US Patent: 2,741,847
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| Micrometer Gauge Having Means to Prevent Lost Motion
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Patentee:
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| Albert G. Hagstrom (exact or similar names) - Newington, Hartford County, CT |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
Oct. 15, 1954 |
| Granted: |
Apr. 17, 1956 |
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Patent Pictures:
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Joel Havens
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Description: |
| This patent was an improvement on patent #2,267,332.
Abstract:
The general object of the invention is to provide a micrometer gauge of the type stated having means for preventing lost motion at the motion multiplying lever, either in the gauge as first manufactured or after long use and possible wear of parts.
Claim:
In a micrometer gauge having a rotatable spindle and having first and second concentric sleeves partly surrounding the spindle and rotatable relatively thereto which second sleeve partly surrounds the first sleeve and has an outer end wall, a flange on the outer end of the first sleeve and provided with a notch and with a yieldable resilient portion at one edge of said notch, a transversely extending lever pivoted near one end to the spindle for movement about a longitudinal axis and serving to transmit rotation to a Limited extent from the second sleeve to the first sleeve :with the second sleeve rotating at a greater rate, said lever including a finger at the last said end thereof entered in the notch in said flange and having a width slightly greater than the initial width of the notch so that the resilient flange portion always applies pressure to the finger to prevent lost motion at type finger during pivotal movement of the lever and during relative rotation of the sleeves and said lever also including resilient bifurcations which define a lengthwise slot therein near the opposite end thereof, and a longitudinal pin on the end wall of the second sleeve entered in the slot in the lever and having a diameter slightly greater than the initial width of the slot so that the said resilient bifurcations always apply pressure to the pin to prevent lost motion at the pin during pivotal movement of the lever and during relative rotation of the sleeves. |
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