Stelco Inc.

Gantrex Limited

David Greenhow

A rail clamping device is provided for aligning and clamping the flange of a rail to a support surface. A slotted clip is fitted over an anchor bolt or other suitable connector, a plate cam washer having an eccentric hole is placed upon the clip, and a nut threaded upon the bolt to secure the clip and washer to the rail flange. The clip has a slotted base portion which slidably engages the support surface in a loose condition and bears upon the support surface in a clamped condition. An abutment portion extends from the base perpendicular to the support surface to engage the outer face of the rail flange. A cantilever portion extends forwardly from the abutment portion and has a bottom surface to which a synthetic rubber strip is bonded to engage the upper surface of the flange to clamp the flange to the supporting surface. The cam washer slidably engages the top surface of the base portion in a loose condition. The cam washer has an outer flank for engaging a rearward face of the abutment portion. Preferably, the cam washer has a spiral cam profile such that the angular rotation of the washer upon the bolt results in substantially proportional lateral movement of the clip and abutting rail flange. The rail flange may be aligned by rotation of the cam washers of devices on opposing sides of the rail when in a loose condition and then clamped securely in place by rotation of the nut.

Device for aligning and clamping a rail

A lifting device includes lower arm and upper arms and an intermediate portion bridging between the arms. A suspension link is pivoted at its bottom to the upper arm, and has a hook latch at its upper end for engagement with a crane hook. A telescopically guided spring exerts a separative force between a location on the link and a further location on the upper arm, which force tends to pivot the link toward the closed end of the hook. The latch has a strike panel which can be contacted by the crane hook in order to bring the latch into engagement position. The intermediate portion of the lifting hook is provided with a horizontally slidable shock absorber casing.

Growing community of inventors

Hamilton, Canada

David Greenhow