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Wisconsin Historical Society

Drawing

John Muir's Clock Design

John Muir's Clock Design | Drawing | Wisconsin Historical Society
Sketch of John Muir's clock design.The built clock was a combination of scythes, wheels and arrows. A rough bough of burr oak was set upon a base incrusted with moss. In one of the branches hung a miniature scythe with a regularly fashioned snathe and handles. At the place of union were attached two wooden scythes, swelling slightly from each other, but united at the points. Filling the space between the scythes from heels to points was a succession of wooden cog-wheels and small wooden dials. Depending from the scythe points was a wooden pendulum in the shape of an arrow, hanging point down. At its lower end forming the ball of the pendulum, was a cluster of six copper cents in use at that day. To the uppper end of the arrow pedulum was attached two tin copper scythes (also formed out of coins) which, as the pendulum swung, would move as in mowing, the points of the scythes at each swing catching a cog in the little wheel placed there, thus setting in motion the whole machinery. In addition to the records of the larger clock, this one told also the month and the year, and could be attached to the bed alarm.
DESCRIPTION
Sketch of John Muir's clock design.The built clock was a combination of scythes, wheels and arrows. A rough bough of burr oak was set upon a base incrusted with moss. In one of the branches hung a miniature scythe with a regularly fashioned snathe and handles. At the place of union were attached two wooden scythes, swelling slightly from each other, but united at the points. Filling the space between the scythes from heels to points was a succession of wooden cog-wheels and small wooden dials. Depending from the scythe points was a wooden pendulum in the shape of an arrow, hanging point down. At its lower end forming the ball of the pendulum, was a cluster of six copper cents in use at that day. To the uppper end of the arrow pedulum was attached two tin copper scythes (also formed out of coins) which, as the pendulum swung, would move as in mowing, the points of the scythes at each swing catching a cog in the little wheel placed there, thus setting in motion the whole machinery. In addition to the records of the larger clock, this one told also the month and the year, and could be attached to the bed alarm.
RECORD DETAILS
Image ID:4949
Creation Date: 1863
Creator Name:Muir, John
City:
County:
State:
Collection Name:
Genre:Drawing
Original Format Type:drawings
Original Format Number:PH 4145(5)
Original Dimensions:16 x 14 inches
SUBJECTS
Inventions
Clocks and watches

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Reference Details
Location:Wisconsin Historical Society Archives, 4th Floor, Madison, Wisconsin

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