Gwyn Davies' Time Machine (Earth-Prime)

"I built my time machine for a sacred purpose. And I'll be damned if I'm letting a two-bit liar use it."

- Gwyn Davies to Sara Lance

The first time machine in existence was created by Gwyn Davies and first activated on November 7, 1925

Divine Mission
"Time travel is my divine mission."

- Gwyn Davies

After the death of Alun Thomas during the Capture of Mametz, Dr. Gwyn Davies was guilted and worked extensively in order to travel back in time to save his life. He later moved to New York City and worked under Thomas Edison, secretly working on his project and using company resources to complete his time machine.

Time Travel Experiment
On November 7. 1925, Davies left Edison Labs and encountered two "admirers", who in fact stole the blueprints to his time machine. Unfortunately, the two were unable to replicate the machine due to the lack of supplies and decided to steal Davies' machine instead.
 * -|Current Timeline=

Later that day, the Legends infiltrated Edison Labs in search of the final part of the machine, hoping to complete the machine. They were caught by Thomas Edison and Davies was placed in Bellevue Hospital for his insane idea of time travel. Thankfully. Sara Lance was able to locate him and reveal her identity as a time traveler. Davies was in disbelief and refused to accept her rescue, though changing his mind when she promised to save Alun Thomas once he successfully assisted them.

Once they returned to the Davies' residence, they completed the machine and prepared to jump to 2021. Meanwhile, Astra Logue cast a spell on the city's power supply, shutting down all electricity to prevent Davies' death in the original timeline. Gideon soon explained the situation to the Legends and began the time travelling process according to her instructions, preventing Davies' death while evading a replicated Waverider, a Timeship from the distant future.

On November 7, 1925, Dr. Gwyn Davies executed a time travel experiment. His concept later laid the foundation for the concept and was able to lead to the creation of the Time Bureau nearly a century later. However, on the night of the experiment, the machine was damaged from electrical overload, and he passed away during the accident.
 * -|Original Timeline=

Legends of Tomorrow
With Davies' death averted, the Legends crashed in Chernobyl on April 26, 1986, with the time machine's chrono-gauge and ignition coil severely damaged. Davies was initially pessimistic over the chances that he could find metallic materials to conduct electricity, but soon discovered the parts required to repair the machine when he was captured by the Soviet Army.

When the Waverider once again located the Legends, Davies activated the time machine and saw a man dropping from the sky on a toilet with a parachute. The Legends then accelerated the time jump process and evaded the Waverider, though the machine was once again damaged by Bishop's surprise landing. Davies was furious at Bishop for damaging his precious machine and ordered the Legends to create 18 aeroimpetus stabilizers in a nearby aircraft factory. Eventually, they were able to repair the machine with the assistance of Bishop, who installed a Neural Navigation Interface created with a Speak & Spell to ensure an accurate time jump. They were then immediately ambushed by a group of robots and Gideon quickly wore the interface, landing next to the team for their evacuation. They urged Gideon to bring them home, though was unsuccessful as she subconsciously considered the Phantom House as Gary's home.

The time machine was later transformed into a cassette tape and brought out of Hell to allow the Legends to time jump to Sarajevo June 28, 1914, in order to prevent the Assassination of Archduke Franz Ferdinand and lure the robot army.

Designs
The time machine was created with metallic materials and appears to have a dome-like frame. Additionally, the chrono-gauge and the ignition coil are both sequenced to the directional compass, controlling the major Time Travelling function, while the aeroimpetus stabilizers are crucial for the activation of the vehicle

Functions

 * Time Travel: As the first time machine, the vehicle is capable of travelling through time in a beam of blue light. However, as the technology was not as advanced as other similar vehicles like the Waverider, it is extremely vulnerable to external damages.
 * Connection to Gideon: The Neural Navigation Interface was created by Bishop to compensate the machine lacking the ability to compute the nearly infinite simultaneous variables required to make an accurate jump. With the interface, the time machine can be controlled through simple commands from Gideon's mind . However, this was proven to have multiple drawbacks as Gideon would give incorrect commands from her subconscious.