US Patent: 883,649 - Grinding-machine


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US Patent: 883,649

Grinding-machine

Patentee:

Abraham B. Landis (exact or similar names) - Waynesboro, PA

USPTO Classifications:

451/143, 451/541, 451/548

Tool Categories:

metalworking machines : grinders

Assignees:

None

Manufacturer:

Landis Tool Co. - Waynesboro, PA

Witnesses:

Alfred N. Russell

Merta Russell

Patent Dates:
Applied:	Sep. 23, 1906
Granted:	Mar. 31, 1908

Patent Pictures:

USPTO (New site tip)
Google Patents
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Vintage Machinery entry for Landis Tool Co.

Description:

"In the use of glass stoppers in bottles designed for containing liquids charged with gas, it is essential that the seat for the stoppers in the neck of the bottle shall be perfectly true and smooth and also that the stopper shall have a correspondingly smooth surface, perfectly true to fit therein, in order to prevent any leakage of the gas and consequent impairment of the liquid. The object of my said invention is, therefore, to provide machinery for the purpose of grinding the seat for the stopper in the neck of the bottle and also to grind the stopper so that it will fit perfectly in said seat."