Pi Day is March 14. This year you can help celebrate by answering the question at the bottom.
Pi is the constant ratio of a circle’s circumference to its diameter, no matter what size the circle is. This is useful knowledge when you work with water pipes or oil or gas pipelines, and you need to replace part of it. You can measure the circumference and divide by pi. But there’s an easier way to do that.
Let a Lufkin Diameter tape measure do it for you. You just wrap it around the pipe, and read the diameter. Mathematicians call pi an irrational number, since it goes on for an infinite number of decimal places, but using a diameter tape is a very rational and easy way to find the diameter of a pipe. To see a little video on How to measure the diameter of a pipe, just click here.
Tally Books are used by workers and inspectors in the oil and gas industries. These books are made rugged for outdoor use. Here is how they are constructed:
For stiffness, we start with chipboard. This is the solid gray “cardboard” material that cereal boxes are made out of.
The 2 pieces of chipboard (front and back of the tally book) are covered with a colored vinyl for protection from the elements. Vinyl comes in a variety of colors. The inside layer is usually the same color as the outside layer.
To hold the paper pad (or stone pad), we add a front and back clear pocket. So the first and last page of the pad are slid into those two pockets. For durability, the first and last page are made of heavier paper. This pad is held in place just like the check register in your vinyl checkbook.
Not in this order, the imprinting is done on the outside cover and the inside pockets.
Printing is done in 3 different ways: Screen printing, Hotstamping, Full-color imprinting.
Sometimes we add a clear vinyl pen loop on the side. We can also add an insert. It has 3 clear vinyl pockets so that you can add papers and cards of your choosing.
Are needed by your employees if they need to make notes continually in the field. They are essential to the oil and gas industries. Oilfield and gas field workers and inspectors need to have durable pipe tally books to keep their records current and safe.
Give your employees a sense of pride. Seeing your company logo on the books tells them that they are team members.
Oil companies are always busy. The drillers need to keep track of the amount of pipe they are putting down the hole. The well operators need to keep track of yield, and what the gauges say. The supervisors need to keep track of employees, and their work hours.
These 2 Tally Books are vital to the oil industry. They are weather-proof, and can fit into your shirt pocket or pants pocket.
The flexible book 3308 is great for a back pocket. It bends when you do.
Pipe tally books aren’t just for the drilling industry. They are used by many other people to record readings and data in the field. They are small enough for a pocket, and water resistant. Tally Books with your company logo are a great way to “woo” your customers, if they are on this list:
Oilfield workers and inspectors
Gas well workers and inspectors
Electric power companies
Your corporate logo can be put on the front and back cover, even in full color. The new optional “stone pads” look like paper, but they are water resistant, and cannot be torn. If your customers use your tally books, they will look at your logo many times a day. That’s the best way to target your market advertising. They are also made in the USA.
Tally Books are similar to jotters, or pocket notebooks. All are useful for writing notes and small enough to keep in your shirt pocket or jacket pocket. What is different about “tally books”?
They are protected by a heavy duty vinyl cover, to help keep the pages dry when
you are working outside.
They have an optional “stone pad”. That is not paper, but it looks like paper. Stone pads are water resistant and you cannot tear them. If more people knew about them, they would prefer them over paper pads.
They have an optional clear vinyl 3 page insert. You can insert your own tables and data sheets for easy reference in the field.
For oil and gas industry users, the tally books have optional oilfield stock art which complements your company logo.
All-in-all, tally books are very rugged pocket notebooks for use in all kinds of weather. They are preferred by oil, gas, and wind energy companies. They use them for keeping track of repetitive data entries.
64ths or 100ths? This question applies only if you need the Inch version of a pipe diameter tape. If you are in the oil and gas industry, you probably prefer the 100ths calibration. If you are in the boat or automotive industries in the USA, you would probably prefer the 64ths of an inch calibration. If the SKU number has a “d” in it, this means it is calibrated in 100ths of an inch.
Size. The Lufkin models of the pocket diameter tapes will measure pipe diameters up to 23 inches. The Pi-Cobra models will measure pipe diameters up to 38 inches.
Most people don’t use a pipe diameter measuring tape. The reason is not that they don’t need one. The reason is that they don’t know how powerful it is. They don’t know what it can do for them. Just ask the people who use one every day:
pipeline installers and repairmen
oil and gas rig workers
sport ball makers
They will tell you this: If you want to know the outside diameter of a pipe or any round object, just wrap the diameter tape around its circumference, and read the diameter on the tape. Simple. You don’t have to divide by pi. The best part of this: Even if the pipe is not perfectly round, the od diameter tape will give you the average outside diameter as if it were perfectly round.