Abstract: Stepladder support apparatus for use with a stepladder to allow the stepladder to be positioned on an uneven surface and maintain the rung side of the stepladder at an elevated position includes a support member having a top end and a bottom end. Rung engagement members are attached to the support member for engaging and supporting one or more rungs of the stepladder. The bottom end of the support member extends below the lower end of the rung side of the stepladder when the rung engagement members engage and support a rung or rungs of the stepladder.

Abstract: Device for absorbing lateral forces generated as a result of a linearly reciprocating pin causing rotation of a scotch yoke, the device including a guide block guided along a guide rod, the guide block carrying a yoke engaging pin as well as having opposed connector-receiving cavities; connectors linking each cavity with opposed rod members, each connector having opposed curved surfaces and one or more flats intermediate adjacent such surfaces, the guide block positioning a plurality of annular members each having an arcuate surface slidably receiving one such curved surface, said block also including a locking device for engagement with each connector flat.

Abstract: A device used in an actuator for locking in place a spring module while under load, the device including a spring return cylinder carrying a spring under compression when under load, a spring guide, a pull rod linked to a piston in a power cylinder, and a connection linking the pull rod and the spring guide, the connection being disengageable when said spring is not under compression, but not so when under compression.