Joseph Story,
Thornton v. Bank of Washington…
“ Each note is considered as a distinct substantive transaction. If no more than the legal interest is taken upon the time the new note has to run, the actual application of the proceeds of the new note to the payment of the former note, before it becomes due, does not of itself make the transaction usurious. Something more must occur. There must be a contract between the bank and the party at the time of such discount, that the party shall not have the use or benefit of the proceeds until the former note becomes due, or that the bank shall have the use and benefit of them in the mean time. ”
