Safety attachment for the horsehead of an oil well pumping unit
Scotch yoke
Scotch yoke having a curved track
Scotch yoke mechanism and power transfer system
Scotch yoke mechanism for secure track sliding
Scotch yoke piston and crankshaft connection with floating crank
Scram release for a control rod
Screw drive
Screw jack
Self-propelled vibratory plate
Servo head structure
Servo motor
Sewing machine noise and vibration reduction
Shaft coupling mechanism for a sewing machine
Shaker
Shaker for cot, stroller and baby carriage
Shaking apparatus
Shock absorber drive unit
Shock absorption apparatus associated with well pump
Shoe for swash-plate type compressor