公开(公告)号：US3612377A

公开(公告)日：1971-10-12

申请号：US3612377D

申请日：1970-03-23

Applicant: MIDWESTERN INSTR INC

Inventor： PEMBROKE RICHARD W

IPC: G11B15/22 ,  B65H23/10

CPC classification number: G11B15/22

Abstract: A brake for stopping a magnetic tape having a first brake block and second brake block providing a tape channel therebetween, the first brake block having apertures therein communicating with the channel and a passageway communicating with the apertures and extending exteriorly of the brake block, the second brake block having a cavity opposite the apertures, a brake pad positioned in the cavity, the brake pad being formed of sintered metal spheres and having porosity permitting air to pass therethrough into and out of the cavity, and means for supplying air pressure to the first brake block passageway whereby air flows through the apertures and against the tape to force the tape into contact with the brake pad.