Revolving doors are a very popular form of entry for businesses these days. You see them in office buildings, hotels, large commercial properties. What many people don’t know is the history behind these doors. As it turns out, commercial revolving doors have been around for a lot longer than you think.
The Earliest Revolving Doors
In order to determine exactly long commercial revolving doors have been around, we need to go back through the patent filings. The very mention of them comes from a man in Germany. He was named Bockhacker, and he came up with an idea for doors that rotated.
In the application, which dates back to 1881, he mentions that the doors are designed to not allow any air in as they circle around. This was a novelty at the time, and there are no records to show whether or not his idea was a success. Yes, he received the patent for these early commercial revolving doors, but it appears that not many of them were sold.
Now Let’s Move to America
Several years later, a man in America came up with something that closely resembles the commercial revolving doors that are used today. His name was Theophilus Van Kannel. He filed for his patent in 1888. He described the doors as having three different compartments in them, and also mentioned that they worked like “storm doors.”
And, unlike Bockhacker’s idea, we have proof that Van Kannel really sold the doors that he designed. In fact, the Franklin Institute picked up on them, and even gave him public recognition for the design back in 1889, one year after he filed the patent.
Ten years later, these revolving doors found their way to New York City. They were made of wood back then.
The Benefits of Commercial Revolving Doors
The one thing that both Van Kannel and Bockhacker pointed out is the fact that these doors were very environmentally friendly. Both created the doors for this reason. They were trying to solve some of the larger problem of the day, most of which revolved (no pun intended) around keeping the inside of buildings warm.
Back then, many heating systems weren’t efficient, although they were better than the old wood burning stoves of the past. However, energy loss was still an issue. Many of the buildings that picked up on the commercial revolving door idea were those that were concerned about keeping the inside of their spaces warm in the winter. On top of this, these doors also kept out the rain and the wind – and especially the snow –all of which entered buildings far too easily through standard doors.
Modern Efficiency Tests
Over the past few years, commercial revolving doors have been tested time and time again to see how efficient they really are. One of them pointed out just how much carbon could be saved (14.6 tons, for the record) and how big of a difference in heating costs is involved there. In case you’re wondering, that difference is an astound $8,500. The comparison was made between standard doors that swing open and these revolving doors.
As you can see, if you choose revolving doors, which have a seal around every “door” that revolves, you’ll lose much less energy. This not only goes a long way towards saving your company money, but it also makes your building more environmentally friendly. You won’t spend as much on heating and cooling, depending on the time of year, and you’ll also have another talking point when you need one. These doors really do help quite a bit.
Style and Security Matters
On top of this, commercial revolving doors have a number of security enhancements that add to their features. They make buildings look more complete than standard swing-style doors. You can tell right away which companies went for the upgrades and which ones didn’t. The ones that went with commercial revolving doors seemed to want to spend more on customer experience over the ones that chose the old-fashioned doors. However, we digress. Let’s go back to security.
Advance Access notes just how secure these doors really are. Many people point to their frequent movements are part of the fact that commercial revolving doors aren’t secure. This isn’t true, however. As it turns out, those doors can be locked when necessary, making them very safe and secure which is of paramount importance for any business choosing a revolving door system.
On top of this, you can even add in some custom features that add to the overall look and feel of the doors. This means that you can include display cases in the center or even things that hold plenty of information. Doors really should be useful, and the history of these commercial revolving doors really shows that they were designed to be this way.