Construction of Screamroller including the "Toping Out" a tradition with almost every coaster, or large building. Usually a christmas tree is hung from the highest point as in seen in this photo.
Screamroller Panel and Operation
An interesting addendum to the story is the inclusion of not only the Screamroller Panel photo, but also identification of what each button/control does. Many of these steps and controls are no longer used in normal operation of more modern coasters, since much of the fine-detail in driving these older coasters has been mechanized with the more modern varieties.
9)Dispatch. This is an illuminated push button to release the station brakes. There are two interlocked functions involving this button. One ensures that a train comes to a complete stop before it is released and the other ensures a safe interval between trains. A train may be dispatched only when the button is lit. However, the button may be pushed at any time to adjust the position of the train to facilitate loading.
10) Release Trim Brake. This is an illuminated push button with a light indicating that the trim brake can be released. The brake can only be released after a train has been in the brake for several seconds. This prevents the release of the brake as a train approaches.
11) Set Safety Brakes. An illuminated push button allows the safety brakes to be set at any time. This may be done to test the brakes or to over-ride the automatic system and stop an incoming train. The button will be lit when power is applied to release the brakes. (add on: Safety brakes are the higher pressure version of trims, that will stop a train in an emergency)
12) Open/Close Gates (Not Original). Both Screamroller and Orient Express opened without gates, these controls were added after the fact.
13) Buzzer (Not original). This is automatic on more modern coasters. The loud buzz heard when the lift starts, used to notify anyone on the lift that it is about to re-start.
14)Zag Brake (Not original), a brake located at the base of the lift. It is unknown what exactly this break was added for, whether to line the train up to the lift itself, stop the train at the base on the lift, or some other unknown purpose. Orient Express did have this same control.