This resulted in a fire on another gas holder approximately an hour later. It initially consisted of a retort house and a gas holder. The course was Capel airship hangar, Folkestone pier and Hythe gas holder. The Klonne dry seal gas holder was circular&colon; it used a grease seal. The Leipzig Panometer occupies a disused telescopic gas holder in Connewitz. The company had a technological edge, with their manager Tait inventing the telescopic gas holder. There are two basic types of gas holder&colon; the water-sealed and the rigid waterless. A gas holder provided storage for the purified, metered gas. The telescopic gas holder was first invented as early as 1824. There was also a gas holder and tank works in the 1920s. Nothing remains but a single gas holder, built in 1886. An adjacent gas holder received gaseous boil-off from the tanks. The facility was the largest gas holder in the U.S. west of Chicago. William Gadd of Gadd & Mason, from Manchester, invented the spirally-guided gas holder in 1890.