In re Young

G-ARRett, Juclge,

delivered the opinion of the court:

This is an appeal from a decision of the Board of Appeals of the United States Patent Office, affirming the decision of the examiner, rejecting six claims (Nos. 4 to 9 inclusive) of appellant’s application for patent relating to machines for making reinforced concrete beams. Three claims, Nos. 1, 2 and 3, stand allowed and are not here involved.

Claim 4 is quoted as illustrative; claim 6 is also quoted, because ■of a particular limitation contained therein:

4. In a machine for making concrete beams, the combination of a main track ■or way, a…