is held in a bearing on with a vertical side and inclined sides, and suspended slotted ends of the arms, thereby moving each arm the main frame, but its outer end rotates in a bearing from the hinge post through this frame. The outer along as each ball passes through, and moving alter- on a pivoted… … vice for use in connection with pianos and organs, for It is illus- trated herewith, and has been patented by Mr. Charles Z free end, the outer end of this pivoted and weighted S. Mason, of El Modena, Los Angeles County, Cal. A ‘JACKSON’S CHECK-ROW ATTACHMENT FOR PLANTERS, arm being also connected,…
Internet Archive · Public domain (published before 1931). Free to use for anything.