it provides clearance and facilitates fitting. 95. The Whitworth, or English standard, has an angle of 55° and the point of the V is rounded top andbottom ^- of the height. 96. The Buttress thread gives a form of great strength where the load is always in the same direction.Its friction is low and… … Fig. 10. 36 97- The U. S. Buttress is a modified form of tlie preceding used by the U. S. Government for breechblocks of guns and for armor plate bolts. 98. The Square thread is used for power transmission screws where large pressures are applied. Itsfriction is low, but it is expensive to fit.…
Mechanical drawing · Lettering
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.
