Abstract: Disclosed are apparatus for a block and tackle window balance to be incorporated in single and double hung window assemblies. In one embodiment the block and tackle window balance includes a roller secured within a bottom guide to increase range of travel of a window sash.

Abstract: An electrochemically disbondable composition is provided having a matrix functionality and an electrolyte functionality. The matrix functionality provides an adhesive bond to a substrate, and the electrolyte functionality provides sufficient ionic conductivity to the composition to support a faradaic reaction at an interface with an electrically conductive surface in contact with the composition, whereby the adhesive bond is weakened at the interface. The composition may be a phase-separated composition having first regions of substantially matrix functionality and second regions of substantially electrolyte functionality. Adhesive and coating compositions and methods of disbonding also are described.

Abstract: The invention relates to an arrangement of sheet-holding systems at storage drums in turning devices of sheet-fed printing machines. It is an object of the invention to provide an arrangement of sheet-holding systems at storage drums, which ensures a stiff construction of the storage drum and a simple adjustment of the sheet-holding systems relative to one another.