"The Heisler Electric Light company, which is now mainly devoting its energies to long distance incandescent lighting, is simply overwhelmed with business. An extension of the factory facilities of the concern is contemplated.Another write-up on the Heisler system appeared about a year and a half later2. In that article the following information was conveyed:"Mr. Chas. Heisler is the pioneer electrical manufacturer of St. Louis, and is the president and proprietor of the following companies: The Heisler Electric Light company; the St. Louis Illuminating company; the American Carbon company, and the Heisler Electric Bell and Burglar Alarm company."
"...The United Gas Improvement company has for some time past been engaged in thoroughly inspecting and testing different electric light systems with a view to finding one specially adapted to municipal long distance incandescent lighting, which could be economically operated by using the waste products of the gas house and which could produce a light sufficiently brilliant to answer all purposes of street illumination. That it has found what it sought is evident from the fact that a few weeks ago it purchased outright the American patents of Chas Heisler and all the rights, privileges, property and leaseholds of the Heisler Electric Light company of St. Louis, retaining Mr. Heisler in the position of consulting electrician of the company. Mr. Heisler is now in Europe superintending a large exhibit of the Heisler system at the Paris exposition. He also proposes to introduce the Heisler system throughout Europe under the unusually broad patents which were granted to him some six months ago...Later that year (1889) an article appeared on the Heisler Dynamo and Regulator3 in which the dynamo, regulator and lamps were pictured. Heisler lamps are shown below. From left to right the candle power values are : 30, 50 and 100."...Under this efficient management and with the financial backing of the United Gas Improvement company, the Heisler Electric Light company will now take its place among the leading companies of the country. Its system will be thoroughly developed in all its details. Increased facilitites will be added for manufacturing and nothing will be left undone to secure the introduction of the Heisler system in all parts of the country for municipal lighting. The United Gas Improvement company has in view the enlargement of the present plant sufficient to meet all necessities, and it is rumored that at an early date a large factory will be erected in the east for the manufacture of the Heisler apparatus in that section of the country...
"...The Heisler company is contemplating a fine exhibit at the forthcoming St. Louis exposition and will install there two 300 light machines with the latest improved appliances; 500 lights are rented to the Exposition company, and the remaining 100 will be used in the Heisler exhibits for the purpose of illustrating the different adaptations of the system..."
In December of 1890 an article appeared4 in which it was announced that the manufacturing equipment was being moved from St. Louis to a new site in Gloucester, New Jersey.
References
1) Correspondence, St. Louis Notes, Western Electrician, Vol 2, No 1, Jan 7, 1888, pg 10.
2) "Heisler Electric Light Company," Western Electrician, Vol 5, Aug 3, 1889, pg 61.
3) "Heisler Dynamo and Regulator", Western Electrician, Vol 5, No 17, Oct 26, 1889, pg 215.
4) "The Heisler Electric Light Co.," The Electrical Engineer, Vol 10, Dec 10, 1890, pg 660.