Cory v London Corp [1951]

Cory
contracted with London Corp that it would take away refuse by its barges.
Certain
provisions in contract as to coverings etc to be used by barges.
London
Corp then introduced new more stringent byelaws as to coverings.
This
made original contract more burdensome for Cory.
Cory
claimed that term necessarily implied into contract that London Corp would not
alter its byelaws to Cory’s disadvantage, and that for breach of this term they
were entitled to rescind.
Court
of Appeal rejected this argument.
As
London Corp were under statutory duty to make byelaws for disposal of refuge,
term for which Cory contended, whether express or implied, was ultra vires
London Corp.
Hence
could be no breach of it.