Today’s Patent-IMPROVEMENT IN LAMPS
Jonathan J. Hoyt of Chelmsford received his U.S. Patent for the ‘Improvement in Lamps’ in the year 1872. This invention was a development in the patented object and there were certain new and useful improvements made by him to the object.
The invention is primarily based on the Argand Principle which is an air-passage leading to or communicating with the interior or center of the flame. It also consists of a peculiarly constructed coupling used for securing the parts of a lamp together, which may include the body or the oil chamber to the base or the stand.
In this invention, the body of the lamp is made of glass instead of any other material or sheet metal. The lower end of the base or stand is attached to the body of the lamp in order to sustain the lamp when it’s in use. Hoyt also claimed that the strongest results are obtained from this invention with respect to the air passage according to the principle.