Safety device
AssigneeModine Manufacturing Company
InventorRobert F. Miller
Life of this patent
Estimating the term…
Abstract
A safety device for roll forming apparatus that has a pair of oppositely rotating pressure rollers with parallel axes and peripheral cylindrical surfaces which define between them a gripping and contact gap. The safety device comprises a pair of safety rollers located rearwardly of the pressure rollers and having peripheral portions spaced apart a distance greater than the gap between the pressure rollers and means for rotating the safety rollers in a rearward direction with respect to the pressure rollers in order to engage and reject foreign articles placed between the safety rollers.
Claims9
An apparatus having a pair of oppositely rotating pressure rollers with parallel axes and peripheral surfaces which define between them a gripping and pressure gap urging articles gripped by said pressure rollers on opposite surfaces of said articles from a rearward position forwardly, a safety device, comprising:
- a pair of safety rollers located rearwardly of said pressure rollers and each adjacent to a said opposite surface of said articles and having peripheral portions spaced apart a distance greater than said gap;
- and means for rotating both said safety rollers in a rearward direction such that their closest peripheral surface portions move away from each other and away from said pressure rollers to reject foreign articles at either or both sides of said articles and propel said foreign articles rearwardly away from each of said pressure rollers.
Dependencies are inferred from the claim text.