Motion amplifier for condition responsive gauge instrument

Claim 2

A condition responsive gauge instrument comprising: (a) a condition responsive element for producing a single output motion in response to condition changes in a pressure source to which it is connected; (b) axis means defining a pivot axis; and (c) a two stage motion amplifier means operably supported on said condition responsive element for floating conjoint movement therewith; said motion amplifier means cooperatively interacting in its motion path with said axis means to produce an output motion correlated to the condition change motion incurred by said condition responsive element; (d) said amplifier means being adapted to receive its input from the produced motion of said condition responsive element whereby the first of said stages produces a multiplied output of the input received from said condition responsive element and the second stage produces a multiplied output of an input received from the output of the first stage.

Claim 3

A gauge instrument according to claim 1 including calibration means enabling calibrating the operation of said amplifier means relative to the operative motion of said condition responsive element.

Claim 4

A gauge instrument according to claim 1 in which said condition responsive element comprises a Bourdon tube.

Claim 5

A condition responsive gauge instrument comprising in combination: (a) a condition responsive element for producing motion in response to condition changes to which it is sensitive; (b) axis means defining a stationary pivot axis; and (c) motion amplifier means operably supported on said condition responsive element for floating conjoint movement therewith; said motion amplifier means cooperatively interacting in its motion path with said axis means and effecting at least two stage amplification in producing an output motion correlated to the condition change motion incurred by said condition responsive element and including: (1) a support frame secured to said condition responsive element; (2) pivot means hinge connected to said support frame to operably interact with said axis means, said pivot means being adapted at its connection for hinged motion relative thereto to incur pivotal motion about said axis means in effecting one of said amplification stages; and (3) a rotatable output shaft mounted on said support frame to be rotatably driven by said pivot means in response to its incurred pivotal motion about said axis means in effecting another of said amplification stages.

Claim 6

A condition responsive gauge instrument comprising in combination: (a) a condition responsive element for producing motion in response to condition changes to which it is sensitive; (b) axis means defining a stationary pivot axis; and (c) motion amplifier means operably supported on said condition responsive element for floating conjoint movement therewith; said motion amplifier means cooperatively interacting in its motion path with said axis means and effecting at least two stage amplification in producing an output motion correlated to the condition change motion incurred by said condition responsive element and including: (1) a support frame secured to said condition responsive element; (2) pivot means hinge connected to said support frame to operably interact with said axis means, said pivot means being adapted at its connection for hinged motion relative thereto to incur pivotal motion about said axis means in effecting one of said amplification stages; and (3) a rotatable output shaft mounted on said support frame to be rotatably driven by said pivot means in response to its incurred pivotal motion about said axis means in effecting another of said amplification stages.

Claim 7

A gauge instrument according to claim 4 including calibration means enabling calibrating the operation of said amplifier means relative to the operative motion of said condition responsive element.

Claim 8

A gauge instrument according to claim 2 in which said axis means comprises an actuator remotely anchored and connected to said pivot means at a predetermined location displaced from said hinge connection.

Claim 9

A gauge instrument according to claim 6 in which said calibration means includes means to presettably adjust the ratio of the amplifier means output motion relative to the operative motion of said condition responsive element.

Claim 10

A gauge instrument according to claim 7 in which said calibration means also includes means to presettably adjust said amplifier means to effect the zero position setting of said condition responsive element.

Claim 11

A gauge instrument according to claim 8 in which said ratio adjustment means and said zero position adjustment means are operable mutually independent of each other.

Claim 12

A condition responsive gauge instrument comprising in combination: (a) a first Bourdon tube for producing a first motion in response to condition changes to which it is sensitive; (b) a second Bourdon tube for producing a second motion in response to condition changes to which it is sensitive; (c) axis means defining a pivot axis and supported extending from a support position on said first Bourdon tube, said axis means being movable conjointly with the movement of said first Bourdon tube for changing the location of said defined pivot axis in correlation therewith; and (d) a two stage motion amplifier means operably supported on said second Bourdon tube for floating conjoint movement therewith; said motion amplifier means cooperatively interacting in its motion path with said axis means to produce an output motion correlated to the combined condition change motions incurred by both of said Bourdon tubes, and including: (1) a support frame secured to said second Bourdon tube; (2) pivot means hinge connected to said support frame to operably interact with sais axis means, said pivot means being adapted at its connection for hinged motion relative thereto to incur pivotal motion about said axis means; and (3) a rotatable output shaft mounted on said support frame to be rotatably driven by said pivot means in response to its incurred pivotal motion about said axis means.

