Collection of pages from K&E catalogs for the 4128
Nordell Sewer Slide Rule
The catalog page from 1911
The Nordel Sewer Slide Rule is 20" long duplex slide rule with celluloid on a wood frame. The scales are engine divided and designed for sewer flow design calculations. The first issue of the rule had a clam shell cursor.
Model numbers in the group:
- 4128 ----- 20" Nordell Sewer Slide Rule
The 4128 was first shown in the 1911 slide rule only catalog. The last mention of the 4128 is in the 1922 catalog. The following is a brief history of the Nordell Sewer Slide Rule as is told in the K&E catalogs that are available at this time. Exact timing is not possible because of the time between catalogs.
- 1911 -- The Nordell Sewer Slide Rule was first introduced.
- 1915 -- The clamshell cursor was replaced with the all glass cursor.
- 1922 -- The 4128 was last shown in the 1922 catalog.
Links to catalog pages for the 4128 family of slide rules: