DIMENSIONS OF HELMET: 8" H x 5 3/4" W   WEIGHT 2 lbs 12 oz

 

Presented is a miniature 12 bolt, 3 light Siebe.Gorman that is made by hand in the same fashion as the full size helmet which it replicates. It is accurate down to the smallest detail which includes proper air vents, a working pressure relief valve, opening front port, adjustable spit cock and much more.

 

 

The scale is 2.75:1 and is made according the original drawings. All of the copper is 0,6 mm thick and is beaten by hand like the original helmets on wooden moulds and tinned inside. All brass parts are made exactly to scale and guaranteed to be fully functional, just like the actual helmets. The bonnet and the breast plate are detachable by means of an interrupted four part thread connection with a locking device.

The bonnet of the helmet has a working air intake with non-return valve, a telephone elbow and cap nut, two oval side windows, a detachable face plate, a “spitcock valve”, hooks and eyes and a complete adjustable exhaust valve.The interior of the bonnet has the air-ducts. The breast plate has four straps and twelve wingnuts and is marked with a proper Siebe Gorman nametag.

Every helmet has a serial number on the face plate and in the interior of the connecting rings. The helmet is delivered on a lacquered wood support, and includes a wingnut spanner.

 

 

Communication, Intake, Exhaust          All the parts assemble CONDITION and MARKINGS: This replica is hand made in the same manner as the real one so expect to see some very small marks of hand assembly and finishing just as will be found on the real helmet. The bonnet and breast plate have matching numbers.      BRIEF HISTORY: Augustus Siebe the German-born founder of the firm which bears his name (1788-1872) is considered "the father of diving". Siebe's 'closed' diving helmet, first produced in 1840, allowed divers to dive safely to greater depths than ever before. Attached to a rubber suit, it became the 'Standard Dress' that revolutionized diving and made the underwater worker an essential part of both salvage operations and civil engineering. Many of the great building projects of the Victorian era - bridges, tunnels and lighthouses still in use today - could not have been built without divers.   Siebe's design was so successful that it remained in use, essentially unchanged, until 1975. However, the Royal Navy required one of their own design, and the British Admiralty requested a helmet made to their specifications which used heavier materials in 1938. This was the Royal Navy six bolt helmet, as seen in this offering. The rest of the "Jake" was standard commercial equipment, except for the front weight which had a light fitted to it, to aid the diver. The chest weights weigh about 40lbs. each and are tied down to stop the helmet rising from the diver’s shoulders. The weights are hung from weight hangers on the front of the breast plate.   The  Royal  Navy set  out   to  extend   the limits of deep diving and established a world depth record, in 1948, of 540-feet wearing a Seibe Gorman helmet of this design, but incorporating  a Davis Injector system, flexible dress, and  used the  fast dwindling  supplies of  American Lend-Lease helium. Petty-Officer Bollard set the depth record that was to last eight years. Not until 1956 would the baton pass to another.  In October of that year, Senior Commissioned Boatswain George  Wookey, descended to a depth of 600-feet, setting record for a helmeted diver wearing flexible dress that still stands.    OUR GUARANTEE OF SATISFACTION: If not completely satisfied with your purchase it may be returned, if without damage, within five days of receipt in its original condition and packaging. Return items must be insured for their full value. A prior email authorization by us for the return is required. Unfortunately, no refund can be made for the cost of shipping, packaging and handling unless we are at fault. INTERNATIONAL BUYERS WELCOME, but contact us first. We have customers in Australia, Austria, Belgium, Bermuda, Canada, Chile, China, Denmark, England, France, Germany, Holland, Hong Kong, Iceland, Ireland, Israel, Italy, Japan, Kuwait, Martinique, Mexico, New Zealand, Norway, Nova Scotia, Portugal, Saudi Arabia, Scotland, Singapore, Spain, Sweden, Switzerland, Thailand, USVI and the Eastern Caribbean.  ACCEPTED FORMS OF PAYMENT are Bank wire transfer, cashier's check, money order, or personal check in which case the item will be held until cleared. No credit cards or PayPal accepted on this item.      Copyright 2006 by Land And Sea Collection.com, All Rights   Select a thumbnail from the left to zoom. Image #1 Image #2 Image #3 Image hosting and Zoom Gallery by VillagePhotos.com