Garage Doors and Shutters | Powell Doors
Security Shutter Doors and Garage Doors
A few days after the New Year we fitted a Gliderol manufactured GRD motor with two handsets on a garage door in Arddlin-Wales. The old motor did not work, although the door was installed relatively recently by another supplier and customers, an elderly couple suffered from opening their garage, as an additional inconvenience, the alarm… Read More
Last week we installed a motor on a garage door in Liverpool. The door is a Fold-up / Roll-up type, which was opened manually. Our customers have two small, wonderful children, who, however, play too often with the door and for their safety, as well as to create additional comfort, our customers called us with… Read More
Indupart supply a three phase controller with their rapid action Italian made doors. Today I attended a job where a recurrent problem needed solution; and, a simple thing had to be done just to make the door move to the floor. The door was able to move up okay, but could not move down more… Read More
I attach a video demonstration of a recent project. The tubular motor for roller blinds encloses a small induction motor. Due to its size, it gets hot very quickly. It has various built in features: Thermal overload protection Built in brake to allow doors to remain open or half-open Capacitor for fluent start and run… Read More
Yes, this motor is a beauty. While playing one of Bach’s two part Inventions the other day, I heard my washing machine give out a huge groan. I had left it on, rolling about while I played the piano. On concluding my playing, I went into the kitchen to find a pall of smoke and… Read More
SDI design circuit boards for – among other things – garage door control. The PCB here is photographed on an engineer’s formica table; that is a consequence of the honest marketing skills of an engineer, I am sure. The board shown is the main control system for our Symbolic Instruments panel. Populated sparingly as shown,… Read More
The following project presents a hardware device to produce random numbers. This is not an easy thing to achieve in any digital device. Software alone cannot produce random numbers. Why we should need them … is something upon which we shall keep our own counsel for now. It works on the principle of avalanche noise… Read More
