| 摘要 |
SLIDING PANEL ROLLER ASSEMBLY This invention relates to closures which comprise horizontally sliding, closing panels such as patio screen doors which move on grooved rollers on a guide track. More particularly, this invention relates to a novel roller assembly for such doors and the improved doors themselves. The roller assembly of this invention comprises a grooved wheel attached to a perforated metal tape or spring which is movable over a sloping track by means of a toothed gear wheel or sprocket. |
