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US Patent: 305,337
Micrometer
Patentee:
Charles H. Russom - Springfield, IL

USPTO Classifications:
33/709

Tool Categories:
metalworking tools : machinist tools : measuring tools : micrometers

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
Jacob Brunn, Jr.
William A. Gabriel

Patent Dates:
Applied: Jun. 05, 1884
Granted: Sep. 16, 1884

Patent Pictures:
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Description:
Anderson & Smith - patent attorneys

Having thus fully described my invention, what I claim as new, and desire to secure by Letters Patent, is

1. The combination, in a gage for planed or other flat work, of the base-plate A, provided with the upright a, graduated to any proper unit of measure, with the carrier C, having properly attached the gage-point holder F, provided with proper means to indicate any desired division of the unit of measure of the upright a,substantially as specified.

2. In a gage for flat work, the combination, with the base-plate A, provided with the upright a, graduated by the grooves a', of the carrier C, having attached the proper holder, F, for the gage-point, and the spring D, provided with the detent A, which enters an opening in said carrier and engages any one of the grooves a' a'of the upright a, substantially as specified.

3. In a gage, the combination, with the properly graduated upright a and the carrier C, provided with the graduated tube, of the gage-marker K, provided with the point J, the gage-point carrier F, composed of the micrometer screw G and the tubular portion H, having its lower edge beveled and graduated to any desired number of equal parts, substantially as specified.

4. In a gage, the combination of the baseplate A, provided with the properly graduated upright a; and the carrier C, provided with the properly-graduated tube ,with the gage point holder F and gage point i, substantially

as specified.

5. In a gage, the combination, with the properly-graduated upright a and the carrier 0, So provided with the arms c' c'2, of the rod E, having the pointed lower end, e'., and the gage-point holder F, having on its upper end the pointer h3, substantially as specified.

6. In a gage, the combination, with the carrier C, provided with the arms c' and c'2 and tube c5, of the rod E, having the pointed upper and lower ends, and the part F, composed of the micrometer-screw G and tubular portion H, and having upper and lower pointed ends

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