Ads
related to: lockable metal garden gatesuline.com has been visited by 100K+ users in the past month
Search results
Results From The WOW.Com Content Network
Ship caisson at Droogdok Jan Blanken at Hellevoetsluis. A caisson is a form of lock gate.It consists of a large floating iron or steel box. This can be flooded to seat the caisson in the opening of the dock to close it, or pumped dry to float it and allow it to be towed clear of the dock.
Get AOL Mail for FREE! Manage your email like never before with travel, photo & document views. Personalize your inbox with themes & tabs. You've Got Mail!
A portcullis (from Old French porte coleice 'sliding gate') is a heavy, vertically closing gate typically found in medieval fortifications. [1] A portcullis gate is constructed of a latticed grille , made of wood or metal or both, which slides down grooves inset within each jamb of the gateway.
Electric gates alone, however solid and imposing they may be, cannot guarantee a completely secure environment electric locks, are often needed to boost the locking effectiveness of the gate motors. Electric gates are recommended to be used in combination with other security features to install a full security system .
These gates are made of wooden boards and date from 1814. A guillotine lock is a type of canal lock. The lock itself operates on the same principle as any normal pound lock, but is unusual in that each gate is a single piece, usually of steel, that slides vertically
The Stewart Iron Fence Company's manufactured range of products, made to order on the basis of quotations submitted by the company, were: "Iron Fence and Entrance Gates, Iron Reservoir Vases, Iron and Wire setters, Stable fittings, Lamps, Grills, Office Partitions, Window Guards, general Ornamental Iron Works, Jail and Prison security Iron Works and Steel Grills".