Browse Prior Art Database

Envelope Hopper Restraint Mechanism

IP.com Disclosure Number: IPCOM000087660D
Original Publication Date: 1977-Mar-01
Included in the Prior Art Database: 2005-Mar-03
Document File: 2 page(s) / 51K

Publishing Venue

IBM

Related People

Feinstein, P: AUTHOR [+2]

Abstract

Illustrated is a device for accurately restraining envelopes in an envelope hopper such that they can be accurately fed to a using device.

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Envelope Hopper Restraint Mechanism

Illustrated is a device for accurately restraining envelopes in an envelope hopper such that they can be accurately fed to a using device.

The envelopes are stacked in the hopper and are driven upward by any suitable means such as an elevator. To load envelopes, the operator opens the envelope hopper by moving the door to the right. The operator then loads the envelopes and positions the stop in contact with the envelopes. When the door is closed, the lower restraint bail, which is spring-loaded to rotate toward the envelope stack, moves in and contacts the stop. Any further movement by it is limited by the stop, thus the lower restraint bail bears against the envelopes to keep them stacked.

The lower restraint bail also moves into contact with the upper restraint, which is used to maintain the envelope stack in a proper alignment as the envelopes move up out of the hopper. The upper restraint is also spring-loaded, but in a direction opposite to the spring-loading of the lower restraint. However, the spring force acting on the lower restraint bail is sufficient to overcome the spring force of the upper restraint bail.

The limit tip on the lower restraint bail is provided to limit the movement of the lower restraint bail when the door is opened and to prevent the spring bias on the lower restraint bail from driving the lower restraint bail into a position where it would not contact the stop when the door is again closed.

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