Claim 13

A condition responsive gauge instrument comprising in combination: (a) a first Bourdon tube for producing a first motion in response to condition changes to which it is sensitive; (b) a second Bourdon tube for producing a second motion in response to condition changes to which it is sensitive; (c) axis means defining a pivot axis and supported extending from a support position on said first Bourdon tube, said axis means being movable conjointly with the movement of said first Bourdon tube for changing the location of said defined pivot axis in correlation therewith; and (d) a two stage motion amplifier means operably supported on said second Bourdon tube for floating conjoint movement therewith; said motion amplifier means cooperatively interacting in its motion path with said axis means to produce an output motion correlated to the combined condition change motions incurred by both of said Bourdon tubes, and including: (1) a support frame secured to said second Bourdon tube; (2) pivot means hinge connected to said support frame to operably interact with sais axis means, said pivot means being adapted at its connection for hinged motion relative thereto to incur pivotal motion about said axis means; and (3) a rotatable output shaft mounted on said support frame to be rotatably driven by said pivot means in response to its incurred pivotal motion about said axis means.

Claim 14

A gauge instrument according to claim 4 in which said axis means comprises an actuator remotely anchored and connected to said pivot means at a predetermined location displaced from said hinge connection.

Claim 15

A gauge instrument according to claim 11 in which said actuator comprises an elongated element relatively rigid in a longitudinal direction and relatively flexible in a lateral direction.

Claim 16

A gauge instrument according to claim 12 in which the drive output of said pivot means comprises a first gear element and said output shaft supports a second gear element secured thereto and operatively meshing with said first gear element.

Claim 17

A gauge instrument according to claim 13 including a dial member for cooperatively affording a visual readout of condition values to which the instrument is operatively responding and said output shaft is axially located substantially axially coincident with the optical axis of said dial.

Claim 18

A gauge instrument according to claim 14 including a pointer secured to said output shaft visually opposite said dial for angular displacement by said shaft relative thereto.

Claim 19

A gauge instrument according to claim 12 including calibration means enabling calibrating the operation of said amplifier means relative to the operative motion of said condition responsive element.

Claim 20

A gauge instrument according to claim 16 in which said calibration means includes means to presettably adjust the ratio of the amplifier means output motion relative to the operative motion of said condition responsive element.

Claim 21

A gauge instrument according to claim 17 in which said calibration means also includes means to presettably adjust said amplifier means to effect the zero position setting of said condition responsive element.

Claim 22

A gauge instrument according to claim 18 in which said ratio adjustment means and said zero position adjustment means are operably settable mutually independent of each other.

Claim 23

A gauge instrument according to claim 18 in which said zero position adjustment means comprises means for shifting said defined pivot axis relative to the output drive of said pivot means in a plane generally parallel thereto.

Claim 24

A gauge instrument according to claim 17 in which said ratio adjustment means comprises means engaging said actuator at a location intermediate its length and operatively adapted to effect displacement thereof for laterally shifting said defined pivot axis relative to the hinge axis connection of said pivot means.

Claim 25

A gauge instrument according to claim 4 in which said pivot means is weighted in an unbalanced relation about its hinge connection operatively urging a weighted turning moment thereabout.

Claim 26

A condition responsive gauge instrument comprising in combination: (a) a condition responsive element producing motion in response to condition changes to which it is sensitive; (b) axis means defining a pivot axis; (c) motion amplifier means operably supported on said condition responsive element for floating conjoint movement therewith; said motion amplifier means cooperatively interacting in its motion path with said axis means and effecting at least two stage amplification in producing an output motion correlated to the condition change motion incurred by said condition responsive element; and (d) temperature compensator means for effecting an operative relation between said condition responsive element and said amplifier means compensated in at least partial correlation to temperature differentials incurred by components of said instrument.

Claim 27

A condition responsive gauge instrument comprising in combination: (a) a condition responsive element producing motion in response to condition changes to which it is sensitive; (b) axis means defining a pivot axis; (c) motion amplifier means operably supported on said condition responsive element for floating conjoint movement therewith; said motion amplifier means cooperatively interacting in its motion path with said axis means and effecting at least two stage amplification in producing an output motion correlated to the condition change motion incurred by said condition responsive element; and (d) temperature compensator means for effecting an operative relation between said condition responsive element and said amplifier means compensated in at least partial correlation to temperature differentials incurred by components of said instrument.

