Interlocutory bills are bills brought during the progress of the suit on the original suit, and whose object is to add to an original bill by correcting defects or supplying matters necessary to the suit; or to continue the suit if abated; and obtain the benefit of proceedings already had; or for both purposes.

Interlocutory bills include

Supplemental bills and original bills in the nature of supplemental bills;

Bills of revivor and original bills in the nature of bills of revivor, and

Bills of revivor and supplement.