Weed Wackers (Download) Weed Wackers Description A weed wacker works on the principle that a line that is turned fast enough is held out from its housing (the rotating reel) very stiffly by centrifugal force. The faster it turns the stiffer the line. Even round-section nylon line is able to cut grass and slight, woody plants […]

Trowels (Download) Trowels Description A trowel is a hand tool used to dig, smooth, or move small amounts of material such as mortar, grout or cement. Source: Extracted from www.Wikipedia.com 2009 History The trowel is traced to use prior to the 14 th century. In 1344 a trowel was known as a tool used to […]

Squeegees (Download) Squeegees What is a Squeegee Flat, smooth rubber bladed tool Some have a foam sponge adjacent to the blade Has been used in many ways Patented for window cleaning in 1936 Used to control water flow Squeegee Uses Originally used to clean boat decks Used on horses Used in photography and t-shirt printing […]

Spiders (Download) Spiders Spiders Why spiders are dangerous? Possess venom Toxic to humans in the quantities which can be delivered by a single bite of a single spider at one time. the symptoms of their bites can include necrotic wounds systemic toxicity death 98-99% of spider bites are harmless http://en.wikipedia.org/wiki/Spider_bite Spiders Most dangerous spiders in […]

Sledge Hammers (Download) Sledge Hammers What are Sledge Hammers? Sledge hammers consist of a handle and a heavy head that is widely used for breaking up or demolishing structural components or moving heavy items small distances Origins First use was in the ship building industry. Ships were built on large wooden sledges held by chocks. […]

Lightning (Download) Lightning Most lightning strikes average 2 to 3 miles in length, but can strike up to 10 miles laterally Lightning carries a current of 10,000 Amps at 100 million Volts (hotter than the surface of the sun). Lightning Distance Quick Facts Florida is the lightning capital of the world. Lightning is about the […]

LeafBlowers (Download) LEAF BLOWERS Gardening tool used to remove leaves and light debris from gardens, lawns, roofs, and roads Used for housekeeping on the construction site Can be hand-held, carried as a backpack, or pushed (with wheels) Hand-held Backpack Pushed Leaf blowers typically have 2 to 4 stroke engines and a nozzle that propels air […]

Lasers (Download) Lasers http://www.rainydaymagazine.com/RDM2007/Home/Oct2007/RainyDayScience/WickedLaser/FocusedBeam2Big.jpg Laser L Light A Amplified By S Stimulated E Emission of R Radiation “ Thus the laser is a device which produces and amplifies light.” OSHA STD 01-05-001 – PUB 8-1.7 – Guidelines for Laser Safety and Hazard Assessment A Brief History The mechanism by which this stimulated emission is accomplished […]

Housekeeping (Download) Housekeeping Source: http://www.healthandsafety.co.uk/shop/ Housekeeping involves keeping the construction site safe for workers and others, and covers such things as keeping work areas neat and tidy, removing waste, and laying out the site, storage and maintenance areas for accident/fire prevention. Introduction → scope Introduction → concern Good Housekeeping is the foundation of accident prevention […]

Heat (Download) Heat Heat in Construction Heat can KILL construction workers if dealt with improperly This is especially true in the southern states the summer temperature is extremely high Heat can also bring abnormal feelings to workers and significantly reduce their productivity Heat is dangerous in construction Emergency treatment after heat-related disorders appear is sometimes […]