Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
125 words
A one-cycle drive mechanism comprising: a continuously rotating drive wheel; a driven member; a cam wheel having a lobe and a dwell, said cam wheel being mounted so that said lobe of said cam wheel is capable of engagement with said continuously rotating drive wheel and said dwell of said cam wheel is not capable of engagement with said continuously rotating drive wheel, said driven member being eccentrically connected to said cam wheel; and means for normally retaining said cam wheel in an angular position such that said dwell is nearest said drive wheel, said retaining means being responsive to an actuating signal to release said cam wheel to allow said dwell to engage said drive wheel to turn said cam wheel through one revolution.
Claim 2
Dependent Claim
125 words
A one-cycle drive mechanism comprising: a continuously rotating drive wheel; a driven member; a cam wheel having a lobe and a dwell, said cam wheel being mounted so that said lobe of said cam wheel is capable of engagement with said continuously rotating drive wheel and said dwell of said cam wheel is not capable of engagement with said continuously rotating drive wheel, said driven member being eccentrically connected to said cam wheel; and means for normally retaining said cam wheel in an angular position such that said dwell is nearest said drive wheel, said retaining means being responsive to an actuating signal to release said cam wheel to allow said dwell to engage said drive wheel to turn said cam wheel through one revolution.
Claim 3
Dependent Claim
82 words
The one-cycle drive mechanism of claim 1 wherein said retaining means comprises: a solenoid having a coil and a plunger; means for resiliently urging the plunger of said solenoid into engagement with said cam wheel for retaining said cam wheel in an angular position such that the dwell of said cam wheel is nearest said drive wheel; said coil of said solenoid being connected to said actuating means to release said plunger from said cam wheel in response to an actuating signal.
Claim 4
Dependent Claim
45 words
The one-cycle drive mechanism of claim 2 further comprising means for resiliently urging said lobe of said cam wheel toward engagement with said continuously rotating drive wheel when said cam wheel is in the angular position such that said dwell is nearest said drive wheel.
Claim 5
Dependent Claim
44 words
The one-cycle drive mechanism of claim 1 wherein said driven member comprises a movable claw member disposed on one side of the film for engaging the sprocket holes of the film; and further comprising means for resiliently urging said claw member toward said film.
Claim 6
Dependent Claim
35 words
The one-cycle drive mechanism of claim 1 wherein the tip of said claw member has a cam surface for causing said claw member to disengage from the sprocket hole of the film during return travel.
Claim 7
Dependent Claim
48 words
The one-cycle drive mechanism of claim 1 further comprising: a pressure plate for contacting the opposite side of the film from said claw member such that the tip of said claw member rests against said pressure plate when said claw member engages a sprocket hole of the film.
Claim 8
Dependent Claim
54 words
The one-cycle drive mechanism of claim 2 further comprising: a guide surface aligned with the sprocket holes of the film and extending in the direction of travel of the film, said means for resiliently urging said claw member toward said pressure plate also serving to resiliently urge said claw member against said guide surface.
Claim 9
Dependent Claim
22 words
The one-cycle drive mechanism of claim 1 further comprising: a source of actuating signals having a repetition rate controllable by an operator.
Claim 10
Dependent Claim
39 words
The one-cycle drive mechanism of claim 8 further comprising: means controllable by an operator for continuously actuating said retaining means to permit said cam wheel to continuously engage said drive wheel to advance the film at a rapid rate.