ing the draw four lines, parallel with the first four corner lines, previously glued surfaces into close contact and make two of which are % of an inch distant from the outside a permanent light-tight joint. When the joint is per- of the two center corner lines, and the other two ^ of fectly dry,… … sheet. : Fig. T.-TRUNCATED CORNERED PYRAMIDAL BELLOWS. Fig. 3 illustrates the way the lines are creased, which may be done by drawing and pressing the point of a ling and bending in the creased portions, continuing tooth brush handle or a carpenter's square lubricated the manipulation on each…
Bellows · Patented · Center · Contained · Lines · Valve · Scientific American · Express money · Address munn · Glass tube · Otto gas · Corner lines · Large number · Ring frame · Storage battery · Set screw
Internet Archive · Public domain (published before 1931). Free to use for anything.
