Abstract: A rail anchor and attachment assembly for securing the end of a sinuous spring band to a curved frame rail in a furniture frame. The anchor is a pin fabricated from heavy gauge wire. It comprises a vertical anchor leg seated against the back surface of a frame rail and depending from a horizontal attachment leg. An attachment hook on the free end of the attachment leg receives a spring band, a helical connector spring or some other form of band connector, to form an attachment assembly joining the band to the rail.

Abstract: A spring-frame assembly is provided for seats or the like including a plurality of wire springs in horizontally spaced relation between a pair of horizontal tubular frame members in spaced parallel relation. A pair of clips are provided for each spring, receiving opposite end portions thereof and including hook sections extending over the frame members downwardly around the outside thereof and thence inwardly and further including retaining sections engaging over portions of the spring spaced inwardly from the end portions thereof. The springs are preferably sinuous springs pre-formed to assume an upwardly bowed configuration and to apply torques and forces on the clips insuring secure engagement of the clips with the frame members. The clips have a ribbed construction for increased strength with flanges to provide extended areas of contact with the frame members.

Abstract: A rail attachment assembly for attaching an end of a sinuous spring band to a steel rail. A vertical or a horizontal flange of the rail is apertured or cut-out to facilitate passage of an anchor link or band element. The aperture or cut-out is elongated along one axis to permit pivotal movement of the link or band through a substantial arc without interference.

Abstract: An attachment clip and assembly for attaching the end of a sinuous spring band to a wood furniture frame rail without the need for any nails or staples whatever and without any hammering or driving to engage the anchoring tangs. The clip has an anchor leg and an attachment leg. Tiny, sharp, upwardly inclined anchor saw-teeth plow in against the outer surface of the rail and automatically embed in the surface when pressure is applied by the spring band secured to a hook on the free end of the attachment leg. Anti-backoff means in the form of anti-backoff feet bearing against the inner surface of the rail and/or outwardly inclined anti-backoff tangs under the attachment leg serve to prevent the clip from becoming unseated when spring tension is released and outward shock loading applied to the clip.