Abstract: A stove-hood fire extinguisher system includes a reservoir for fire extinguishing agent, and a distributor arm which in turn includes a fluid tube and an actuator tube. An extinguisher valve connects the reservoir to the fluid tube, and includes a valve stem extending into the actuator tube. A fuse mechanism on the distributor arm includes a fuse element, a movable trigger extending from the fuse element into the actuator tube, and a tightener to press the fuse element against the trigger. An actuator mechanism in the actuator tube includes an actuator rod with a detent block on one end for engagement with the trigger and a ramp on the other end for engagement with the valve stem, and a compression spring urging the ramp toward the valve stem. The trigger extending into the detent groove holds the actuator rod in a retracted position. Rupture of the fuse element releases the trigger from the detent groove, and the spring drives the actuator rod and ramp against the valve stem to open the extinguisher valve.

Abstract: Analogs of methionine.sup.5 -enkephalin and leucine.sup.5 -enkephalin wherein the L-phenylalanyl residue in position 4 has been substituted by various other amino acid residues are disclosed herein. These analogs exhibit agonist activity at opiate receptor sites and are thus useful as analgesics, non-addicting narcotic antagonists and anti-diarrheal agents.

Abstract: Analogs of enkephalin having agonist activity at opiate receptors are disclosed herein. These analogs are useful as analgesics, non-addicting narcotic antagonists and anti-diarrheal agents.

Abstract: A workpiece transfer mechanism including a base having spaced parallel slides mounted in spaced parallel ways, bellcrank levers having their central portions pivotally mounted on the slides and having first portions pivotally mounting workpiece engaging members and having second portions connected by tie rods, with the force required to overcome the frictional engagement between the slides and the ways being greater than the force required to pivot the bellcrank levers, whereby the application of a unidirectional force to the tie rods will cause the workpiece engaging members to engage the workpiece prior to the time that the unidirectional force will cause the slides to move in the ways to transfer the workpiece from one position to another.