Donald Blair, CTSP, Author at Tree Care Industry Magazine

Donald Blair, CTSP

Rigging November 1, 2020 0

Correcting a Misrepresentation in the Tree Worker

In the last issue – literally, since TCIA’s monthly safety newsletter is no longer being published – of the Tree Worker (July/August 2020), the page-12 article, “Rope and Pulley … a Dynamic Duo,” definitely caught my attention. With all due respect to the great staff at TCIA responsible for so many years of solid information, […]

Equipment & Technology November 1, 2020 0

How to Wreck Your Lowering Device

Ed Hobbs created a sensation at the 1979 Northern California Tree Trimmer’s Jamboree when he gave the first public demonstration of the first commercially feasible, ratcheting lowering device in recorded arboricultural history, aptly named the Hobbs Lowering Device. I was there. I was mesmerized, as were most of those in attendance. Hobbs said the greatest […]