Abstract: A blasting cap to primer adapter permits the use of any size of a blasting cap and associated shock tube in combination with commercially available primers and detonating cords. In one embodiment, a bracket arrangement and cord tunnel assembly having a plurality of tunnels is employed attachable to a primer having a tunnel through which an associated blasting cap shock tube may be looped, while a length of detonating cord may be similarly directed through the tunnel assembly of the adapter. An ignition of the detonating cord will result in a concurrent ignition of the shock tube to effect the desired explosion of the primer. Through this construction, any number of primers and blasting cap arrangements can be attached to and ignited by a single detonating cord.

Abstract: First and second generally U-shaped frame sections each including a pair of generally parallel arms interconnected at one pair of corresponding base ends by means of a connecting structure extending and connected therebetween are provided. The first frame section includes structure for support from a vertical support surface with at least the opposite ends of the connecting structure spaced outwardly from the support surface and the other pair of free ends of the arms projecting horizontally outwardly away from the support surface. The arms of the second section are resiliently urged toward slightly outwardly divergent positions and yieldable inwardly toward each other into substantially parallel positions aligned with the free ends of the arms of the first section.