RT Journal
A1 ROHRIG JG
T1 A new device for dropping ether and chloroform
JF Journal of the American Medical Association
JO Journal of the American Medical Association
YR 1909
FD November 27
VO LIII
IS 22
SP 1817
OP 1818
DO 10.1001/jama.1909.92550220029002
UL http://dx.doi.org/10.1001/jama.1909.92550220029002
AB I believe that the device herein described and illustrated meets the need for a small, simple, conveniently portable instrument for dropping ether and chloroform (the former especially) continuously on the inhaler mask, the dose being perfectly and easily regulated, and the rate of drop changed any instant without removing the dropper.This device is composed of a can (Figs. 1 and 2) with regulating mechanism for outlet, tubes for air inlets, and a screw cap for filling. The can is made in half-pound (250 gm.) and quarter-pound (125 gm.) sizes, which have proved the most convenient ones. At the side of this can, near the top, is an opening for outlet (1 c, Fig. 2). Into this opening extends a cone shaped valve (2, Fig. 2), which is moved into and out of the opening by the finger by means of a lever (5) so arranged that it is convenient