeninductio1904jame (find matches)

Title: "Roentgen" induction coils and other X-ray apparatus

Year: 1904 (1900s)

Authors: James G. Biddle Company

Subjects: X-rays Induction coils Radiography

Publisher: Philadelphia : James G. Biddle

Contributing Library: Francis A. Countway Library of Medicine

Digitizing Sponsor: Open Knowledge Commons and Harvard Medical School

Text Appearing Before Image:

replaced by new ones of standard size, without being returned to the factory. zAll the parts of the interrupter are standardized and can be renewed at any time as we keep a stock of parts on hand. A long life of all the parts has been madeLong Life of Parts. . . £ , ~. . . , an especial feature. The ones subjected to the greatest wear are of course the contacts. But they havebeen made unusually large and of the very best iridio-platinum ob-tainable. Aside from the contacts, the only parts which may needrenewing are the springs, which once in a great while crystallizeand break under the strain of constant bending. The contacts should last for a year with constant use, while thesprings may never need renewing. In short we recommend the Roentgen Self-Starting Mechani-cal Interrupter as the most efficient, most reliable, and most satis-factory of the various mechanical interrupters which are offeredto-day. 20 James G. Biddle, 1114 Chestnut Street, Philadelphia. Interrupter and Condenser

Text Appearing After Image:

Figure 10. Roentgen Self-Starting Mechanical Inter-rupter and Adjustable Condenser,witn Switches. A COMPLETE interrupter with adjustable condenser and switchesas shown can readily be adapted to coils whose operations isrendered unsatisfaclory because of the inefficiency of the interrupter.The output of an induction coil, operated by the ordinary mechani-cal interrupter, can be materially increased if the Roentgen Mechani-cal Interrupter be used in its place. The interrupter is of the well-known self-Interrupter and ... . , , starting type and has a current carryingCondenser. ., , ., , u capacity of up to 10 amperes on the 16 volts, 20 volts or 110 volts direct current. The condenser is adjustableand of the best mica insulation, assembled by a process that ex-cludes all air from the condenser and insures maximum efficiency. The indicating snap switch at the extremeThe Switches. . ., . ,, • _ . ._ .. , ... right is the Interrupter Switch, which, on being closed, starts the interrupter

roentgen induction coils and other x ray apparatus 1904 book illustrations medicine x ray roentgen rays medical devices history of technology x ray apparatus images from internet archive philadelphia pennsylvania

1904

Francis A. Countway Library of Medicine

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public domain