Claim 28

A gauge instrument according to claim 22 in which said temperature compensator means and said condition responsive element are mutually connected to a common thermal source for thermally parallel sensitivity in response to temperature changes of said source.

Claim 29

A gauge instrument according to claim 23 in which said temperature compensator means comprises said axis means at least partially formed of temperature sensitive bi-metallic elements acting to relocate said defined pivot axis in response to temperature changes to which it is subjected.

Claim 30

A gauge instrument according to claim 24 in which said condition responsive element comprises a Bourdon tube and a pressure supply stem adapted for connection to a pressure source to which the instrument is to be responsive comprises said common thermal source.

Claim 31

A condition responsive gauge instrument comprising in combination: (a) a condition responsive element for producing motion in response to condition changes to which it is sensitive; (b) axis means comprising an anchored actuator defining a pivot axis; (c) motion amplifier means operably supported on said condition responsive element for floating conjoint movement therewith; said motion amplifier means cooperatively interacting in its motion path with said axis means and effecting at least two stage amplification in producing an output motion correlated to the condition change motion incurred by said condition responsive element and including: (1) a support frame secured to said condition responsive element; (2) pivot means hinge connected to said support frame and pivottally connected to said actuator at a predetermined location displaced from said hinge connection to operably interact therewith, and pivot means being adapted at its connection for hinged motion relative thereto to incur pivotal motion about said pivot axis in effecting one of said amplification stages; (3) a rotatable output shaft mounted on said support frame to be rotatably driven by said pivot means in response to its incurred pivotal motion about said pivot axis in effecting another of said amplification stages; and (4) calibration means enabling calibrating the operation of said amplifier means relative to the operative motion of said condition responsive element, said calibration means including means to presettably adjust the ratio of the amplifier means output motion relative to the operative motion of said condition responsive element and means to presettably adjust said amplifier means to effect the zero position setting of said condition responsive element, said ratio adjustment means and said zero position adjustment means being operable mutually independent of each other; and (d) temperature compensator means for effecting an operative relation between said condition responsive element and said amplifier means compensated in at least partial correlation to temperature differentials incurred by components of said instrument.

Claim 32

A condition responsive gauge instrument comprising in combination: (a) a condition responsive element for producing motion in response to condition changes to which it is sensitive; (b) axis means comprising an anchored actuator defining a pivot axis; (c) motion amplifier means operably supported on said condition responsive element for floating conjoint movement therewith; said motion amplifier means cooperatively interacting in its motion path with said axis means and effecting at least two stage amplification in producing an output motion correlated to the condition change motion incurred by said condition responsive element and including: (1) a support frame secured to said condition responsive element; (2) pivot means hinge connected to said support frame and pivottally connected to said actuator at a predetermined location displaced from said hinge connection to operably interact therewith, and pivot means being adapted at its connection for hinged motion relative thereto to incur pivotal motion about said pivot axis in effecting one of said amplification stages; (3) a rotatable output shaft mounted on said support frame to be rotatably driven by said pivot means in response to its incurred pivotal motion about said pivot axis in effecting another of said amplification stages; and (4) calibration means enabling calibrating the operation of said amplifier means relative to the operative motion of said condition responsive element, said calibration means including means to presettably adjust the ratio of the amplifier means output motion relative to the operative motion of said condition responsive element and means to presettably adjust said amplifier means to effect the zero position setting of said condition responsive element, said ratio adjustment means and said zero position adjustment means being operable mutually independent of each other; and (d) temperature compensator means for effecting an operative relation between said condition responsive element and said amplifier means compensated in at least partial correlation to temperature differentials incurred by components of said instrument.

Claim 33

A gauge instrument according to claim 27 in which said temperature compensator means and said condition responsive element are mutually connected to a common thermal source for thermally parallel sensitivity in response to temperature changes of said source.

Claim 34

A gauge instrument according to claim 28 in which said temperature compensator means comprises said means at least partially formed of temperature sensitive bi-metallic elements acting to relocate said defined pivot axis in response to temperature changes to which it is subjected.

Claim 35

A gauge instrument according to claim 29 in which said condition responsive element comprises a Bourdon tube and a pressure supply stem adapted for connection to a pressure source to which the instrument is to be responsive comprises said common thermal source.

