EP 0261354 B1 19891220 - SHEET FEEDER AND LAYER
Title (en)
SHEET FEEDER AND LAYER
Publication
Application
Priority
CH 383086 A 19860924
Abstract (en)
[origin: US4836528A] Successive sheets are drawn from a magazine by a gripper which is movably mounted on a drum-shaped rotary conveyor and serves to transfer successive sheets into a gathering machine. The position of the gripper with reference to the conveyor is indicative of the thickness of the sheet or sheets which are transported from the magazine, and such position is ascertained by a monitoring device in cooperation with an input element which is movable with the gripper. The input element can constitute a soft iron core which extends into a coil of an oscillatory circuit constituting the monitoring device, a plate which extends between the plates of a capacitor forming part of the monitoring device, or an arm for a disc bearing encoded information which is monitored by a photoelectronic transducer. The monitoring device transmits signals to a circuit which is adjacent the path of movement of the gripper and includes the transducer or a winding cooperating with a winding of the oscillatory circuit. Signals from the winding or from the transducer are processed by an evaluating circuit and are used to regulate the speed of the conveyor.
IPC 1-7
IPC 8 full level
B41F 21/00 (2006.01); B41F 33/06 (2006.01); B41F 33/14 (2006.01); B65H 3/08 (2006.01); B65H 3/24 (2006.01); B65H 7/12 (2006.01)
CPC (source: EP US)
B65H 3/0875 (2013.01 - EP US); B65H 7/12 (2013.01 - EP US)
Designated contracting state (EPC)
AT DE FR GB IT
DOCDB simple family (publication)
EP 0261354 A1 19880330; EP 0261354 B1 19891220; AT E48823 T1 19900115; CH 671754 A5 19890929; DE 3761203 D1 19900125; JP 2513714 B2 19960703; JP S6387456 A 19880418; US 4836528 A 19890606
DOCDB simple family (application)
EP 87111137 A 19870801; AT 87111137 T 19870801; CH 383086 A 19860924; DE 3761203 T 19870801; JP 20839487 A 19870824; US 10008887 A 19870923