'The story of rock drilling ' about the various types of drills and bits used for drilling into rocks in the United States. An iron mine in northern New York. A diamond ore drill being used to explore rock samples. A man works on the drill. Men work on hollow drill rods with core along the lines of the rod. Men place the drill rods in a box in a sequence.
The various types of drills and bits used for drilling into rocks in the United States. An iron mine in northern New York. Men work on rocks in 40 to 100 feet deep mines. Rotators or automatic hammers being used to cut into rocks by a man. The rotators being operated by a hand as they drill into an ore bench in a mine. A man operates a hand rotator to break a large rock fragment.
The various types of drills and bits used for drilling into rocks in the United States. An iron mine in northern New York. Men in a mine use a heavy hammer drill to dig out holes in rocks. A workers fills explosives in the holes. Fuses of the explosives being lit up. The extracted ore being transported in cars. A Corliss hoist in operation.
Documentary about buildings of New York. The buildings and skyscrapers along lower Broadway. A dirigible airship floats overhead. The busy street with vehicles, streetcars and crowds of people walking. The New York City Hall (City Hall Park, New York, NY 10007, United States), built over a hundred years ago. The high-rise Manhattan Municipal Building (1 Centre St, New York, NY 10007, United States). The James A. Farley Building housing the United States Postal Service (421 8th Ave, New York, NY 10001, United States) on Eighth Avenue. The Flatiron Building (175 5th Ave, New York, NY 10010, United States) stands on edge of busy crossroads.
The Ford family at the Lincoln purchase ceremony in New York, United States. Officials pose in front of the Lincoln Building. The guests enter the building. A portrait of Henry Ford on a window of the building. Officials leave the building . They enter an automobile. Henry Ford, Mrs. Clara Jane Bryant and Edsel Bryant Ford pose with a floral basket. Automobiles and the Lincoln Building in the background. The flag of the United States in the background. Henry Ford converses with Mr. Leland. Henry M. Leland of the Lincoln motor company and his wife leave the building followed by Henry Ford and other officials. The group poses outside with flowers.
Brigadier General Billy Mitchell taxis in a Boeing Model 15 ( or a Curtis P-1Hawk) airplane, after landing at an airfield. . Battle ships underway at sea. Mitchell organizes 1st provisional Air Brigade for bombing demonstration against battleship target.. Crews and airplanes train and prepare at Langley Field, Virginia. Soldiers load bombs under plane wings. Planes take off to bomb the obsolete U.S. battleship USS Alabama. View from airplane in flight as it drops phosphorus bomb on the Alabama. View from water as bomb strikes with huge explosion. Armorers prepare heavier bombs for the next demonstration. Planes take off and bomb the USS Alabama again. General Mitchell crouched down beside a bomb loaded on an airplane for new tests in 1923. General Pershing, Admiral Shoemaker, Assistant Secretary of War, Davis, and General Patrick on deck of the Ship, USS St. Mihiel (AP-32) to observe the tests. Views of planes dropping bombs on Battleship USS Virginia and the ship rolling over and sinking. Large formations of 1920s era Air Service aircraft in flight.
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