"Straighten right arm and right leg vigorously and swing butt of rifle against point of attack, pivoting…
Diagram illustrating gently inclined strata, with the clinometer in proper position to measure the dip…
A billiard cue, a baseball bat, a tennis racket, all the instruments used in golf, are hammers.
There are about 50 different styles of hammers, each one having a trade name. They are of every size,…
A trip hammer resembles a hand-hammer held in a horizontal position. The hammer is placed at the end…
Diagram illustrating the relationships of dip and strike of the inclined strata of an outcropping series…
"Nordenfelt Machine Gun. 1-10, parts of frame; 11, breech plug; 12, striker; 13, extractor; 14, cartridge…
A mallet is a type of hammer with a head made of softer materials than the steel normally used in hammerheads,…
This pile driver is powered by a horse. The horse will pull a cord that raises the weight. When the…
Such a hammer will deliver a blow at every stroke of the piston-rod, and with sufficient air-pressure…
An illustration of the plan of a strike fault. The fault surface is usually near vertical and the footwall…
"Striking machines are now very generally used for the operation. These consist of a drum or cylinder…
"And as he journeyed, it came to pass that he drew nigh unto Damascus: and suddenly there shone round…
In 1838, Nasmyth, of England, planned his really great invention — the steam-hammer. His idea…