Claim 36

A motion amplifier for a gauge instrument having a motion producing condition responsive element, said amplifier comprising in combination; (a) a support frame; (b) output means affording at least two stage motion amplification of said condition responsive element, said output means being hinge mounted on said support frame for hinge motion relative thereof and including means to receive an actuator defining a stationary pivot axis displaced from the axis of said hinge mount to cooperatively effect a pivotal output motion thereabout in response to its hinge motion incurred relative to said frame; and (c) mounting means adapted for mounting said support frame and said output means as a unit operably supported on the condition responsive element for floating conjoint motion therewith to produce the hinge and pivotal motion of said output means.

Claim 37

A motion amplifier for a gauge instrument having a motion producing condition responsive element, said amplifier comprising in combination; (a) a support frame; (b) output means affording at least two stage motion amplification of said condition responsive element, said output means being hinge mounted on said support frame for hinge motion relative thereof and including means to receive an actuator defining a stationary pivot axis displaced from the axis of said hinge mount to cooperatively effect a pivotal output motion thereabout in response to its hinge motion incurred relative to said frame; and (c) mounting means adapted for mounting said support frame and said output means as a unit operably supported on the condition responsive element for floating conjoint motion therewith to produce the hinge and pivotal motion of said output means.

Claim 38

A motion amplifier according to claim 31 in which the received actuator is remotely anchored.

Claim 39

A motion amplifier for a gauge instrument having a motion producing condition responsive element, said amplifier comprising in combination: (a) a support frame; (b) pivot means hinge connected to said support frame and adapted at its connection for hinged motion relative thereto; said pivot means including means to receive a remotely supported actuator connected thereto at a predetermined location displaced from said hinge connection to define a stationary pivot axis thereat; (c) output means mounted on said support frame to be operably driven by pivotting of said pivot means about said defined pivot axis in response to hinged motion thereof; and (d) mounting means secured to said frame and adapted for mounting said support frame, said pivot means and said output means as a unit operably supported on a movable section of the condition responsive element for floating conjoint movement therewith and affording at least two stage amplified output motion in response to condition changes to which the element is sensitive.

Claim 40

A motion amplifier for a gauge instrument having a motion producing condition responsive element, said amplifier comprising in combination: (a) a support frame; (b) pivot means hinge connected to said support frame and adapted at its connection for hinged motion relative thereto; said pivot means including means to receive a remotely supported actuator connected thereto at a predetermined location displaced from said hinge connection to define a stationary pivot axis thereat; (c) output means mounted on said support frame to be operably driven by pivotting of said pivot means about said defined pivot axis in response to hinged motion thereof; and (d) mounting means secured to said frame and adapted for mounting said support frame, said pivot means and said output means as a unit operably supported on a movable section of the condition responsive element for floating conjoint movement therewith and affording at least two stage amplified output motion in response to condition changes to which the element is sensitive.

Claim 41

A motion amplifier according to claim 33 in which said output means comprises a rotatable shaft.

Claim 42

A motion amplifier according to claim 33 including calibration means for enabling calibrated operation of the amplifier relative to operation of the condition responsive element on which it is to be mounted.

Claim 43

A motion amplifier according to claim 35 in which said calibration means includes means to relatively shift said predetermined location of said defined pivot axis at which to receive the actuator.

Claim 44

A motion amplifier according to claim 33 in which said pivot means is weighted in an unbalanced relation about its hinge connection operatively urging a weighted turning moment thereabout.

Claim 45

In a motion amplifier for a gauge instrument having a displacement producing condition responsive element in which said amplifier includes input means adapted for connection to said condition responsive element for operable displacement therewith and output means operably coacting with said input means for effecting an output displacement correlated to the input displacement incurred by said input means, the improvement in said amplifier comprising in combination: (a) an integral support frame of substantially unitary composition and generally U-shaped in transverse section including generally parallel side legs laterally bridged together at their common ends and relatively spreadable at their free ends; and (b) first and second spaced apart rotatable shafts each transversely extending between said side legs and supported in a snap-in relation directly journalled therein; (c) one of said shafts providing rotatable support for said input means and the other of said shafts providing rotatable support for said output means.

Claim 46

In a motion amplifier for a gauge instrument having a displacement producing condition responsive element in which said amplifier includes input means adapted for connection to said condition responsive element for operable displacement therewith and output means operably coacting with said input means for effecting an output displacement correlated to the input displacement incurred by said input means, the improvement in said amplifier comprising in combination: (a) an integral support frame of substantially unitary composition and generally U-shaped in transverse section including generally parallel side legs laterally bridged together at their common ends and relatively spreadable at their free ends; and (b) first and second spaced apart rotatable shafts each transversely extending between said side legs and supported in a snap-in relation directly journalled therein; (c) one of said shafts providing rotatable support for said input means and the other of said shafts providing rotatable support for said output means.

