Workperson safety restraint system

A safety restraint system for a workman on a structure at an elevated location, comprising:

• a plurality of cable supports spaced along said structure, each cable support comprising a support arm and a cable anchorage tube on said arm, said support arm being narrower than the tube transversely of the tube axis,
• a safety cable extending between and through said tubes, each tube being affixed to the cable to anchor the cable to the cable supports, said cable having a thickness greater than the transverse thickness of each support arm,
• a flexible lanyard having a first end attachable to a workman's body and having a free second end,
• connector means attached to the free end of the lanyard, said connector means comprising a ring element encircling said cable, and a tie element pivotably connected to said ring element, said ring element having a radial slot of a width greater than the transverse thickness of each support arm and smaller than the thickness of the cable, whereby the ring element is slidable transversely along the cable and across the cable supports, but is not removable from the cable via the slot, manually retractable stop means on an endmost one of the cable supports for normally preventing removal of the ring element from the safety restraint system,
• said tie element being pivotably attached to the ring element for swinging motion about an axis parallel to and spaced from the cable axis, said tie element being connected to said lanyard so that upon exertion of a pulling force on the lanyard, the swing axis of the tie element is disposed on a line extending from the cable axis coincident with the lanyard line of action.

A safety restraint system for a workman on an elevated ledge, comprising:

• a plurality of cable supports spaced along the length of the Ledge, each cable support comprising an upstanding support arm, and a cable anchorage tube on said arm, each support arm being narrower than the tube transversely of the tube axis,
• safety cable extending between and through the tubes, each tube being rigidly affixed to the cable, whereby the cable is anchored to each of the cable supports, said cable having a diameter greater than the transverse thickness of each support arm,
• a flexible lanyard having a first end attachable to a workman's body and a free second end,
• connector means attached to the free end of said lanyard and comprising a ring element encircling said cable, said ring element having a slot therein, said slot having a width greater than the transverse thickness of each support arm and less than the diameter of the cable, whereby the ring element can slide transversely along the cable and through the cable supports, but cannot be removed from the cable via the slot, said connector means being removable from the restraint system by sliding the ring element along the cable and over an endmost one of the cable supports, and
• manually retractable stop means on said endmost cable support for normally preventing removal of the ring element from the system.

A safety restraint system for a workman on a structure at an elevated location, comprising:

• a plurality of cable supports spaced along said structure, each cable support comprising a support arm and a cable anchorage tube on said arm, said support arm being narrower than the tube transversely of the tube axis,
• a safety cable extending between and through said tubes, each tube being affixed to the cable to anchor the cable to the cable supports, said cable having a thickness greater than the transverse thickness of each support arm,
• a flexible lanyard having a first end attachable to a workman's body and having a free second end,
• connector means attached to the free end of the lanyard, said connector means comprising a ring element encircling said cable, and a tie element pivotably connected to said ring element, said ring element having a radial slot of a width greater than the transverse thickness of each support arm and smaller than the thickness of the cable, whereby the ring element is slidable transversely along the cable and across the cable supports, but is not removable from the cable via the slot, said slot being so oriented that upon exertion of a pulling force on the lanyard the slot is out of longitudinal registry with the associated support arm, whereby the workman is prevented from moving the connector means across any cable support while he is exerting pulling force on the lanyard, and
• said tie element being pivotably attached to the ring element for swinging motion about an axis parallel to and spaced from the cable axis, said tie element being connected to said lanyard so that upon exertion of a pulling force on the lanyard, the swing axis of the tie element is disposed on a line extending from the cable axis coincident with the lanyard line of action, said tie element comprising closure means having a blocking position extending across the ring element slot when a pulling force is exerted on the lanyard, said closure means being offset from the tie element pivot axis, whereby when there is no pulling force on the lanyard the tie element can be manually swung to a position wherein the closure means is displaced from its blocking position.