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Polesaw. A polesaw (also pole saw or giraffe saw) is a saw attached to a pole or long handle that is used for pruning tree branches that are beyond arm's reach. [1] [2] A polesaw allows its user to cut high branches without the use of a ladder. [3] Polesaws can be manual or motorized. A polesaw is common equipment for phone- and powerline ...
History In surgery Historical osteotome, a medical bone chainsaw. The origin of chainsaws in surgery is debated. A "flexible saw", consisting of a fine serrated link chain held between two wooden handles, was pioneered in the late 18th century (c. 1783 –1785) by two Scottish doctors, John Aitken and James Jeffray, for symphysiotomy and excision of diseased bone, respectively.
The Remington is a single-action, six-shot, percussion revolver produced by E. Remington & Sons, Ilion, N.Y., based on the Fordyce Beals patent of September 14, 1858 (Patent 21,478). [2] The Remington Army revolver is large-framed revolver in .44 caliber with an 8-inch barrel length. The Remington Navy revolver is slightly smaller framed than ...
The Remington Model 10 is a pump-action shotgun designed in 1908 by John Pedersen for Remington Arms. [2] It has an internal striker within the bolt and a tube magazine which loaded and ejected from a port in the bottom of the receiver. [5] An updated version, the Model 29, was introduced in 1930 with improvements made by C.C. Loomis.
Straight-pull rifles differ from conventional bolt-action mechanisms in that the manipulation required from the user in order to chamber and extract a cartridge predominantly consists of a linear motion only, as opposed to a traditional turn-bolt action where the user has to manually rotate the bolt for chambering and primary extraction.
Remington Model 1875 Single Action Army (a.k.a. Improved Army or Frontier Army) [2] was a revolver by E. Remington & Sons. It was based upon the successful New Model Army ( Remington Model 1858) with both revolvers having the same size, appearance, and the removable cylinder. The new 1875 Remington differed mainly from the older 1858 percussion ...
A large corpus of Byzantine military literature survives. Characteristically Byzantine manuals were first produced in the sixth century. They greatly proliferated in the tenth century, when the Byzantines embarked on their conquests in the East and the Balkans, but production abated after the early eleventh century.
The Model 11-48 is a long- recoil operated semi-automatic shotgun based on the Model 11, itself based on an 1898 design by John Browning. Shells are stored in a tubular magazine under the barrel. When a chambered shell is fired, the barrel and bolt recoiling together (for a distance greater than the shell length) re-cock the hammer, eject the ...