Sec. 4. No provision of this Act shall affect the rights of any parties involved in pending litigation at the effective date of this Act. The provisions of this Act are and shall be held and construed to be cumulative of all laws of this State on the subject treated of and embraced in this Act. All laws or parts of laws in conflict herewith are hereby repealed. If any section, subdivision, paragraph, sentence or clause of this Act shall be held to be unconstitutional, the remaining portions of this Act shall nevertheless be held valid and binding.

Acts 1955, 54th Leg., p. 660, ch. 232.