Abstract: A valve actuator employs a torsion spring type clutch to engage and disengage a drive motor and an output shaft. The torsion spring normally engages and is connected to a gear which may be engaged by a dog to cause disengagement of the clutch. The output shaft carries a pinion which is engaged with a rack carried on a piston which is slidable in a closed fluid containing cylinder. The piston includes an axial passageway with a metering orifice therein which smoothes the operation of the actuator and provides positive stops for the output shaft with a minimization of impact between the piston and the ends of the cylinder.

Abstract: This invention relates to heat transfer presses and more particularly to the transferring of a colored picture printed on paper to polyester knit goods by means of heat and pressure. The polyester cloth heat softens while the ink vaporizes and passes through the intercies of the cloth. The cooling of the cloth locks the vapors in the material producing the effect of a dyeing process.