clock timing weights
Datecirca 1905
Inventory Number2016-1-0053e
ClassificationClock Timing Weights
Subject
Maker
Seth Thomas Clock Company
founded 1853
Maker
Central Scientific Company
1889 - 2000
User
Harvard College Observatory
founded 1839
User
Oak Ridge Station
1931 - 2005
User
George R. Agassiz Station, Harvard
1951 - 1982
Cultural Region
Place of Use
Material
Description2016-1-0053 is the Seth Thomas regulator clock from the 16-inch Metcalf astrograph building.
a is clock in wooden case
b is pendulum
c is clock weight
d is winding key
e are timing weights in wooden tray plus 2 g scale weight by Central Scientific Company in paper envelope
The clock timing weights are brass and held in an oak tray. The underside of the tray is marked in pencil: 24". There is a lead disk marked 150. A paper envelope marked CENCO holds a 2-gram timing weight.
a is clock in wooden case
b is pendulum
c is clock weight
d is winding key
e are timing weights in wooden tray plus 2 g scale weight by Central Scientific Company in paper envelope
The clock timing weights are brass and held in an oak tray. The underside of the tray is marked in pencil: 24". There is a lead disk marked 150. A paper envelope marked CENCO holds a 2-gram timing weight.
Signedon paper envelope for scale weight: CENTRAL SCIENTIFIC COMPANY / LABORATORY [CENCO logo] SUPPLIES / Aparatus Chemicals / NEW YORK -- BOSTON -- CHICAGO -- TORONTO -- LOS ANGELES
Inscribedon underside of wooden tray: 24"
ProvenanceOak Ridge Observatory, Harvard, MA., Building 10; transferred to CHSI, 2016 (weights) and 2023 (movement and case).
Historical AttributesThis regulator by Seth Thomas Clock Company was located in the observatory building of the Metcalf 16-inch astrograph at Oak Ridge Observatory in Harvard, MA. It likely was also used with the telescope when it was in operation in Cambridge, MA in 1909 before being moved to Oak Ridge Observatory in 1932.
The underside of the tray for the timing weights is marked in pencil: 24". This suggests that the timing weights were originally associated with a clock used with one of Harvard's 24-inch telescopes, which included two Alvan Clark & Sons reflecting telescopes purchased in 1902.
Seth Thomas Clock Company
Date: circa 1905
Accessories: winding key, timing weights, signaling sensor
Object number: 2016-1-0053a
Seth Thomas Clock Company
Date: circa 1905
Accessories: winding key, timing weights, signaling sensor
Object number: 2016-1-0053
William Hamilton Shortt
Date: circa 1929
Object number: 1998-1-0187a
Synchronome Company, Ltd
Date: circa 1929
Object number: 1998-1-0187b
Seth Thomas Clock Company
Date: circa 1920
Object number: 2016-1-0052
See also/See also
