Collar-sides, pads, and connections are made in different sizes to suit the number of collar. All the other parts will fit any collar.
DESCRIPTION OF PARTS OF COLLAR.
Fig. 70.
and the bolts for top connection, bottom of collar, extension, and trace-plate.
The table of dimensions at the top of next page gives the largest size to which each number of collar can be adjusted. Each collar can be made 1½ inches shorter and 1¼ inches narrower than the dimensions given. Sizes 5 and 6 are used in the U. S. service.
To shorten the collar, take out the bolt that fastens the extension to collar-side, and press the extension down into the collar-side one or two holes as desired, and replace the bolt.