The Chanchester lamp company of Chicago Illinois is often thought of as an Aladdin competitor. However, the beginnings of Canchester predates the founding of Aladdin by a couple years.  David Canchester applied for a patent for his incandescent mantle burner on 22 June 1906 and it was issued on 3 August 1909. The company ran into financial difficulties and went out of business in 1912 leaving behind a large inventory of burners and chimneys.

Evidently the large inventory did not include a large stock of mantles.  Likely most of the complete lamps sold went to WWI brass drives when the owners could no longer find mantles.  New burners and chimneys frequently turn up, often still in their original boxes.

If you have any additional information on these lamps that you are willing to share, please .

Here is a partially disassembled Canchester burner showing the inner and outer wick tube assembly and the flame spreader adjustment assembly.

The Liverpool style flame spreader fits onto the pin that is visible in the center opening of the wick tube assembly.   The flame is adjusted by raising and lowering the flame spreader. This regulated the supply of air reaching the flame.

This picture shows a side view of an assembled Canchester burner.

CANCHESTER is stamped into the side of the burner.

The burner measures 3-1/2" long and about 2-1/2" wide at the gallery.  The threads fit a standard #2 collar.

Here are pictures of a new old stock Canchester chimney.  The bottom is fitted with protective material.  

The chimney logo near the top is a circle with "CANCHESTER"  as shown in the picture to the right. The chimney is 13.5 inches tall.

The Canchester mantle seems to be unique to the lamp though the general shape is that of the standard gas lamp mantle.  As you can see from the picture on the left the weave of the mantle bag appears to be looser than is common or the thread size thinner.  This is presumably to provide  greater air velocity through the burner . 

There appears not to have been many or any mantles among the lamp parts left when the company went out of business. A lack of mantles may be the primary reason these lamps seemed to quickly disappear from homes and why the large stock of new burners and chimneys remained unused.

New Canchester wick mounted into a burner base.  An interesting feature is that the wick is not adjustable in the assembled burner. Instead the amount of air flow is regulated by adjusting the flame spreader.