A more thorough explanation:

A claim in equity was a legal process created in England in 1850 to simplify the procedure for resolving simple cases. It was a summary proceeding that eliminated the need for lengthy pleading procedures.

For example, if a person had a dispute with their neighbor over a property line, they could file a claim in equity to quickly resolve the issue without going through a lengthy trial.

The claim in equity was abolished in 1860, but its legacy can still be seen in modern legal systems, where simplified procedures are often used for resolving minor disputes.