Abstract: A pressure exerting device comprising a resilient wedge shaped member and modified U-shape air bladder which may be filled to selected air pressure exerts pressure to a pre-selected pressure in a uniform manner over selected lumbar and sacroiliac areas of the body.
Abstract: The improvement in a blade honing device having jaw members adapted to grip a blade to be honed and having honed guide members is to pivotally secure the hone guide members to one of the jaw members in such manner that the hone guide members may be folded from an operative position to a folded position in which they lie contiguous to and lengthwise along the jaw members.