The face of the flange will be held true one way by the face on the angle plate, but must be set true the other way.
The truest flange should be the one first bolted to the angle plate.
Chucking with the aid of the angle plate, or with the angle plate employed in conjunction with the chuck plate.
It carries an horizontal table, or angle plate, on which the work may be chucked.
We then turn the surface a down upon the angle plate and bolt it again as before.
An excellent example of angle plate chucking is furnished in a pipe bend requiring both flanges to be turned up.
The method of chucking is shown in Figs. 902 and 903, the flanges being simply bolted to the angle plate.
A balance weight w, Fig. 907, is necessary to counterbalance the weight of the angle plate.
The third chucking is made by simply moving the work on the angle plate again, and setting as in the last instance.