Tractel Limited

Anthony Jin

Jack Tadus

Randy Ly

Leon Chen

Mar Mantuhac

Matthew Gryniewski

In a penstock internal maintenance system, the penstock includes an inclined portion between upper and lower ends, the upper end arranged in an edifice including a water collecting chamber and a gate bearing structure allowing a gate to close the penstock, the gate bearing structure adjacent the water collecting chamber forming a vertical pit. The system includes a set of units assembled in an assembled configuration and separated in a dismounted configuration, the units including an anchor unit, a launching unit and a penstock inspection platform unit, the units in the dismounted configuration being enter the penstock through the gate bearing structure adjacent the water collecting chamber, the units are assembled when located in the penstock, the anchor unit slidingly received and retained in the gate bearing structure, the anchor unit having two lateral edges being guided and retained in two vertical lateral grooves of the gate bearing structure.

Penstock internal maintenance system and process of assembling, anchor unit

A portable davit base for removable attachment to a rooftop davit pedestal having a mounting plate includes two opposed side plates and two metal transverse supporting members for mounting on the mounting plate and secured thereto with connector pins that extend underneath edges of the mounting plate on opposite sides of the davit pedestal. The opposed side plates have vertically spaced apertures for inserting davit mast supporting pins for pivotal mounting of a mast on the assembly. A davit arm connected to the mast is rigidly attached to the portable davit mounting assembly for use in suspending scaffolding over the side of a building.

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Scarborough, Canada

Anthony Jin