Centrifugal casting remained a casting method for large objects

Centrifugal casting remained a casting method for large  objects  until 1907 when Dr. Taggart, a dentist, introduced it  to  other dentists who experi‐mented with the method  hoping  to perfect cast inlays for teeth that would replace  malleting flake gold into prepared cavities. A Dr. Campbell  in  Mis‐souri used a Hoosier cowbell as a casting flask. A  wire  loop such‐as an extra long bucket bail was added to  the  bell, the clapper was removed, and the model and its  sprues were embedded in the investment plaster. 

It is important to remember, however, that materials such  as  iron or copper that are immiscible in certain ranges are  apt  to segre‐gate badly, such as lead in certain bronzes.  Tubing  with alloy modifications on the inside diameter  which  are designed to meet specific corrosion‐resist‐ant  characteristics  have been successfully produced using the  centrifugal  casting technique.