Control point adjustment mechanism
AssigneeHoneywell Inc.
InventorFrederick D. Joesting
Life of this patent
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Abstract
An apparatus is disclosed for use in a control system having a control point adjustment and a throttling range adjustment, the apparatus having, for example, a first dial having a throttling range pointer attached thereto, a second dial having throttling range indicia and control point indicia thereon, a control point pointer for cooperating with the control point indicia, a shaft connecting the first dial to the control point adjustment and a locking screw for locking the first and second dials together so that the first and second dials rotate in unison for changing the control point of the system and for unlocking the first and second dials so that the first dial can be rotated to change the control point to compensate for any adjustments in the throttling range of the control system.
Claims8
In a condition control system for controlling a load in accordance with a sensed condition, said system having both throttling range adjustment means for adjusting the throttling range of the system and control point adjustment means for establishing a control point for said system, an apparatus for compensating for changes in control point upon adjustment of said throttling range adjustment means by adjusting the control point adjustment means accordingly, said apparatus comprising:
- first and second relatively adjustable means and support means, said first and second relatively adjustable means adjustable with respect to said support means, control point indicia affixed to one of said second relatively adjustable means and said base means and a control point pointer affixed to the other of said second relatively adjustable means and said base means, throttling range indicia affixed to one of said first and second relatively adjustable means and a throttling range pointer affixed to the other of said first and second relatively adjustable means, whereby said second relatively adjustable means may be adjusted until said control point pointer points to one of said control point indicia and said first relatively adjustable means may be adjusted until said throttling range pointer points to one of said throttling range indicia;
- shaft means connected to at least one of said first and second relatively adjustable means and to said control point adjustment means;
- and,
- locking means for locking said first and second relatively adjustable means together whereby, upon changes in throttling range, said locking means may be unlocked and said one of said first and second relatively adjustable means may be adjusted relative to the other of said first and second relatively adjustable means so that the throttling range pointer points to the new throttling range whereby said shaft means is moved to in turn adjust the control point adjustment means to compensate for changes in throttling range, and thereafter the locking means may lock the first and second relatively adjustable means together.
Dependencies are inferred from the claim text.