  In the present work, we extract pairs of topological spaces from maps between
coloured operads. We prove that those pairs are weakly equivalent to explicit
algebras over the one dimensional Swiss-Cheese operad SC_{1}. Thereafter, we
show that the pair formed by the space of long knots and the polynomial
approximation of (k)-immerions from R^{d} to R^{n} is an SC_{d+1}-algebra
assuming the Dwyer-Hess'conjecture.
