Electrical news and engineering . of locking switches is oftenunderestimated from a safety standpoint but the value ofusing these switches for controlling lights in dark passage-ways, hallways, dark or dangerous stairs, vaults, lavatories,etc., can be readily understood. The imperative use ofthe key prevents unauthorized or uninformed persons aswell as mischievous children from turning off lights whichfor safety sake should remain burning or conversely turn-ing on lights which are required to be out except for cer-tain occasions. Electric Glue Pot With Rheostat Control.\ glue pot with a rheost
Electrical news and engineering . of locking switches is oftenunderestimated from a safety standpoint but the value ofusing these switches for controlling lights in dark passage-ways, hallways, dark or dangerous stairs, vaults, lavatories,etc., can be readily understood. The imperative use ofthe key prevents unauthorized or uninformed persons aswell as mischievous children from turning off lights whichfor safety sake should remain burning or conversely turn-ing on lights which are required to be out except for cer-tain occasions. Electric Glue Pot With Rheostat Control.\ glue pot with a rheostat control which permits an al-most unlimited variation in temperature has been developedby the Westinghouse Electric & Manufacturing temperature of this new pot can be changed to meetdifferent conditions, such as room temi)erature. climaticconditions, different grades of glue, or different kinds ofwork. The possibility of an unstable temperature, a fre-quent condition when gas is used for heating, has been elimi-. nated, a better grade of work is possible, and the removal ora cause of time waste are some of the advantages from theuse of this product. The addition of the rheostat does notdeprive the user of any of the advantages of the electricglue pot. It still remains portable since the rheostat can belaid on a bench or shelf, the cord from the rheostat to theglue pot being long enough to permit ample movement forordinary bench work. Flexible Heating PadThe flexible heating pad illustrated herewith is manu-factured by the Ingersoll Electric Products Co., 109 .\ve., Chicago. A description was given in our Tune
Size: 1465px × 1705px
Photo credit: © The Reading Room / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bo, bookcentury1800, bookdecade1890, bookidelectricalnewsen31donm
