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US Patent: 1,852,760
Cylinder Gauge
Patentee:
James G. Sisson - Athol, MA

USPTO Classifications:
33/419, 33/534, 33/535

Tool Categories:
metalworking tools : machinist tools : measuring tools

Assignees:
L. S. Starrett Co. - Athol, MA

Manufacturer:
L. S. Starrett Co. - Athol, MA

Witnesses:
none listed

Patent Dates:
Applied: Nov. 04, 1927
Granted: Apr. 05, 1932

Patent Pictures: [ 1 | 2 | 3 ]
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L. S. Starrett Co.-125th Anniversary
History of the L. S. Starrett Co.
Biography of L. S. Starrett
Description:
Ellis Spear Jr. - patent attorney

In utilizing this instrument it is placed in the cylinder bore with its flat lower face bearing on the face F of the cylinder block. It is positioned so that the blade 1 lies in one of the diametric planes of the cylinder axis and the face piece 2 is then pushed so as to bring the straight edge of the blade against the cylinder wall until it has established a definite bearing. In the case shown this bearing will be along the entire side of the cylinder and at a slight angle to the axis thereof as explained in connection with Fig. 1a. In case the wear has been in the lower regions of the cylinder the blade will establish contact only in the angular portion.

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