Search results
Results from the WOW.Com Content Network
Lever mortising machine, now disused and placed as a monument. The square chisel mortiser (also called hollow chisel mortiser), similar to a drill press in many respects, combines the cutting of a four-sided chisel with the action of a drill bit in the center. The bit clears out most of the material to be removed, and the chisel ensures the ...
In 1919 the Pennimans filed an unfair trade lawsuit against Eames (Atlas Press Co. v. Eames), claiming rights over the trademark, patent and improved design.The case was argued in front of the Michigan Supreme Court, which ruled that Eames had to cease use of the trademark, but refusing the transfer of the improved press to the Atlas company.
Below is a comprehensive drill and tap size chart for all drills and taps: Inch, imperial, and metric, up to 36.5 millimetres (1.44 in) in diameter. In manufactured parts, holes with female screw threads are often needed; they accept male screws to facilitate the building and fastening of a finished assembly.
1932 First Universal Milling Attachment shipped (to Atlas Tool of Bridgeport) 1938 Aug. 8, First Bridgeport Turret Milling Machine shipped (to Precision Castings Corp. of Syracuse, N.Y.) 1939 Incorporation of Bridgeport Machines; 1941 Addition to Factory – 2,400 square feet; 1944 Addition to Factory – 4.200 square feet
The Shopsmith is a lathe-based multi-tool that uses a single motor to perform lathe, tablesaw, sanding, and drill press functions. Variations include horizontal boring and disc sander . The original Shopsmith 10E and 10ER were invented by Dr. Hans Goldschmidt [ 1 ] of Albany, CA , in 1947; made by the Magna America Corporation in Berkeley, CA ...
Egyptian stool with through tenons, c. 1991–1450 BC The mortise and tenon joint is an ancient joint. One of the earliest mortise-tenon structure examples dates back 7,000 years to the Hemudu culture in China's Zhejiang Province. [3]
A mortise gauge or mortice gauge is a woodworking tool used by a carpenter or joiner to scribe mortise and tenon joints on wood prior to cutting. Mortise gauges are commonly made of hardwood with brass fittings.
A drill chuck is a specialised self-centering, three-jaw chuck, usually with capacity of 0.5 in (13 mm) or less, and rarely greater than 1 in (25 mm), used to hold drill bits or other rotary tools. This type of chuck is used on tools ranging from professional equipment to inexpensive hand and power drills for domestic use.