. Directions for laboratory work in physiology. Physiology. EXPERIMENT p Extensibility and Elasticity of a Steel Spring. Apparatus.—The structure of the drum kymograph, the method of fastening the paper on the drum, of blacken- ing the paper, and of fixing the record, will be explained by the instructor. Examine your kymograph with care and be sure that you understand how the clockwork is wound up; how to change the gearing so as to obtain the faster and slower speeds of the drum; how to arrange drum to be driven by the clockwork or to be rotated by hand; and how to raise and lower the dru
. Directions for laboratory work in physiology. Physiology. EXPERIMENT p Extensibility and Elasticity of a Steel Spring. Apparatus.—The structure of the drum kymograph, the method of fastening the paper on the drum, of blacken- ing the paper, and of fixing the record, will be explained by the instructor. Examine your kymograph with care and be sure that you understand how the clockwork is wound up; how to change the gearing so as to obtain the faster and slower speeds of the drum; how to arrange drum to be driven by the clockwork or to be rotated by hand; and how to raise and lower the drum. The instrument will be in order when you receive it and must be in order when you return it. Mount spring and heavier mus- cle lever on the longer iron stand. 0 i ir ^^ shown in diagram. The stand fC^IJill^ holding the recording instruments should always be placed to the right of the kymograph, so that these instruments shall point in the direction that the drum re- volves. The clockwork turns the drum clockwise, and when it is turned by hand it should be rotated always in this direc- tion. If the drum be rotated backward, the recording points are liable to be injured. All records should read from left to right. Decide at what part of the drum the record is to be made before finally clamping the recording apparatus on the stand. Fasten two pieces of thread to the writing lever at the hole second from the axis, and attach one of the threads to the spring rD Apparatus for re- cording extensibility and elas- ticity of a steel spring. A, joint of paper on drum; B, lever; C, supporting screw; D, pin hook for weight; E, steel spring; F, V, Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Lombard, Warren P. (Warren Plimpton), 1855-1939. Ann Arbor, G. Wahr
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectphysiology, bookyear1
