The History of Invention of Portable Lighting Tower
Who invented the 1st conveyable lighting tower?
This depends principally on your definition of a lighting tower. A detailed definition may include something as simple as a candle or primitive torch placed on a tall mast to cast light over an enormous area, such a device has likely been in use since the Stone Age.
In more up to date history it’s un-clear as to when the modern lighting tower was invented. Researching patent applications indicates that machines not dissimilar to today’s lighting towers were being designed in the 1930s.
A patent from 1932 shows what might be the first machine of its kind filed in US patent 1934576 and is named as a Portable floodlighting unit for airfields.
The patent describes a chassis with 4 wheels at every corner ( permitting the machine to be towed ), a generator powered by an engine and one giant electrical lamp at every end of the car. The machine is intended to be used to provide on-demand lighting of alternative landing sites at airports on occasions when the main landing areas are out of use due to adverse weather conditions.
More recently in 1980 a US patent 4181929 was filed for a Portable illuminating tower that illustrates a much closer resemblance to current day lighting towers.
The US patent 4181929 describes a cartable lighting tower composed of a base frame ( which has an engine and generator ) and a vertical, extending, hydraulic mast with two electrical lamps at the higher end. The unit doesn’t permit towing but instead is lightweight and compact enough to be simply transported. The design also includes jack legs that are now common place on all lighting towers to guarantee stability in high winds.
This is quite a big development in the history of the lighting tower as this patent mostly forms the root of most current day lighting towers which contain similar elements such as a base that stores the engine and generator together with an extending hydraulic mast that supports the luminaries.
The subsequent patent was filed later on in the same year of 1980 but was for an answer to provide more extensive illumination. The US patent 4220981 describes a framework with four wheels to hold the generator and engine and two folding telescopic masts at opposite corners of the frame that each hold a cluster of electrical lamps. The design also permits for the masts to be revolved enabling finer control of the area of illumination. By offering 2 masts the light tower also allows for illumination over nearly all sides of the machine. This is unlike prior light towers which often offer illumination on only one side of the machine.
Since 1980 substantial progress has been made by lighting tower manufacturers. Though the final design has varied little from those seen in the 1980s many improvements have been made to make lighting towers easier to use and more green.
The Hylite lighting tower from Taylor Construction Plant includes Adjustabeam technology which permits the user to adjust the direction of each lamp from the ground. The TCP Hylite also has a flexible framework design which permits just about any generator to be used to power the light heads.
The TCP Ecolite lighting tower in addition has broken new ground by utilising intensely cheap lamps to reduce fuel consumption seriously, which is particularly timely seeing as global warming is starting to become a more and more common concern.
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