Patent Model - Improvement in Steam-Traps

Maker and role
John Royle, Patentee
Production date
Mar 13 1877
See full details

Object detail

Painted tin, copper, brass
4 x 3 1/4 x 6 3/8" (10.2 x 8.3 x 16.2cm)
Royle's steam-trap consists in the "employment of an open-bottomed condensing-chamber,... fitted to rise and fall in a suitable reservoir of water... Steam is admitted by suitable means into and beneath such condensing-chamber, and the buoyancy thus obtained is employed to actuate the necessary cock or valve in one direction, while the condensation constantly taking place within such condensing-chamber is taken advantage of to actuate such cock or valve in the contrary direction." (Patent Number 188,416)
Object number
Currently on display?


My shortlist

Object type

Explore other objects by color

Public comments

Be the first to comment on this object record.

Google reCaptchaThis site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.