Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
321 words
Single handle control mechanism for a ship''s engine having a reversing gear and throttle means comprising, a handle rotatable around a first pivot to either side of a neutral position, a lever coupled to said gear and pivoted on a fixed second pivot not coinciding with said first pivot, said first pivot being mounted on said lever, said lever moving about the second pivot in a direction corresponding with the direction of movement of said handle in a first stroke range on either side of the neutral position, said handle being adapted for moving a throttle actuating means in second stroke ranges at either side of said first range irrespective of the direction of movement of said handle, said handle extending toward said second pivot and being provided with a guiding extension, guiding means having first arcuate surfaces, the center of curvature of which coincides with the center of the junction between the handle and said extension when said handle is in the neutral position and is aligned with or slightly displaced from the second pivot, said extension engaging said first surfaces in the first stroke range for maintaining said junction stationary relative to said second pivot, said guiding means including second arcuate surfaces comprising two parts each joining the first surfaces at opposite ends of the latter and being circular arcs, the center of curvature of which coincides with the position of the first pivot in the position of the lever at the corresponding end of the first range, stop means for stopping the lever at the ends of the first stroke range of the handle, said guiding extension of the handle after leaving the first arcuate surfaces following the corresponding part of the second surfaces to allow the handle to rotate around the first pivot while presenting return movement of the lever, and throttle actuating means connected to the handle and actuated thereby only in the second stroke range.
Claim 2
Dependent Claim
321 words
Single handle control mechanism for a ship''s engine having a reversing gear and throttle means comprising, a handle rotatable around a first pivot to either side of a neutral position, a lever coupled to said gear and pivoted on a fixed second pivot not coinciding with said first pivot, said first pivot being mounted on said lever, said lever moving about the second pivot in a direction corresponding with the direction of movement of said handle in a first stroke range on either side of the neutral position, said handle being adapted for moving a throttle actuating means in second stroke ranges at either side of said first range irrespective of the direction of movement of said handle, said handle extending toward said second pivot and being provided with a guiding extension, guiding means having first arcuate surfaces, the center of curvature of which coincides with the center of the junction between the handle and said extension when said handle is in the neutral position and is aligned with or slightly displaced from the second pivot, said extension engaging said first surfaces in the first stroke range for maintaining said junction stationary relative to said second pivot, said guiding means including second arcuate surfaces comprising two parts each joining the first surfaces at opposite ends of the latter and being circular arcs, the center of curvature of which coincides with the position of the first pivot in the position of the lever at the corresponding end of the first range, stop means for stopping the lever at the ends of the first stroke range of the handle, said guiding extension of the handle after leaving the first arcuate surfaces following the corresponding part of the second surfaces to allow the handle to rotate around the first pivot while presenting return movement of the lever, and throttle actuating means connected to the handle and actuated thereby only in the second stroke range.
Claim 3
Dependent Claim
113 words
The mechanism according to claim 1 in which the guiding means is part of housing means supporting the second pivot, the guiding extension extending perpendicularly to the handle and the longitudinal axis of the handle, said first arcuate surfaces being formed by two circular ridges symmetrically positioned in respect of the longitudinal axis of the handle when it is in the neutral position, said second surfaces being two further circular ridges each joining one of the first circular ridges and being symmetrically positioned in respect of the longitudinal axis of the handle when it is in the neutral position, and the throttle actuating means being connected to the midpoint of said guiding extension.
Claim 4
Dependent Claim
99 words
The mechanism of claim 1 in which the guiding extension is substantially coplanar with the handle and is provided at its free extremity with a guiding pin or roller, the guiding means being part of housing means supporting the second pivot, the first arcuate surfaces are formed by the concentric edges of an arcuate slot in said guiding means, the second arcuate surfaces being formed by concentric edges of two arcuate slots in said guiding means joining the first slot at either end, and the throttle actuating means being connected to the junction between the handle and the extension.
Claim 5
Dependent Claim
193 words
The mechanism according to claim 1 in which the guiding means is part of housing means supporting the second pivot, the second pivot beIng formed by a rotatable shaft on which the lever is keyed, said shaft being coupled with the reversing gear, a hollow shaft surrounding said first shaft, a pinion mounted on the hollow shaft, a toothed segment engaging the pinion and mounted on a third pivot which is attached to said lever and is located between the first pivot and said shaft, said segment being connected with the handle by means of a pin and slot assembly in the handle, the guiding extension extending perpendicularly to the handle and the longitudinal axis of the handle, said first arcuate surfaces being formed by two circular ridges symmetrically positioned in respect of the longitudinal axis of the handle when it is in the neutral position, said second surfaces being two further circular ridges each joining one of the first circular ridges and being symmetrically positioned in respect of the longitudinal axis of the handle when it is in the neutral position, and the throttle actuating means being connected to said hollow shaft.
Claim 6
Dependent Claim
89 words
The mechanism according to claim 4 in which an intermediate member carries the first pivot and one part of the pin-slot assembly, a retractable coupling pin forming the connection between said intermediate member and the lever and guided in a slot in the guiding means, and said slot being provided with an enlarged opening in which a part of said pin is received when retracted in the neutral position of the handle in order to disengage the handle from the lever and locking said lever in the neutral position.
