Search results
Results From The WOW.Com Content Network
Originally named Allen Manufacturing Company, the business produced hexagonal set screws and wrenches to fasten them. The terms "Allen wrench" (American English) and "Allen key" (British English) [3] are derived from the Allen brand name and refer to the generic product category "hex keys". W.G. Allen [4] filed the first related patent in 1909 ...
A hex key (also, hex wrench, Allen key and Allen wrench or Inbus) is a simple driver for bolts or screws that have heads with internal hexagonal recesses ( sockets ). Hex keys are formed from a single piece of hard hexagonal steel rod, having blunt ends that fit snugly into similarly shaped screw sockets. The rods are bent to 90º, forming two ...
An adjustable spanner (UK and most other English-speaking countries), shifting spanner (Australia and New Zealand), English wrench (Turkey) or adjustable wrench (US and Canada) is any of various styles of spanner (wrench) with a movable jaw, allowing it to be used with different sizes of fastener head (nut, bolt, etc.) rather than just one fastener size, as with a conventional fixed spanner.
A monkey wrench is a type of smooth-jawed adjustable wrench, a 19th century American refinement of 18th-century English coach wrenches. It was widely used in the 19th and early 20th century. It is of interest as an antique among tool collectors and is still occasionally used in practice. More broadly, a monkey wrench may be a pipe wrench or any ...
Language links are at the top of the page. Search. Search
British Standard Whitworth. British Standard Whitworth ( BSW) is an imperial-unit -based screw thread standard, devised and specified by Joseph Whitworth in 1841 and later adopted as a British Standard. It was the world's first national screw thread standard, and is the basis for many other standards, such as BSF, BSP, BSCon, and BSCopper .
1500-800 BCE [1] Shakhas. Vedic school. Each school taught a Veda in a specific way, over time evolving specific styles and emphasis, based on how / by whom / where it was taught. Brahmanas. Commentary and elaboration on vedas and description of religious procedures. 900-500 BCE [2] Upanishads.
Monkey and Stillson wrenches. Daniel Chapman Stillson (March 25, 1826 – August 23, 1899) was an American inventor. He invented the modern adjustable pipe wrench. Biography. He was born March 25, 1826, in Durham, New Hampshire. He was the son of William Stillson and Nancy Chapman. He married Ellen Raynes Davis on April 18, 1855.