Coupling for hoses of different diameters

Claim 1

A hose coupling for connecting ends of hoses of different diameters together including a. a metal sleeve providing a shoulder intermediate its ends dividing said sleeve into sections of different diameters which receive therein hose ends of different diameters, b. an elongated metal tube of a length less than said sleeve divided into end portions of different diameters and insertable within said sleeve with its different diameters corresponding to the different diameters of said sleeve, c. said tube at its junction between its different diameters providing a shoulder equidistant the ends thereof adapted to be placed in spaced relation to said shoulder of said sleeve when said tube is inserted therein, and d. a circular metal washer having an outer diameter slightly less than the inner surface of the larger diameter end section of said sleeve said washer having an inner diameter slightly and greater than the outer surface of smaller diameter end portion of said tube and mounted on said tube and interposed between and in abutting engagement with said shoulder of said sleeve and said tube so as to space said tube from said sleeve when said tube is inserted in said sleeve, e. said washer adapted to abut the opposite ends of the hose end portions when the latter are inserted into the coupling and completely surround said tube within said sleeve, so as to restrict longitudinal movement therebetween and said sleeve adapted to be circumferentially crimped on the end portions of the hoses.