Category Archives: Know Your Elevator

Rotting from the Inside Out – My Tooth, Your Elevator Jack

Candy CaneRecently, I bit down a bit too hard on a candy cane and I felt a strange sensation. My mouth was suddenly filled with a substance that was more like small gravel or sand than a candy cane.  I knew that gravel wasn’t on the list of ingredients, which meant something I dreaded much more:   One of my molars was broken and the pieces filled my mouth. Ouch!

I’m obsessive about my brushing and flossing, to the point of pride.  But, little did I know, deep in the recesses of my #18 molar, insidious forces were at work.  Painlessly and silently, tooth decay destroyed my dental pride from the inside out, and made a dent in my bank account. What does this have to do with elevators? Find out here! 


Freight Vs. Passenger – The Difference is more than Size

Photo courtesy

The differences between freight and passenger elevators are as simple as the definitions of each that you can find in the American Society of Mechanical Engineers (ASME) – Code for Elevators and Escalators. Unfortunately, just like most code books, the definition doesn’t really reveal much. For instance the freight elevator is defined as, and I quote:

“An elevator used primarily for carrying freight” (no kidding) “and on which only the operator and the persons necessary for unloading and loading the freight are permitted to ride.”

The code does go on to indicate there are three different classes of freight elevator– general, motor vehicle, and truck loading–but beyond that there is little that legally distinguishes freight from passenger. This is confirmed by the definition of a passenger elevator. It is defined in the same publication as….Find out the answer here. 

All About Elevator Jacks

A view from under the elevator car of an in-ground jack.
A view from under the elevator car of an in-ground jack with the piston extended.

When it comes to many elevator applications, especially for buildings between 2 and 5 stories, you will find a hydraulic jack is a common, yet crucial part of the system that drives the elevator up. As a matter of fact, approximately 70% of all elevators installed are hydraulic in nature and contain jacks.  The jacks are part of a system that includes hydraulic fluid, tanks, motors, and pumps with the jack being the final piece of the system.  So, understanding the basics of the elevator jack is crucial if you are considering buying a new elevator or modernizing the jacks in an existing elevator.

Depending on the system you have, the distance your elevator travels, and the space available, you have several options available.

Click here for an explanation of each kind of elevator jack. 

Speed Does Not Mean Fast

1_thumbRecently, it was announced that the CTF Finance Center in Guangzhou, China broke records as the fastest elevator in the world to date. Believe it or not, it travels at an astounding 46.9 miles per hour straight up! Wow! An elevator in Shanghai, China (Shanghai Tower) finishes in second place with a speed of 42.8 mph and the fastest North American elevator clocks in at a paltry 22.7 mph in comparison. It is located at the Freedom Tower at 1 World Trade Center in New York. It is a bit slower but the show you get going up and down is worth it.

As it turns out, the elevator in your building is not breaking any world records, but, unless you are in the Willis Tower in Chicago or the Empire State Building in New York, you probably don’t need a three million dollar monstrosity that can hit highway speeds.

Quick! Click here for more on elevator speed.

Keep Your Cool – Winning the Temperature Battle

Clean Machine RoomIn our office, there are a handful of dictators vying for power, and yes, they know who they are. They run roughshod over the whole office, seizing control, forming alliances and flexing more muscle than Mussolini in pre-war Italy. Because of the internal power struggle, there is more drama, intrigue and manipulation than in an episode of Game of Thrones as hopes are raised then dashed, and the struggle for control reaches a literal fever pitch.

What is the object of their desires? What do they wish to control beyond anything else? The office thermostat. Since the advent of modern history and the birth of Willis Carrier (of Carrier Air-conditioning fame), I feel I am safe by saying there is nothing that has affected more lives, created more tension and led to more divorces than the temperature control on a heating and air-conditioning unit. The problem is some like it hot and some like it cool, and they are willing to do anything to get their way.

When it comes to your elevator machine room, there is also a temperature struggle, and the consequences of that brawl may be more significant than just a little discomfort or office politics. Click here to read the rest of the article and guidelines.