Abstract: A fixing device is disclosed which in its form described in detail is utilizable as a replacement wall tie anchorable between the two leaves of an existing cavity wall. In this form the device consists of a stainless steel bolt (2) having a stop end (3) with mounted thereon in order from the stop end a deformable sleeve (4), a rigid sleeve (5), a deformable sleeve (6), a rigid sleeve (7), a nut (8), a rigid sleeve (9), a deformable sleeve (10), a rigid sleeve (11) and a nut (12). In use the device is inserted in co-axial bores (15A, 15B) drilled from outside a building through the outer leaf (14) and into the inner leaf (13) of a cavity wall. The nut (8) is tightened to expand the sleeve (4) in the bore in the inner leaf and the nut (12) is tightened to expand the sleeve (10) in the bore in the outer leaf (14) and in this way a wall tie is placed with minimum damage to the wall. In particular the internal surface of the inner leaf is not pierced, and re-building of an unstable wall is avoided.

Abstract: A molded plastic mounting base is provided for stop tablets on an organ or the like. Pivot shoulders are integrally molded on the mounting plate. Each stop tablet has complementary pivot recesses integrally molded therein. A single blade-type spring snapped on to depending structure on each stop tablet simultaneously operates as a retaining means for a respective stop tablet and as an overcenter biasing spring therefor.

Abstract: A chord button assembly for use in electronical organs is formed as a unitary assembly. A plastic hinge strip extending the length of the chord selector button area is provided and a plurality of keys or arms extend from the strip and have selector buttons formed at or near terminating ends of the arms in a staggered pattern to extend through openings formed in the chord selector plate. The arms are provided with return spring and electrical contact element receiving recesses which are strategically located to allow selection of multiple chord operation by actuation of a single chord button.