Unlike the Half Cross Tent Stitch, the Continental Stitch can be used on any type of needlepoint canvas and provides excellent coverage that makes the finished needlework sturdy enough to last a lifetime. Take a look at the image above. It shows the front...MORE and back sides of the Continental Tent Stitch.
A brake booster is an enhanced master cylinder setup used to reduce the amount of pedal pressure needed for braking. It employs a booster set up to act with the master cylinder to give higher hydraulic pressure to the brakes and/or lower force applied on the brake pedal through a brake booster push-rod.
A brake booster needs the right amount of vacuum to operate correctly. This is typically engine manifold vacuum (17-21Hg). On some engines, particularly diesels, an auxiliary pump is used to create vacuum. This vacuum is applied to both sides of the booster. Both the pedal side and the master cylinder side. As the driver presses the brake pedal, the vacuum valve blocks the vacuum source located on the pedal side of the booster. At the same time the air valve moves allowing atmospheric pressure in.