486 Y. Shapiro et al. / Sensors and Actuators A 167 (2011) 484–494 Fig. 4. A silicone rubber actuator in initial (a) and pressurized (b) positions accompanied by swelling. Fig. 5. Actuator cut-section and isometric view. (a) Square (b) Stamp, body yellow, hoops green, markers red, inlet blue. (For interpretation of the references to color in this Building Codes often require separate building compartments to limit the spread of fire and smoke. Ventilation ducts often penetrate these compartments. Traditional methods to achieve compartmental fire-rating use conventional SMACNA Riser Ducts + 2-HR Fire-Rated Gypsum Enclosures.
Automatic Secret Library Bookcase Door. by Chad King | Aug 12, 2016 | Stash Pics. This secret bookcase door project got taken a little farther than most. After building a bookcase door that slides into a false wall cubby, user Kirzbleen at Instructables added an actuator with programming to open the door automatically. I saw a thread earlier about someone mounting an ammo box under their bed and I thought, "I wish I had some secret place in my truck to hide something." Anyone else here have a secret compartment?
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