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Medford Historical Society Papers, Volume 6., The Lawrence Light Guard.—Continued. (search)
es. When John Albree brought it here, perhaps twenty years after it was made, it had a bell on top supported by the four finials, which are pierced for that purpose. It had a short, bob pendulum that received its name from its rapid appearance at either side through slits in the doors, which have also disappeared. This bob pendulum with this escapement was of the form in use from 1658, when the pendulum was invented, until the long, or royal, pendulum and anchor escapement were invented in 1675. Sometime in the eighteenth century the clock fell into the hands of a blacksmith who fixed clocks when horseshoeing and nail-making were dull. He cleared away the alarm and its works to make the necessary changes so that he could attach the long pendulum. The form of the grandfather's, or hall, clock was developed from this clock. First, a hood was made to keep out the dust; then the hood was supported by a long case which protected the pendulum, for the hanging weights and swinging bob