LIST OF PATENTS, Issued from the United States Patent Office for the week ending May 1, pertaining to fire and water departments. Specially reported for FIRE AND WATER by Geo. R. Byington, solicitor of patents, Washington. D. C. Printed specifications and drawings of any patent here mentioned, will be sent to any person upon receipt of twenty-five cents. E. A. Sherman, Plover, Wis., ladder. A. H. Mellert, Reading, Pa., fire hydrant. I. W. McGaffey, Chicago, Ill., hose nozzle. J. Randall, San Francisco, Cal., fire kindler. J. W. Frey, Baltimore, Md., fire escape ladder. H. L. Boyle, Grand Rapids, Mich., fire escape. H. Carroll, Chicago, Ill., fire alarm signal circuit. S. H. Harrington and E. Gafstrom, Columbus, O., device for extinguishing fires in railway cars. S. H. Harrington, Columbus, O., device for extinguishing fires and preventing the escape of steam in railway cars.