Claim 47

The improvement according to claim 38 in which said shafts are retained in their journalled relation by the lateral yield properties of said frame legs.

Claim 48

The improvement according to claim 39 in which said amplifier frame is adapted to be supported in said gauge instrument on a stationary portion thereof.

Claim 49

The improvement according to claim 40 in which said input means includes means to receive an actuator supported from the displacement producing condition responsive element of said gauge instrument for defining a pivot axis therein displaced from the input means support shaft.

Claim 50

The improvement according to claim 41 in which there is included adjustable support means to displace said amplifier relative to the defined pivot axis for effecting span adjustment of said amplifier.

Claim 51

The improvement according to claim 39 in which said amplifier frame is adapted to be supported in said gauge instrument on the displacement producing condition responsive element thereof.

Claim 52

The improvement according to claim 43 in which said input means includes means to receive an actuator supported from a stationary portion of said gauge instrument for defining a pivot axis therein displaced from the input means support shaft.

Claim 53

A condition responsive gauge instrument comprising in combination: (a) a condition responsive element for producing motion in response to condition changes to which it is sensitive; (b) elongated axis means extending stationary between first and second ends with the first of said ends being fixed to a stationary portion of the instrument; and (c) motion amplifier means operably supported on said condition responsive element for floating conjoint movement therewith and having an aperture for receiving the second end of said axis means; (d) said second end of said axis means being stationary in said aperture and cooperatively interacting with said motion amplifier means in its motion path for said amplifier means to effect angular amplification in producing an output motion correlated to the condition change motion incurred by said condition responsive element.

Claim 54

A condition responsive gauge instrument comprising in combination: (a) a condition responsive element for producing motion in response to condition changes to which it is sensitive; (b) elongated axis means extending stationary between first and second ends with the first of said ends being fixed to a stationary portion of the instrument; and (c) motion amplifier means operably supported on said condition responsive element for floating conjoint movement therewith and having an aperture for receiving the second end of said axis means; (d) said second end of said axis means being stationary in said aperture and cooperatively interacting with said motion amplifier means in its motion path for said amplifier means to effect angular amplification in producing an output motion correlated to the condition change motion incurred by said condition responsive element.

Claim 55

A gauge instrument according to claim 45 in which said motion amplifier means includes: (a) a support frame secured to said condition responsive element; and (b) output means hinge mounted onto said support frame and adapted for hinged motion relative thereto, said output means being operably engaged with said axis means to cooperatively effect a pivotal output motion thereabout in response to hinged motion incurred relative to said frame.

Claim 56

A condition responsive gauge instrument comprising in combination: (a) a condition responsive element for producing motion in response to condition changes to which it is sensitive; (b) axis means defining a stationary pivot axis; and (c) motion amplifier means operably supported on said condition responsive element for floating conjoint movement therewith; said motion amplifier means cooperatively interacting in its motion path with said axis means and effecting angular amplification in producing an output motion correlated to the condition change motion incurred by said condition responsive element and including: (1) a support frame secured to said condition responsive element; (2) pivot means hinge connected to said support frame to operably interact with said axis means, said pivot means being adapted at its connection for hinged motion relative thereto to incur pivotal motion about said axis means; and (3) a rotatable output shaft mounted on said support frame to be rotatably driven by said pivot means in response to its incurred pivotal motion about said axis means.

Claim 57

A condition responsive gauge instrument comprising in combination: (a) a condition responsive element for producing motion in response to condition changes to which it is sensitive; (b) axis means defining a stationary pivot axis; and (c) motion amplifier means operably supported on said condition responsive element for floating conjoint movement therewith; said motion amplifier means cooperatively interacting in its motion path with said axis means and effecting angular amplification in producing an output motion correlated to the condition change motion incurred by said condition responsive element and including: (1) a support frame secured to said condition responsive element; (2) pivot means hinge connected to said support frame to operably interact with said axis means, said pivot means being adapted at its connection for hinged motion relative thereto to incur pivotal motion about said axis means; and (3) a rotatable output shaft mounted on said support frame to be rotatably driven by said pivot means in response to its incurred pivotal motion about said axis means.

