Recorders – Markers and/or driving means therefor – Stylus feature
Patent
1975-10-01
1977-03-29
Hartary, Joseph W.
Recorders
Markers and/or driving means therefor
Stylus feature
74 99R, 74567, G01D 504
Patent
active
040152707
ABSTRACT:
A pivoted pointer or stylus is mounted for actuation by reciprocatory plunger action. It has a stop associated with the plunger to hold the stylus locked in a neutral position until the plunger is actuated. The stylus has a cam action surface for cooperating with another part of the stop after the stop has moved to release the stylus. The cam action causes pivotal movement of the stylus to indicate an event.
REFERENCES:
patent: 559394 (1896-05-01), Marix
patent: 2346802 (1944-04-01), Walker
patent: 2515658 (1950-07-01), Merkel
Barnes, Jr. Vernon M.
Flournoy Norman E.
Horton, Jr. Eugene B.
Dearborn Henry C.
Hartary Joseph W.
Ries C. G.
Texaco Inc.
Whaley T. H.
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