. A class book of (elementary) practical physiology : including histology, chemical and experimental physiology. Physiology. INTERRUPTED HELMH0LT2 Fig. 28. Connections of the primary circuit (after Waller). Helmholtz wipe for the equalisation of the make and break shocks (Fig. 28). Leave the connections as for interrupter shocks and add a wire between G and A. Raise the top contact screw E clear of the spring, and turn up the screw on pillar D until it touches the under side of the spring when the latter is held depressed against the electro- magnet. On closing the circuit the spring oscillate
. A class book of (elementary) practical physiology : including histology, chemical and experimental physiology. Physiology. INTERRUPTED HELMH0LT2 Fig. 28. Connections of the primary circuit (after Waller). Helmholtz wipe for the equalisation of the make and break shocks (Fig. 28). Leave the connections as for interrupter shocks and add a wire between G and A. Raise the top contact screw E clear of the spring, and turn up the screw on pillar D until it touches the under side of the spring when the latter is held depressed against the electro- magnet. On closing the circuit the spring oscillates. Explanation.—The P circuit is now closed at all stages of the oscillations of the spring. When the current first enters it passes round the long path through the P coil and F is magnetised. The spring is now pulled down and makes a shorting contact ;it D. The current leaves the longer path for the shorter easier one C to D, and is practically excluded from P and F. The .spring is released arid flies back restoring the long circuit, and the cycle begins 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 Birch, De Burgh. Philadelphia : P. Blakiston's Son
Size: 1199px × 2085px
Photo credit: © The Book Worm / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1800, bookdecade1890, booksubjectphysiology, bookyear1