Claim 58

A gauge instrument according to claim 47 in which said axis means comprises an actuator remotely anchored and connected to said pivot means at a predetermined location displaced from said hinge connection.

Claim 59

A condition responsive gauge instrument comprising in combination: (a) a condition responsive element for producing motion in response to condition changes to which it is sensitive; (b) axis means defining a stationary pivot axis; and (c) motion amplifier means operably supported on said condition responsive element for floating conjoint movement therewith; said motion amplifier means cooperatively interacting in its motion path with said axis means and effecting at least two stage amplification in producing an output motion correlated to the condition change motion incurred by said condition responsive element and including: (1) a support frame secured to said condition responsive element; and (2) output means hinge mounted onto said support frame and adapted for hinged motion relative thereto, said output means being operably engaged with said axis means to cooperatively effect a pivotal output motion thereabout in response to hinged motion incurred relative to said frame.

Claim 60

A condition responsive gauge instrument comprising in combination: (a) a condition responsive element for producing motion in response to condition changes to which it is sensitive; (b) axis means defining a stationary pivot axis; and (c) motion amplifier means operably supported on said condition responsive element for floating conjoint movement therewith; said motion amplifier means cooperatively interacting in its motion path with said axis means and effecting at least two stage amplification in producing an output motion correlated to the condition change motion incurred by said condition responsive element and including: (1) a support frame secured to said condition responsive element; and (2) output means hinge mounted onto said support frame and adapted for hinged motion relative thereto, said output means being operably engaged with said axis means to cooperatively effect a pivotal output motion thereabout in response to hinged motion incurred relative to said frame.

Claim 61

A gauge instrument according to claim 49 including calibration means enabling calibrating the operation of said amplifier means relative to the operative motion of said condition responsive element.

Claim 62

A gauge instrument according to claim 16 or 50 in which said calibration means includes span adjustment means operatively settable from a stationary location on the instrument.

Claim 63

A gauge instrument according to claim 51 in which said calibration means also includes zero adjustment means operatively settable from a stationary location on the instrument.

Claim 64

A condition responsive gauge instrument comprising in combination: (a) a condition responsive element for producing motion in response to condition changes to which it is sensitive; (b) elongated axis means extending stationary between first and second ends with the first of said ends being fixed to a stationary portion of the instrument; and (c) motion amplifier means operably supported on said condition responsive element for floating conjoint movement therewith and having an aperture for receiving the second end of said axis means; (d) said second end of said axis means being stationary in said aperture and cooperatively interacting with said motion amplifier means in its motion path for said amplifier means to effect at least two stage amplification in producing an output motion correlated to the condition change motion incurred by said condition responsive element.

Claim 65

A condition responsive gauge instrument comprising in combination: (a) a condition responsive element for producing motion in response to condition changes to which it is sensitive; (b) elongated axis means extending stationary between first and second ends with the first of said ends being fixed to a stationary portion of the instrument; and (c) motion amplifier means operably supported on said condition responsive element for floating conjoint movement therewith and having an aperture for receiving the second end of said axis means; (d) said second end of said axis means being stationary in said aperture and cooperatively interacting with said motion amplifier means in its motion path for said amplifier means to effect at least two stage amplification in producing an output motion correlated to the condition change motion incurred by said condition responsive element.

Claim 66

A condition responsive gauge instrument comprising in combination: (a) a condition responsive element for producing motion in response to condition changes to which it is sensitive; (b) elongated axis means extending stationary between first and second ends with the first of said ends being fixed to a stationary portion of the instrument; and (c) motion amplifier means operably supported on said condition responsive element for floating conjoint movement therewith and having an aperture for receiving the second end of said axis means; (d) said second end of said axis means being stationary in said aperture and cooperatively interacting with said motion amplifier means in its motion path for said amplifier means to produce an output motion correlated to the condition change motion incurred by said condition responsive element.

Claim 67

A condition responsive gauge instrument comprising in combination: (a) a condition responsive element for producing motion in response to condition changes to which it is sensitive; (b) elongated axis means extending stationary between first and second ends with the first of said ends being fixed to a stationary portion of the instrument; and (c) motion amplifier means operably supported on said condition responsive element for floating conjoint movement therewith and having an aperture for receiving the second end of said axis means; (d) said second end of said axis means being stationary in said aperture and cooperatively interacting with said motion amplifier means in its motion path for said amplifier means to produce an output motion correlated to the condition change motion incurred by said condition responsive element.