earthplatform.com

Results 1 - 2 from 2 for shelter ventilating pump in 0.305 sec.

Ch. 5: Shelter, the Greatest Need - Nuclear War Survival Skills
Appendix A.2 show the parts of this shelter, -except for the essential shelter- ventilating pump installed in its entrance trench. The following account of how an urban ... could be enlarged and converted to a steeply inclined stairway. The importance of giving inexperienced shelter builders detailed instructions is illustrated by the unnecessary work done by the young women shown ...
oism.org

App. B: How to Make and Use a Homemade Shelter-Ventilating Pump - Nuclear War Survival Skills
App. B: How to Make and Use a Homemade Shelter-Ventilating Pump I. THE NEED FOR SHELTER A... To form a hem along one of the 30-in.... Fig. ... each occupant more than is required to maintain tolerable temperatures at night these advantages result: The shelter occupants will be exposed to effective temperatures less than 2oF higher than the current effective temperatures ...
oism.org More from this site