thacher slide rule

Isaac Kremer/ November 23, 2025/ / 0 comments

A slide rule of the revolving type having an exterior frame of twenty graduated bars attached to rings at their ends. The slide is an interior cylinder and is capable of both rotation and sliding inside the bars. The exterior frame of bars is also capable of rotation. A most valuable instrument in any bridge engineer’s office. (Bridge, 2019)

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IsaacKremer.com is the personal website of Isaac Kremer, MSARP, a nationally recognized leader in the Main Street Approach to commercial district revitalization with over 25 years of experience. Kremer, New Jersey's first certified Main Street America Revitalization Professional (MSARP), has served as founding executive director for organizations like Experience Princeton and the Metuchen Downtown Alliance, which won a Great American Main Street Award under his leadership. He recently became director of the Royal Oak Downtown Development Authority in Michigan.

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