A double tube of copper, in section like the figure 8, into which the ends of bare wires are pushed so that when the tube is twisted an electrical connection is made. The joint thus made is called a McIntire joint.
The hollow metal tube fit over the bar on most exercise barbell and dumbbell sets. This sleeve makes it easier for the bar to rotate in your hands as you do an exercise. Spotters - Training partners who stand by to act as safety helpers when you perform such heavy exercises as squats and bench presses. If you get stuck under the weight or begin to lose control of it, spotters can rescue you and prevent needless injuries.
A sleeves is a DVD case made from a single sheet of cardboard printed on one side then folded and glued to form a pocket that is open on one side. When assembled Printing will be on both sides of the sleeve.
The part of the flag usually doubled over, through which the staff is slipped prior to attachment. The sleeve can be either reinforced or not. The reinforcement is referred to as the inner sleeve while the doubled flag fabric is referred to as the outer sleeve.
A Liner, generally metallic, used to create an annulus for or around the penetrants. May be placed into concrete as it is poured or may be placed around a penetrant and inserted into a wall as it is erected.
A replaceable cylinder that can be removed from the block. Sleeves are never bored out. Tractors were commonly made with sleeved engines. Contrast this with most automobiles where the block and cylinders are integral. Sleeves are sealed at the top and bottom since coolant circulates by their sides but the top and bottom are open to the combustion chamber and crankcase respectively.
An insert of special material placed in a barrel to reduce bore erosion, renew an eroded bore. They are also used to strengthen a barrel or alter the diameter to accept a different caliber of ammunition. Also called a barrel liner.
The largest contact of a 1/4" (or mini) phone type connector. The cable shield or common wire is connected to this point in balanced wiring, the negative and shield in unbalanced wiring is connected here. Same as the shell of the connector.