The Freeman Incandescent Lamp
In 1888 Walter K. Freeman, along with others, organized the National Electric Manufacturing Company in Eau Claire, Wisconsin. A transformer system was designed and made for long distance lighting. For many years Freeman had been associated with the United States Electric Lighting Company of New York. Their lamp, shown here1, apparently was designed for high efficiency. The 16-candle power lamps had a guarateed life of 700 hours. The article said:
"The cut shows the lamp suspended from an individual fuse box, constructed with a detachable cover containg the fuse. By a slight turn to the left the cover, with fuse, cord and lamp, may be removed, enabling the operator to replace a burnt fuse while the plant is in operation."
Reference
1) "The Freeman Transformer System", Western Electrician, Vol 5, Oct 5, 1889, pg 179.