sentences:  The volunteer-run museum contains two Victorian beam engines, which are kept in working order by members of the Ryhope Engines Trust.The site is owned by Northumbrian Water, successors to the Sunderland & South Shields Water Company which built the complex in the 1860s.The engines are a near identical pair of double-acting compound rotative beam engines by the local North East firm R & W Hawthorn of Newcastle - 'possibly the finest pair of compound beam engines in Great Britain'.