AN ADJUSTABLE SUPPORT AND STAND FOR BUNSEN BURNERS I. A. BALINKIN University of Cincinnati, Cincinnati, Ohio
A LIMITED space on the laboratory table called for a simple device that could be directly attached to a Bunsen burner to support a small crucible a t variable distances from the flame. Such an adjustable ring support is shown in Figure 1 ( a ) . It consists of a split pieceof brass, A, a supporting-rod, B, and a ring, C. The change in height can be effected by sliding the piece, A, along the length of the Bunsen burner's tube, or by moving the supporting-rod, B, up or down. This double adjustment allows the ring, C, to be brought close to or as high as sixinches from the mouth of the burner. The ring is four inches in diameter and can accommodate a variety of vessels or objects to be heated. The same device has also been conveniently employed in the student laboratory as an adjustable stand for a Bnnsen burner as shown in Figure 1 (b). Although the total rise is only four inches, it is sufficient to bring the flame of the burner to the proper level of a student spectroscope for a study of flame spectra.
