Now, melt the wax at a very low temperature, and then add what is considered an overdose of benadryl to the mixture, heat what is considered an overdose of benadryl all and stir what is considered an overdose of benadryl until you get a homogeneous mixture.
Control handle and valve for a Westinghouse Air Brake. A railway air brake is a railway brake power braking system with compressed air as the operating medium. Modern trains rely upon a fail-safe air brake system that is based upon a design patented by George Westinghouse on March 5, 1868. The Westinghouse Air Brake Company (WABCO) was subsequently organized to manufacture and sell Westinghouse's invention.
To stop a train before air brakes were developed, an engineer blew a signal with the train whistle. This alerted the train's brakemen to apply a hand brake in each rail car. The brakeman would set the brake in one car and then have to jump to the next car and set that brake.