The whole derrick is set up by keys, no mortices or tenons being used, and thus the complete rig may be readily taken down and set up on a new site.
If the joint be provided either with projections and recesses, such as murtises and tenons, or with fastenings, such as pins or bolts, so as to resist displacement by sliding, the question of the utmost amount of the tangential resistance CQ which it is capable of exerting depends on the strength of such projections, recesses, or fastenings; and belongs to the subject of strength, and not to that of stability.
It is, however, differentiated from them all by having hewn stones, capstones, tenons and sockets.
Each board securely rested in two sockets of silver, having mortises into which the tenons of the boards entered.
Check your plan for dados, dovetails and tenons to be sure that the plans have the joint support that you'll need to support the computer.