Melcher v. Pennsylvania Threshermen & Farmers' Mutual Casualty Insurance

Opinion by

Mr. Justice Musmanno,

The Pennsylvania Threshermen and Farmers’ Mutual Casualty Insurance Company, the defendant in this case, entered into a Workmen’s Compensation insurance contract with the plaintiffs Thomas Q. Melcher and Dennis Q. Melcher, trading as Penn Lumber and Millworks. The policy contained a so-called Truck-men’s Endorsement which is vital to the disposition of this lawsuit and will be referred to later.

*127On September 14, 1949, the Melchers leased to Win-field A. West a tractor-trailer, with an accompanying driver Charles Wall, under an agreement which provided that the…