Abstract: An automatic deadbolt and combined latch and automatic deadbolt is disclosed whereby a manually operable control on the inside of a door may be used to enable and disable the automatic extension of the latch bolt to a comparable deadbolt position upon the closing of the door. This allows one not having a key to the lock to set the manual control and then leave a premises, whereby upon the closing of the door the latch bolt will automatically extend to a deadbolt position, being retractable therefrom to again open the door either by the use of a key from outside, or by rotation of the inner latch control to withdraw the latch. Withdrawing the latch to open the door resets the deadbolt function in the embodiment described so that upon subsequent reclosing of the door, the automatic deadbolt function will not be reactivated unless specifically called for by control of the inside side of the lock mechanism.

Abstract: A rail comprising, an elongated wooden core, a weather and abrasion resistant protective coating surrounding the core in contact relation therewith, and a plurality of one-way valve like perforations in the coating for releasing vapor from the core through the coating and substantially preventing the passage of water through the coating toward the core, and the method of manufacture thereof.

Abstract: A fence structure in which the rails are hollow members having a generally rectangular cross-sectional configuration. Special features of the hollow rail include rigid foam plastic material filling its interior; interfitting tongue and groove means formed on the upper and lower walls of the rail; and/or the upper wall of the rail being open so that its interior may be filled with an earth material. The invention is particularly directed toward portable fence structures used for horses.