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SLAB HEAT STORAGE
For experimental purposes, I'd consider useing perlite under a primary slab that has a 'foaming agent' in the mix to reduce heat loss. On top of this would be poured a more conventional slab. The perimeter of the project would the be treated with rigid foam. We're not held to code for projects...- rufcut
- Thread
- Replies: 3
- Forum: Concrete Engineering general discussion
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mandrel repositioning
I want to run a mandrel horizontally and reposition it to vertical; as needed. Is there a brief description of this? More info is included in the gear and pulley section. Thanks much.- rufcut
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- Replies: 0
- Forum: Machines & Machining engineering
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miter gear solution or ...
I want to move a horiz. mandrel down to vert. and back as needed. Background to question: Miter gear A is drive. B and C gears are at right angles and engaged to gear A somewhat like idlers. Gear D is on original drive axis engaged with B and C. A yoke is installed outside B/C gear axis. A...- rufcut
- Thread
- Replies: 2
- Forum: Gear and Pulley engineering
