Abstract: In fabrication of conventional spirally wound cells, a length of separator is provided at least twice as long as one of the electrodes, for example, the cathode, and then folded to cover both sides of the electrode. The separator is also somewhat wider than the covered electrode to extend beyond the upper and lower edges thereof. The cathode assembly is then placed along side a strip of anode material and rolled into a jellyroll configuration. The separator sheet is not sealed at the opposed upper and lower edges of the cathode, and during high shock and vibration conditions the edges tend to mushroom which can lead to short circuit conditions. The insulator of the present invention is a slotted member that covers the upper and lower edges of the other electrode not covered by the separator, for example the anode with the anode leads extending through the slots to shield them from short circuit conditions with the cell casing or other leads if the cell should be subjected to severe shock forces and the like.

Abstract: An ergonomic adjustable microscope base comprising a base positioned on a support surface; rubber bumpers to prevent the base from sliding on the support surface; fasteners for attaching and locking a microscope in a nonmovably mounted relationship with the upper surface of the base; and manually rotatable and lockable adjusters, located at each rearward corner of the base and operatively associated with the base, to provide for selectively varying the rearward vertical height of the base and mounted microscope relative to the support surface, thereby providing a range of forward tilt angles so that a user of the microscope is able to maintain a more neutral position in the neck, back, and shoulder areas.