Claim 7
Dependent Claim
305 words
The mechanism according to claim 1 in which the second pivot is formed by a rotatable shaft on which the lever is keyed, said shaft being coupled with the reversing gear, a hollow shaft surrounding said first shaft, a pinion on the hollow shaft, a toothed segment mounted on a pivot attached to said lever and lying between the first pivot and said shaft and coupled with the handle by means of a pin and a slot arrangement, said segment engaging said pinion, the guiding extension extending perpendicularly to the handle and the longitudinal axis of the handle, said first arcuate surface being formed by two circular ridges symmetrically positioned in respect of the longitudinal axis of the handle when it is in the neutral position, said second surfaces being two further circular ridges each joining one of the first circular ridges and being symmetrically positioned in respect of the longitudinal axis of the handle when it is in the neutral position, said guiding means being rotatable in either direction from a neutral position and being carried by a second hollow shaft surrounding the first hollow shaft, said housing means being provided with a slidable locking means which may be operated from outside of said housing means and being provided with a locking part engaging a complementary part of the guiding means in the neutral position of the latter, said locking means being further provided with a locking recess complementary to the first pivot so that when not operated the locking part locks the guiding means in its neutral position and when operated said guiding means is free to rotate around said shaft and the first pivot is locked in the neutral position with the handle then being freely rotatable around said first pivot, the throttle actuating means being connected to the first hollow shaft.
Claim 8
Dependent Claim
262 words
An engine control for operating a reversing gear and a throttle comprising an arm mounted on a fixed pivot for movement from a neutral position to a forward position on one side of the neutral position and to a reverse position on the other side of the neutral position, a pivot located on the arm remote from the fixed pivot, an operating lever pivoted on said remote pivot and having a throttle control portion extending towards the fixed pivot and a handle portion extending in the opposite direction, guide means operative to limit movement of the lever relative to the arm within the range of movement between said forward and reverse positions whereby the lever handle may be actuated to actuate the arm, means associated with said throttle control portion of the lever and operative to transmit motion to a throttle, the last two means being selected and located so minimal motion is transmitted to the throttle while the lever moves to actuate the arm between said positions, said guide means being inoperative to restrain movement of the lever relative to the arm as the lever is actuated into a throttle control range of movement beyond its position corresponding to either said forward or said reverse position of said arm, said lever pivoting around said remote pivot in said throttle control range of movement and said motion transmitting means being operative in that range to transmit motion, and means operative to retain said arm in either its forward or reverse position when said lever is in its throttle control range of movement.
Claim 9
Dependent Claim
262 words
An engine control for operating a reversing gear and a throttle comprising an arm mounted on a fixed pivot for movement from a neutral position to a forward position on one side of the neutral position and to a reverse position on the other side of the neutral position, a pivot located on the arm remote from the fixed pivot, an operating lever pivoted on said remote pivot and having a throttle control portion extending towards the fixed pivot and a handle portion extending in the opposite direction, guide means operative to limit movement of the lever relative to the arm within the range of movement between said forward and reverse positions whereby the lever handle may be actuated to actuate the arm, means associated with said throttle control portion of the lever and operative to transmit motion to a throttle, the last two means being selected and located so minimal motion is transmitted to the throttle while the lever moves to actuate the arm between said positions, said guide means being inoperative to restrain movement of the lever relative to the arm as the lever is actuated into a throttle control range of movement beyond its position corresponding to either said forward or said reverse position of said arm, said lever pivoting around said remote pivot in said throttle control range of movement and said motion transmitting means being operative in that range to transmit motion, and means operative to retain said arm in either its forward or reverse position when said lever is in its throttle control range of movement.
Claim 10
Dependent Claim
208 words
An engine control for operating the reversing gear and the throttle, an arm connected to the reversing gear and pivoted on a fixed pivot and movable from neutral to a forward or a reverse position, a second pivot on the arm spaced from the fixed pivot, a handle pivoted on the second pivot with a handle portion projecting from the second pivot for manual actuation and another portion projecting into proximity with the fixed pivot, means restraining movement of the handle means relative to the arm throughout the range of movement of the arm between said positions whereby the handle and arm essentially move as a unit until the arm reaches either of said positions, and throttle control means operatively connected to a point on said another portion of the handle means, the movement of the handle means relative to the arm as permitted by the restraining means and the location of said point and the nature of the throttle control means being mechanically and geometrically related so no actuating movement is imparted to the throttle in said range, said restraining means being ineffective when the handle is moved beyond said range whereby movement is imparted to the throttle only after actuation of the reversing gear is completed.
Claim 11
Dependent Claim
208 words
An engine control for operating the reversing gear and the throttle, an arm connected to the reversing gear and pivoted on a fixed pivot and movable from neutral to a forward or a reverse position, a second pivot on the arm spaced from the fixed pivot, a handle pivoted on the second pivot with a handle portion projecting from the second pivot for manual actuation and another portion projecting into proximity with the fixed pivot, means restraining movement of the handle means relative to the arm throughout the range of movement of the arm between said positions whereby the handle and arm essentially move as a unit until the arm reaches either of said positions, and throttle control means operatively connected to a point on said another portion of the handle means, the movement of the handle means relative to the arm as permitted by the restraining means and the location of said point and the nature of the throttle control means being mechanically and geometrically related so no actuating movement is imparted to the throttle in said range, said restraining means being ineffective when the handle is moved beyond said range whereby movement is imparted to the throttle only after actuation of the reversing gear is completed.