Knowing how cranes should be used, and how they should not be used, is critical to crane safety. Overload, side pull, limit switches, secondary braking devices, using the reverse direction for speed control, and daily inspections are surrounded by myth and mystery in the workplace.
The trend of using smaller operative corridors is seen in various surgical specialties. Neurosurgery has also recently embraced minimal access spine technique, and it has rapidly evolved over the past 2 decades. There has been a progression from needle access, small incisions with adaptation of the microscope, and automated percutaneous procedures to endoscopically and laparoscopically assisted procedures. More recently, new muscle-sparing technology has come into use with tubular access. This has now been adapted to the percutaneous placement of spinal instrumentation, including intervertebral spacers, rods, pedicle screws, facet screws, nucleus replacement devices, and artificial discs. New technologies involving hybrid procedures for the treatment of complex spine trauma are now on the horizon. Surgical corridors have been developed utilizing the interspinous space for X-STOP placement to treat lumbar stenosis in a minimally invasive fashion. The direct lateral retroperitoneal corridor has allowed for minimally invasive access to the anterior spine.
Earlier this year, an Arkansas trucking company became the latest to file a complaint against Navistar in federal court, arising out of the now familiar refrain that Navistar knew its 2010-2013 MaxxForce 11,13, and 15 Advanced EGR diesel engines were defectively designed and would prematurely fail, causing damage to the trucks and economic harm to the trucks' owners and lessees, as well as severely diminishing the value of the affected vehicles.
Sharing a machinery and equipment appraiser in a legal conflict is one of the more practical methods of reducing costs and discord. While the concept of shared experts is not new to legal proceedings concerning issues like mergers and collateral lending, I've been encouraged to see this refreshing trend gain momentum in family law cases as well.
Every year there are thousands of debilitating injuries and deaths on farms. Many of these are related to power take-off's (PTO's). PTO shafts are used to power various farming implements, from mowers, hay balers, augers, and many other types of farming machinery. The PTO shaft was invented in the 1930's. The PTO shaft is essentially a shaft powered by the tractor engine that rotates at high speeds, providing power for a wide array of implements. While this provides a convenient source of power to drive farm implements, serious accidents can occur due to entanglement in PTO's. PTO's must be properly equipped with guards including master shields which covers the stub shaft and universal joint. These shields prevent inadvertent contact with the rotating machinery. Contact with unshielded rotating PTO parts can instantly pull a person into the PTO, causing catastrophic damage.
I spent last week back east visiting my uncle and cousins at the Young family farm, where my uncle, who grew up there, now raises goats, grains and vegetables and boards horses on the property. My grandfather (Pappy) wasn't raised on a farm, but as a young man he built an old style dairy farm - a farm that not only made a living but fed his family as well. The dairy farm wasn't limited to milking cows; this family farm, like so many in that era, raised pigs, chickens, horses and grew corn, oats, rye; had a full vegetable garden as well as pasture land, an orchard and berry patch.
The role that water plays in our existence is well understood. Without it, most living things will rapidly wither and die. Equally catastrophic of course, are the consequences of too much water. Not only to living things, in terms of widespread flooding, but also in terms of damage to machinery and equipment from exposure to water.
The art of positioning a propeller underneath a boat hull is not a new one. Designers and naval architects have been grappling with every aspect of the propulsion-by-propeller problem for generations, and the result has been the evolution of a well known set of standard and efficient solutions
In various industries there are valve applications where the standard valves used do not function satisfactorily. When scale is formed on the moving elements of ball valves or gate valves the consequence is either blocking of the valve movement or damage to the valve seats and consequent leaking through the valves