The Ambu Plate Burning Rack, Figure [15], has been designed to easily secure the proper conditions. It consists of a wooden base with six different sets of slots properly spaced which cares for 98% of the batteries on the market. The guide bar or “comb” on top is slotted to match up with the base. (See figure 15.)
Figure 15[[1]]
The positions of the base and comb are so arranged that the plates are securely held on opposite corners, at exactly the right distance apart and are absolutely straight and parallel.
The wooden base prevents the plate proper from coming in contact with any metal and thus eliminates any possibility of later trouble due to impurities in the cell.
Figure 16[[1]]
In order to accommodate the different sizes and spacings, the comb can be adjusted vertically and the slots are arranged in groups of different spacings. These adjustments are flexible enough to allow the setting up of practically all the various groups used in the different makes and type of batteries.
Special fittings are provided so that after the plates and post are properly set a form can be built on the comb which not only locks the plates in the comb but prevents the hot lead from running off while burning and makes the finished strap of exactly the proper dimensions to properly fit into the jar.
For use in the smaller shop the small Ambu Plate Burning Rack, Figure [16], is recommended. It has all the features of the larger rack but the spacings of the combs limit it to the 7⁄64" and ⅛" spacings such as are found in all the popular batteries.