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The Official Publication
of the Mason Contractors
Association of America
Masonry Saws: Weathering the Challenges of Time
Like the masonry craft, some tools of the trade continue to play a vital behind-the-scenes role in today’s building architecture.
Take for instance the masonry saw. For someone outside the masonry industry looking in, he would be unaware of the critical role a masonry saw plays. Most would even go as far to say how simple of a tool it appears. And, if one viewed a photo of a saw from years ago to one today, a person might consider these saws somewhat archaic with few changes. But, that comment would be the farthest from the truth. Masonry saws have adapted well over time to meet the needs of masons and the challenges they face.
For us at Norton Clipper, we started our business in 1937 as Clipper Manufacturing Co., with our first masonry saw that set a new standard for production when compared to the actual “clipper” mason who used a hammer and chisel.
The shape of earlier blade guards was square or octagonal. Cutting slurry would build up in the corners of the guards, eventually leading to corrosion. This build-up had a slope configuration when viewed. Norton Clipper redesigned the shape to a teardrop, allowing slurry to keep moving out of the way from the blade and saw. To this day, it’s Norton’s signature mark. Also the water distribution, on early models, was positioned to the front of the guard to keep the water on the cut. The problem was that if a smaller blade was used, the water placement was missed. A modification was made to move the water as close to the arbor as possible, providing better distribution. Both the guard shape and water placement increase the life of the blade, costing the user less over time.
As mentioned, basic frame designs today are similar to ones many years ago. Here is one that probably few consider: the water drain plug placement. We probably all can agree that the center of the pan provides one of the best places for drainage. But have you ever wondered why most saws today position that place to the back corner of the pan? Most people don’t. But, there is a least one reason to consider. Years ago, Norton’s product management team caught word of increased jobsite accidents with masons in the Northern states during the winter. What they found was that masons would cover the motor with a bucket to protect it, and then drain the pan to keep the water from freezing. The water on the ground would freeze, and the operator would come in the next day and slip on the frozen ice next to the saw. A simple fix was made by moving the drain plug to the corner, so a bucket could be set beneath the pan to catch the water. By having it in the corner, the bucket missed the adjustment bar of the foot pedal. Something so small to some, but as important to others as the blade guard change.
Being an operator, one can appreciate little things, like a sloped water pan. By sloping the front of the pan, it allows the operator to get closer to the foot pedal and table, while pushing it through. The additional room the slope gives also helps keep the operator from hitting his knee against the table when the pedal comes back up, and affords a more comfortable operating zone with reduced fatigue.
Frames have changed further to an open back that provides the mason the ability to push bigger materials all the way through for “pass through rip cutting,” versus the closed back that required a shorter cut, flip and cut other end. It’s a great time saver with a more accurate, straight cut.
But, no matter what type of saw you operate today, basic maintenance is critical to the life of any tool. You can go from the simple – belts may need adjusting and the motor or engine general cleaning and oil changes, to the more intense of blade shaft pulleys and water pump that require much more. Your owner’s manual is ideal for review on this subject to avoid potential costly downtime.
Today, we see more high-speed cut-off saws on jobsites. And, they, indeed, have their place. The value of a masonry saw – less operator fatigue, more precise cuts, continuous productivity, and, most important, improved safety – makes it hard to replace as a stationary saw on any jobsite.
It’s the rich history and remarkable usability and simplicity of the masonry saw that elevates it from potential dinosaur status to solid benchmark of today, able to weather many climate changes and provide performance, durability and dependability.
|Last Updated on Wednesday, 19 May 2010 16:30|