Ads
related to: klein interchangeable screwdriver
Search results
Results from the WOW.Com Content Network
Klein Tools was founded in 1857 in Chicago, Illinois by German immigrant Mathias Klein. [8] The first tool Klein made was a pair of side-cutting pliers for a telegraph lineman. [9] The company grew as the telegraph and eventually telephone and electrical industries grew after the Civil War by adding 100 types of pliers in the 1910s.
The company marketed tools under the "XCEL" and, later, "Xcelite" brand names. [3] John N. Petre (1891-1952) held six patents assigned to Park Metalware. Among his important inventions was the interchangeable shaft screwdriver U.S. patent 2,476,762.
A typical simple screwdriver has a handle and a shaft, ending in a tip the user puts into the screw head before turning the handle. This form of the screwdriver has been replaced in many workplaces and homes with a more modern and versatile tool, a power drill, as they are quicker, easier, and can also drill holes. The shaft is usually made of ...
Slot screw drives have a single horizontal indentation (the slot) in the fastener head and is driven by a "common blade" or flat-bladed screwdriver.This form was the first type of screw drive to be developed, and, for centuries, it was the simplest and cheapest to make because it can just be sawed or filed.
English: Xcelite interchangeable shaft screwdriver. This exploded view shows the three different shafts that fit it: one has #3 Phillips and 5/16" slotted, one has #2 Phillips and 1/4" slotted, and one has #1 Phillips and 3/16" slotted.
1939, the first torque screwdriver was patented. 1949, the company patented a ring-ratchet system with interchangeable tool inserts. 1953, a design patent was registered for the multifunctional "3=1" combined open-jaw and joint-socket spanner. Saltus in former times. 1957, Max Forst Werkzeugfabrik was renamed Saltus-Werk Max Forst KG.
Ads
related to: klein interchangeable screwdriver