SPRINGS FOR SASH FRAME TENSIONING ARRANGEMENTS

A coiled ribbon spring comprising a coiled ribbon spring body and, at a free end thereof, a tongue portion having first engagement means for operative connection to an object to be tensioned, said tongue having at a location between said first engagement means and the coiled ribbon spring body, second engagement means co-operable with first engagement means provided on another coiled ribbon spring. Also an assembly of such springs disposed one above the other working in concert e.g. in pairs.

SPRING MOUNTING FOR SASH FRAME TENSIONING ARRANGEMENTS

SPRING MOUNTING FOR SASH FRAME TENSIONING ARRANGEMENTS A mounting element and assembly for a sashframe tensioner used in a sash window frame to support the window in any desired open position, the assembly comprising a channel section member and a sash frame support element slidable in said channel section member. A coiled ribbon spring having a free outer end thereof engaged with said sash frame support member, and a mounting element, the mounting being disposed between the sash frame support member and a coiled body portion of said coiled ribbon spring with a free end of said coiled ribbon spring disposed alongside said mounting, said mounting being secured to said channel section member, directly or indirectly, and in use impinging upon an outer surface of said coiled body portion to retain said coiled body portion in position during uncoiling of said coiled ribbon spring as said sash support member is moved away from said coiled body portion.

SPRINGS FOR SASH FRAME TENSIONING ARRANGEMENTS

Modular spring mounting for a sash window counterbalance arrangement

A modular spring support mounting for a sash window spring counterbalance arrangement includes at least a first spring support mounting element and a second spring support mounting element each for supporting a respective coil spring. The first spring support mounting element includes a pair of wedged shaped cross section projections. The second spring support mounting element includes an interengagement fitting which engages the pair of wedged shaped cross section projections to in use securely interconnect the first and second spring support mounting elements together. Also a method of installing such a modular spring mounting includes the step of laterally slidingly engaging the spring mounting elements to securely interlock the elements together.