This section is from the book "The Gardener V3", by William Thomson. Also available from Amazon: The New Organic Grower: A Master's Manual of Tools and Techniques for the Home and Market Gardener.
The time to prune these should be the same as the others, but few of them will bear or are beautified by hard cutting. Gloire de Dijon is one of the most rampant amongst them. It is not well suited for dwarf or standard in beds amongst others, but should be planted where space is afforded to ramble. Here only the very smallest of the shoots should be cut out, and the strong ones must only have their points cut off, if it is desired that they should throw out shoots and clusters of blooms from every bud. Marechal Mel has the same habit. Others, when growing in beds, must all be pruned in proportion to the growth they have made, but never heavily or too early, as many Tea Roses have very delicate constitutions, and a severe winter or spring often injures the wood to a considerable extent. We allow all our Tea Roses to become more bushy than the H. P.'s, and the pruning they get is simply a thinning out, not a cutting in; and with the majority this answers better than any other way we have tried.
All climbing Roses against walls, pillars, etc, are treated in the same way - always allowing the best formed and matured shoots to remain, and never leaving any small growths that are likely to be flowerless to make any headway.