First, let's talk common sense!
A butcher who consistently tries to slice meat with a dull knife or a baker who similarly slices the bread with a dull blade. or even a stenographer who attempts to transcribe blurred and blotted notes, soon find themselves without a job or even, in some cases. out of business-and so on down the line.
However, you can walk into countless machine shops and find machinists grinding precious steel with dull. clogged up grinding wheels. or dressing these precious grinding wheels with dull tools-but the machinist doesn't lose his job, nor does the machine shop go out of business. This seems to be the exception to the rule. They just go on spending good money by wasting precious labor. purchasing more grinding wheels, more steel. etc., and adding headache to heartache. They blame the grinding wheels, the steel and even, in some cases, the heattreated for dies falling apart, when all the time the dies have fallen apart because the steel which went into the dies had minute checks invisible to the naked eye. caused by the friction in the grinding due to dull. cloggedup grinding wheels. It's sad. but true.
Now, mind you. I wasn't always this smart either. I've owned and operated a machine shop for 35 years and ruined many hundreds or even thousands of dollars worth of steel and paid for lots of unnecessary labor before I decided to look into this grinding problem.
I experimented with all types of grinding wheels until I eventually felt that the trouble must be in the dressing. I studied and experimented until I came up with a prototype of the Model No. 1 L. NEWMAN Dresser. It was crude, but it did the work. I pulled out every discarded grinding wheel I had in the shop-some of them over 25 years old. We dressed the wheels and I just wish every one of you could have seen the sharp cutting edge or the hills and valleys we got in those old wheels. My men began to wonder how we ever got along without the dresser. I had no idea of putting this little dresser on the market. It was for our own shop. but since our shop is known for specialty design. etc., we have many outstanding superintendents and manufacturers coming in for consultation. We showed the dresser and received several orders right then and there. I couldn't say "no." but was somewhat beside myself as to what to charge for the dresser. I couldn't ask them to pay for a custommade tool, so, after much deliberation and more experimenting, l decided to put the dresser on the market.
Soon, shop foremen, engineers, machinists and superintendents were telling us of their success with this little dresser. The comments were so exciting and so favorable that we went right ahead and developed other models for use on pedestal, cylindrical, surface and universal types of grinders.
We have found and have been told many times over that with the L. NEWMAN Grinding Wheel Dressers. it is possible to actually get from 2400 to 3000 successful cuttings. compared with other methods of dressing where it has been possible to achieve only from 800 to 1000 cuttings. and not always successfully.
However, even though it is common knowledge that this grinding problem exists in far too many machine shops, we still find "Doubting Thomas's.'' There just seems to be a natural tendency to overlook the simple cures in life. Being a simple, humble person myself. I look into the simple cures and devise the most simple. sturdy and efficient tools possible, and therein is the answer to the question so often asked, ''How did you ever devise such a simple little tool to do this important job?''
By placing the Dresser Housing parallel. the Dresser Wheel is positioned at a Tangential Angle With the Grinding Wheel.
TANGENTIAL ANGLE PROVIDED ON l ALL L. NEWMAN DRESSERS. The Dressers Housing should be placed parallel with the Grinding Wheel.