US Patent: 184,524
|
| Gage
|
|
Patentee:
|
|
| Frederick D. Hazelton (exact or similar names) - Boston, Suffolk County, MA |
| Manufacturer: |
| Not known to have been produced |
|
|
Patent Dates:
|
| Applied: |
Aug. 14, 1876 |
| Granted: |
Nov. 21, 1876 |
|
Patent Pictures:
[
1 | 2 | 3
]
|
|
|
USPTO (New site tip)
Google Patents
Report data errors or omissions to steward
Joel Havens
Vintage Machinery entry for Stone & Hazelton
|
|
Description: |
| Abstract:
My invention relates to improvements in caliper-squares for the purpose of measuring external diameters of shafts or cylindrical pieces, as well as for the purpose of squaring and measuring rectangular, square, or similar pieces of work that commonly occur in machine-shops or other works; and my invention consists of an ordinary graduated scale, provided at each end with a T-headed or similar recess, into which is fitted a T-headed or correspondingly-shaped screw- bolt, that passes through the head of a leg projecting from the extreme end of the scale in a right angle. The head of the said leg is provided with side lips or projections, that form a groove between them, in which the extreme end of the scale fits, at the same time as they serve to prevent the T-head of the screw- bolt from turning around or getting detached from the scale when the thumbnut that is used on the T-headed bolt is screwed up firmly to secure the square leg to either end of the graduated scale. In combination with the firmly- secured square leg in one end of the scale is used a movable leg, projecting at a right angle from the scale, and made to slide easily in and out on the latter, and provided with a set-screw, by which the said movable leg can be secured in any desired position on the graduated scale.
|
|
){kind=link}
){kind=link}
){kind=link}