ss orcades was an ocean liner serving primarily the uk – australia – new zealand route. she started service as a british royal mail ship rms carrying first and tourist class passengers. orcades carried many migrants to australia and new zealand and was later used as a cruise ship, and is featured in the british pathe films 'i am a passenger' on youtube.
explodes, breaks up and crashes off the coast of long island 30 minutes after taking off from new york bound for paris due to a catastrophic central fuel tank explosion resulting with the forward fuselage section, which included the main flight deck first class and a portion of business class separating causing the remaining after section to .
the coordination of various machine elements including leadscrew, slide rest, and change gears was the technological advance that allowed the invention of the screw-cutting lathe, which was the origin of single-point threading as we know it today. today engine lathes and cnc lathes are the commonly used machines.
user 18.104.22.168 added a description of taptite screws to the 'fasteners with a tapered shank self-threading screws ' section. taptite seems to be a particular brand of screws. perhaps there is common usage of the word, taptite for a particular kind of screw, but based on a review of the company's web site it looks like they make a range of .
bismarck was the first of two bismarck-class battleships built for nazi germany's kriegsmarine. named after chancellor otto von bismarck, the ship was laid down at the blohm & voss shipyard in hamburg in july 1936 and launched in february 1939. work was completed in august 1940, when she was commissioned into the german fleet.
some screws have an unthreaded portion of the shaft under the head, which is known as the shank. in every other place the word shank is use it sounds like it means shaft. for instance: fasteners with a non-tapered shank are designed to mate with a nut or to be driven into a tapped hole.
bismarck was the first of two bismarck-class battleships built for nazi germany's kriegsmarine.named after chancellor otto von bismarck, the ship was laid down at the blohm & voss shipyard in hamburg in july 1936 and launched in february 1939. work was completed in august 1940, when she was commissioned into the german fleet. bismarck and her sister ship tirpitz were the largest battleships .
a powder-actuated fastening results in a permanently installed fixture. every fastener must be equipped with some type of tip, washer, eyelet or other guide member. this guide member aligns the fastener in the tool as it is being driven and is commonly used to retain the fastener in the tool. common fasteners
tapcon screws are a popular anchor that stands for self tapping self threading concrete screw. larger diameter screws are referred to as ldt's. this type of fastener requires a pre-drilled hole—using a tapcon drillbit—and are then screwed into the hole using a standard hex or phillips bit. these screws are often blue, white, or stainless.
a screw is a type of fastener, in some ways similar to a bolt see differentiation between bolt and screw below , typically made of metal, and characterized by a helical ridge, known as a male thread external thread . screws are used to fasten materials by digging in and wedging into a material when turned, while the thread cuts grooves in the fastened material that may help pull fastened materials together and prevent pull-out.
hms argus was a british aircraft carrier that served in the royal navy from 1918 to 1944. she was converted from an ocean liner that was under construction when the first world war began and became the first example of the standard pattern of aircraft carrier, with a full-length flight deck that allowed wheeled aircraft to take off and land. after commissioning, the ship was involved for .
the design 1095 ship was an emergency fleet corporation efc design for a troop transport to be built at new york shipbuilding corporation and delivered to the united states shipping board ussb that, at the end of world war i hostilities, was modified to a combined passenger and cargo vessel. the contract was for thirteen ships, efc hulls 2579 though 2591, but later adjusted to seven ships .