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- Description:
- Black and white photographic print depicting the inside of the Dressler Kiln at the Champion Spark Plug Co. Caption on verso reads: Taken by the Carborundum Company 9-20-1921 - Showing interior of Dressler Kiln (The kiln had been in service for seven months - 2-4-1921 to 9-7-1921). This is a detail of the #A mix better showing the condition of the joints and the chambers. These chambers are the twelfth, eleventh and tenth from the damper box, while the chambers shown in the previous photograph are the #B mix, taken further down the kiln towards the exhaust gas end. Compare these photographs with the one taken last November and not the cleanliness of these chambers as compared with those of the previous photograph.
- Date Issued:
- 1921-01-01T00:00:00Z
- Data Provider:
- Detroit Historical Society
- Collection:
- Champion Spark Plug Co.
- Description:
- Black and white photographic print depicting the inside of the Dressler Kiln at the Champion Spark Plug Co. Caption on verso reads: Taken by the Carborundum Company 9-20-1921 - Showing interior of Dressler Kiln (The kiln had been in service for seven months - 2-4-1921 to 9-7-1921). Looking down the carbofrax B muffles in the same direction as the gases pass. This shows the amount of silica on the surface: also the condition of the joints. Unfortunately the picture is out of focus and does not show the joints as well as it should. However, they are very much better than they were in the case of the previous failure. The mortar used in these joints is a mixture of 80% carborundum 14 and finer, 20% clay, and in no case has attached the carborundum chambers. Previously a mixture of clay and alumina was used and altho the mortar was not attached the carborundum had been eaten away on both sides permitting leaks. These chambers were in the kiln not only during this burning but during the previous burning as well, this is, altogether about fourteen operating months.
- Date Issued:
- 1921-01-01T00:00:00Z
- Data Provider:
- Detroit Historical Society
- Collection:
- Champion Spark Plug Co.
- Description:
- Black and white photographic print depicting the outside of the Dressler kiln operator room at the Champion Spark Plug Co. Caption on verso reads: Recording Instrument Room for the Dressler kiln. Taken for Dressler Co. March 1921.
- Date Issued:
- 1921-01-01T00:00:00Z
- Data Provider:
- Detroit Historical Society
- Collection:
- Champion Spark Plug Co.
- Description:
- Black and white photographic print mounted on fabric depicting the pre-heating end of a Jeffery Dewitt Kiln under construction at the Champion Porcelain Co. Dated Apr.-5-1919.
- Date Issued:
- 1919-01-01T00:00:00Z
- Data Provider:
- Detroit Historical Society
- Collection:
- Champion Spark Plug Co.
- Description:
- Black and white photographic print mounted on fabric depicting equipment in the Department #36 Process Laboratory at the Champion Spark Plug Co. Caption on verso reads, "General view of Process Laboratory where bodies can be put into production without interfering with factory production."
- Date Issued:
- 1922-01-01T00:00:00Z
- Data Provider:
- Detroit Historical Society
- Collection:
- Champion Spark Plug Co.
- Description:
- Black and white photographic print mounted on fabric depicting the inside of the cooling end of a Jeffery Dewitt Kiln under construction at the Champion Porcelain Co. Dated July 25-1919.
- Date Issued:
- 1919-01-01T00:00:00Z
- Data Provider:
- Detroit Historical Society
- Collection:
- Champion Spark Plug Co.
- Description:
- Black and white photographic print mounted on fabric depicting a Jeffery Dewitt Kiln under construction at the Champion Porcelain Co. Dated July 18 1919.
- Date Issued:
- 1919-01-01T00:00:00Z
- Data Provider:
- Detroit Historical Society
- Collection:
- Champion Spark Plug Co.
