Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
250 words
A time stamping device comprising a housing within which is a timing motor, a series of time print wheels arranged next to one another so as to serially extend in a given direction, an operative driving connection between said timing motor and said print wheels, a carriage mounted for travel from one print wheel to the next in said given direction from a first position to one side of a first print wheel to a second position to the other side of the last print wheel, an impression roller carried by said carriage, resilient means operative on said roller to urge it into successive engagement with said wheels as said carriage moves from said first position to an impression position to said second position, whereby successive parts of a document inserted between said roller and said wheels are pressed successively against said wheels by said roller, means operatively connected to said carriage to cause travel thereof from said first to said second position, and means operatively connected to said carriage to cause it to move away from said wheels and to withdraw said roller from said wheels after said carriage reaches said second position and then return said carriage to said first position, said housing having a slot into which a document to be printed upon is adapted to be inserted and actuatable trigger means in said housing operatively connected to said means for causing carriage travel and effective to actuate the latter upon being actuatably engaged by said document.
Claim 2
Dependent Claim
250 words
A time stamping device comprising a housing within which is a timing motor, a series of time print wheels arranged next to one another so as to serially extend in a given direction, an operative driving connection between said timing motor and said print wheels, a carriage mounted for travel from one print wheel to the next in said given direction from a first position to one side of a first print wheel to a second position to the other side of the last print wheel, an impression roller carried by said carriage, resilient means operative on said roller to urge it into successive engagement with said wheels as said carriage moves from said first position to an impression position to said second position, whereby successive parts of a document inserted between said roller and said wheels are pressed successively against said wheels by said roller, means operatively connected to said carriage to cause travel thereof from said first to said second position, and means operatively connected to said carriage to cause it to move away from said wheels and to withdraw said roller from said wheels after said carriage reaches said second position and then return said carriage to said first position, said housing having a slot into which a document to be printed upon is adapted to be inserted and actuatable trigger means in said housing operatively connected to said means for causing carriage travel and effective to actuate the latter upon being actuatably engaged by said document.
Claim 3
Dependent Claim
77 words
A time stamping device as defined in claim 1, having a travel motor with reduction gearing and linkage means connected between said gearing and said carriage and effective to cause travel of the carriage through a cycle of travel from said first to said second position and back, said gearing and linkage means constituting essentially the sole driving instrumentality for said impression roller carried by said carriage, whereby said cycle is accomplished without hammer and/or solenoid noise.
Claim 4
Dependent Claim
117 words
A time stamping device as claimed in claim 2, in which there are rails on which said carriage rides during its movement from first to second position, the starting end of said rails sloping up toward said print wheels from said first position to lift the carriage and impression roller into operative engagement with said print wheels as the carriage is moved toward said second position, said rails being terminated beyond said impression position and in advance of said second position to afford movement of the carriage away from the print wheels, and means mounting said rails on said housing and effective to permit return movement of the carriage back to said first position beneath the rails.
Claim 5
Dependent Claim
92 words
In a time stamping device as defined in claim 3 an electrical switch, operating means operatively connected between said trigger means and said switch and effective to close said switch when the trigger is engaged by said document to initiate the printing operation, latch means, connecting means between said latch means and said switch and effective to hold the switch closed, and means responsive to return movement of the carriage operatively connected to said latch and effective to release the latch to permit the switch to open and terminate the printing operation.
Claim 6
Dependent Claim
74 words
A time stamping device as defined in claim 4, in which a cam is drivenly connected to said timing motor, a cam follower is operatively connected to said cam and to a pawl and ratchet mechanism, the latter being operatively connected to said print wheels to turn the same, and in which the cam configuration is such as to cause smooth acceleration and deceleration of the pawl movement, whereby the operation is relatively quiet.
Claim 7
Dependent Claim
111 words
A time stamping device as defined in claim 5, in which the impression roller and carriage move progressively from print wheel to print wheel in the direction of the axis of the print wheels in moving from said first to said second position, and in which there is an ink ribbon extending from a supply roll to a takeup roll in a direction transverse to the axis of the print wheels, said ribbon being as wide as the entire assembly of print wheels, said ribbon being disposed beneath the print wheels and above the document to be stamped, and said carriage and impression roller travelling beneath the document to be stamped.
Claim 8
Dependent Claim
63 words
A time stamping device as defined in claim 1, in which an electrical switch is closed by said trigger when the latter is engaged by said document to initiate the printing operation, latch means to hold the switch closed, and means responsive to return movement of the carriage to release the latch to permit the switch to open and terminate the printing operation.
Claim 9
Dependent Claim
74 words
A time stamping device as defined in claim 1, in which a cam is drivenly connected to said timing motor, a cam follower is operatively connected to said cam and to a pawl and ratchet mechanism, the latter being operatively connected to said print wheels to turn the same, and in which the cam configuration is such as to cause smooth acceleration and deceleration of the pawl movement, whereby the operation is relatively quiet.
Claim 10
Dependent Claim
119 words
A time stamping device as defined in claim 1, in which there are rails on which said carriage rides during its movement from said first to said second position, the starting end of said rails sloping up toward said print wheels from said first position to lift the carriage and impression roller into operative engagement with said print wheels as the carriage is moved toward said second position, said rails being terminated beyond said impression position and in advance of said second position to afford movement of the carriage away from the print wheels, and means mounting said rails on said housing and effective to permit return movement of the carriage back to said first position beneath the rails.
Claim 11
Dependent Claim
234 words
A time stamping device comprising a housing wiThin which is a timing motor, a series of time print wheels and mechanism driven by said timing motor to turn said print wheels, a carriage mounted for travel along said print wheels in a printing stroke from a first position located to one side of a first print wheel and a second position located to the other side of the last print wheel, means operatively connected to said carriage for thus moving it and for returning it to said first position after a printing stroke, an impression roller carried by said carriage and serving to press against said print wheels successive parts of a document inserted between said roller and said wheels, said impression roller being spaced from said print wheels when said carriage is in said first position, said rails in said housing on which the carriage rides during its print travel, the starting end of said rails sloping up toward said print wheels from said first position to lift the carriage and impression roller into operative engagement with said print wheels as the carriage is moved toward said second position, said rails being terminated at said second position to afford movement of the carriage away from the print wheels, and means mounting said rails on said housing and effective to permit return movement of the carriage back to said first position beneath the rails.
Claim 12
Dependent Claim
234 words
A time stamping device comprising a housing wiThin which is a timing motor, a series of time print wheels and mechanism driven by said timing motor to turn said print wheels, a carriage mounted for travel along said print wheels in a printing stroke from a first position located to one side of a first print wheel and a second position located to the other side of the last print wheel, means operatively connected to said carriage for thus moving it and for returning it to said first position after a printing stroke, an impression roller carried by said carriage and serving to press against said print wheels successive parts of a document inserted between said roller and said wheels, said impression roller being spaced from said print wheels when said carriage is in said first position, said rails in said housing on which the carriage rides during its print travel, the starting end of said rails sloping up toward said print wheels from said first position to lift the carriage and impression roller into operative engagement with said print wheels as the carriage is moved toward said second position, said rails being terminated at said second position to afford movement of the carriage away from the print wheels, and means mounting said rails on said housing and effective to permit return movement of the carriage back to said first position beneath the rails.
Claim 13
Dependent Claim
70 words
The time stamping device of claim 10, in which there are means operatively connected to said rails to support them against downward movement thereby to support said rails and said carriage when said carriage is located on top of said rails, said starting end of said rails being movable upwardly, thereby to permit passage of said carriage there beneath in moving from said second position back to said first position.