Advancing material of indeterminate length – Plural material-moving means – Continuous feed from serial sequentially operated feeders
Patent
1981-10-09
1983-09-27
Levy, Stuart S.
Advancing material of indeterminate length
Plural material-moving means
Continuous feed from serial sequentially operated feeders
226115, 226162, 74 27, B65H 1734, F16H 3716
Patent
active
044063903
ABSTRACT:
This invention includes apparatus providing for continuous motion and constant velocity to a traveling web usually including at least one film. A pair of grippers are arranged to grasp the film and are alternately actuated to advance the web. Each of the grippers are carried on the distal end of a reciprocated member. A motor is connected to a first shaft to turn four sprockets carried thereon. Each sprocket engages a roller chain assembly arranged in an endless manner and disposed to be moved in an oblong path. The roller chains are moved in a reciprocable path by one of a pair of crank arms driving and moving Pitman arms connected thereto. The oblong roller chains are operatively connected to and move lever arms pivotally connected to drag links which in turn move the reciprocated members. The apparatus includes a crank arm, a Pitman arm, drag links and reciprocable member with each as an assembly moved one hundred eighty degrees out-of-phase with a like assembly. The reciprocable movement of the frame carrying the oblong roller chains lengthens the forward stroke and shortens the rearward stroke while the speed of the roller chain remains constant. An overlap of the gripper actuation is provided by reciprocably moving the frame carrying the roller chain while moving the roller chain at a constant speed.
REFERENCES:
patent: 678476 (1901-07-01), Crowell
patent: 1208084 (1916-12-01), Bosch
patent: 1537749 (1925-05-01), Colgrove
patent: 2107607 (1938-02-01), Gobel
patent: 3403831 (1968-10-01), Lawson, Jr. et al.
patent: 3583268 (1971-06-01), Scribner
patent: 3733773 (1973-05-01), Hamilton
patent: 3844152 (1974-10-01), Peytavin
Haugland Scott J.
Levy Stuart S.
Roberts Ralph R.
LandOfFree
Continuous motion, constant velocity web feeding apparatus does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Continuous motion, constant velocity web feeding apparatus, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Continuous motion, constant velocity web feeding apparatus will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2126553