| OCR Text |
Show Automatic Fasteners to Hold Garage Doors Open A simple device for holding garage doors open automatically is illustrated below. Two swivel bolts are made as detailed and fastened through the lintel lin-tel or head jamb of the door. They are free to turn as the long locking bars pass through the slots in them. When the doors are opened the required dis annul DOC.T5 v v" POOS LINTTJ.-) jlftliuj7uniNG CHAINS' YtAJ&lliill frVl-rflft LOCKING ERS St OOOft SHUT DOOfiOPtN L&d AHOtXXKtD ANDKXKU Even in a High Wind the Heavy Garage Doors Are Prevented Automatically Auto-matically From Closing. tance, notches In the bars engage the bolts and act as a catch. The bars then will hold the doors open against the strongest wind. If the garage has a side entrance, the same bars also may be used as a lock. It Is necessary merely to cut a second notch in each bar as shown, and enlarge the pivot hole to an oval. Chains or bell cords fastened to the ends of the bars and passed over pulleys pul-leys provide convenient means for unlocking un-locking the doors. F. N. G, in Popular Popu-lar Science Monthly. |
