Kleinlein, Walter John, 1876- [from old catalog] · [Boston, Hooper printing co.] · leaf 26
tinguishing the light, which cuts offthe source of heat. As the temperature decreasesthe bar again comes into contact and creates thecircuit. This bar can be made of various compensatingmetals, one combination of which is a strip of zincabout six inches long by three eighths of an inchwide and one… … Equipment for Temperature Adjusting metals should be bent to a curved form before theyare soldered together as shown in the cut. It is generally preferable to have the bar taper toa slightly narrower width at its free end, and near this free end it is neces- sary to solder a smallstrip of platinum…
Clocks and watches
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