(57) In order to provide an extension ring which by simple means is easy to attach safely
to a drain while it simultaneously permits precise setting thereof relative to the
underlayer for the drain, and wherein said extension ring (2) comprises a first member
(6) and a second member (7) cooperating therewith and said first member includes means
(8) for mounting the extension ring on an inlet member of the drain, the first member
(6) of the extension ring (2) also includes first adjusting means (9) which cooperate
with second adjusting means (10) on the second member (7) of the extension ring for
stepless adjustment of the second member in vertical direction relative to the first
member, such that said second member, after mounting of the extension ring on the
drain, can be set relative to an existing or future level of the upper side of the
underlayer in which the drain is located
|
|
