Historical information
The regulator was sectioned by I. Philpott in 1962.
Physical description
The regulator, designed to protect anaesthetic machines against sudden changes in pressure, consists of two main, rounded bodies, joined by a short connection. The lower section consists of a valve and a nut on the end that can be adjusted to provide a secondary pressure range. The upper section shows the gauge, which has had part of its face removed to show the inner workings. The valve on the reverse side has also been sectioned.