Abstract: The invention pertains to apparatus for forming signs with a motor driven router. A frame defines a surface for supporting the sign panel to be routed, usually wood, and for supporting the letter forming templates. A carriage linearally movable upon the frame supports a polygonal, four-sided linkage, a template follower is mounted upon one of the links, and the router is also link-mounted. By varying the position of the linkage pivot points relative to each other, and the location of the template follower, a variety of letter styles can be produced from a single template, and a characteristic of the apparatus lies in the excellent visibility provided of the router during operation.

Abstract: A combination nocturnal and sundial celestial timepiece comprising a horizontal base marked with the cardinal points of the compass with a central post having an east-west adjustable pivot at the center of a vertical protractor or latitude scale depending in a vertical plane with spaced oppositely extending legs with aligned apertures for setting the protractor at the latitude of the observer so that the apertures align with the polestar, when the protractor is in the vertical north-south plane. Mounted around and pivoted on a hollow sleeve through the aperture at the upper end of the protractor are a circular date and time dial and a pointer; the outer periphery of which dial is calibrated in the days of the year and can be set for the date with the edge of the protractor and the inner peripheral dial is calibrated in the 24 hours of the day.