TY  - JOUR
T1  - A new device for dropping ether and chloroform
AU  - ROHRIG JG
Y1  - 1909/11/27
N1  - 10.1001/jama.1909.92550220029002
JO  - Journal of the American Medical Association
SP  - 1817
EP  - 1818
VL  - LIII
IS  - 22
N2  - 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
SN  - 0002-9955
M3  - doi: 10.1001/jama.1909.92550220029002
UR  - http://dx.doi.org/10.1001/jama.1909.92550220029002
ER  -