Morse tapern.

Brit.

/ˈmɔːs ˌteɪpə/, U.S.

/ˈmɔrs ˌteɪpər/

Origin: From a proper name, combined with an English element. Etymons: proper name Morse , taper n.²

Etymology: < the name of the Morse Twist Drill and Machine Company (later Morse Cutting Tools), U.S. manufacturers of metal-cutting tools + taper n.²The company was founded in 1864 in New Bedford, Massachusetts, by Stephen A. Morse, American mechanic and inventor of the twist drill, for the manufacture of his invention.

Engineering.

A taper on a shank or socket that is one of a standard series having specified dimensions and angles.The word Morse is a proprietary name in the United States.

ΘΚΠ

society > occupation and work > equipment > tool > parts of tools generally > [noun] > shank or socket > taper on

Morse taper1894

1894 Machinery (N.Y.) Nov. p. ii (advt.) The Standard Tool Company, Cleveland, Ohio. Manufacturers of..Taps, Milling Cutters, Morse Taper Reamers.

1896 R. Grimshaw Shop Kinks 96 ‘Morse’ and ‘American’ Tapers. There are still shops which have twist-drills and sockets of the old ‘American’ taper, and sometimes it is bothersome to work them in with the ‘Morse’, as the American is 9–16 inch to the foot, and the Morse is ⁵/ ₈ inch.

1930 Engineering 25 Apr. 539/2 The centres, both of the workhead and tailstock..are 2½ in. in diameter. They have shanks with a No. 6 Morse taper.

1964 S. Crawford Basic Engin. Processes v. 114 The barrel is hollow, at one end a morse-taper bore locates the dead centre, and also provides the location for drill and reamer shanks.

1971 B. Scharf Engin. & its Lang. x. 87 Morse tapers which are numbered from 0 to 7 make it possible to interchange drills, sockets, etc. as required.

1991 Trad. Woodworking Apr. 28/3 Most lathes have both the spindle and the barrel through-bored, with the inner ends prepared to what is known as a Morse taper.

This entry has been updated (OED Third Edition, December 2002; most recently modified version published online March 2022).

单词	morse taper
释义	Morse tapern. Brit. /ˈmɔːs ˌteɪpə/, U.S. /ˈmɔrs ˌteɪpər/ Origin: From a proper name, combined with an English element. Etymons: proper name Morse , taper n.² Etymology: < the name of the Morse Twist Drill and Machine Company (later Morse Cutting Tools), U.S. manufacturers of metal-cutting tools + taper n.²The company was founded in 1864 in New Bedford, Massachusetts, by Stephen A. Morse, American mechanic and inventor of the twist drill, for the manufacture of his invention. Engineering. A taper on a shank or socket that is one of a standard series having specified dimensions and angles.The word Morse is a proprietary name in the United States. ΘΚΠ society > occupation and work > equipment > tool > parts of tools generally > [noun] > shank or socket > taper on Morse taper1894 1894 Machinery (N.Y.) Nov. p. ii (advt.) The Standard Tool Company, Cleveland, Ohio. Manufacturers of..Taps, Milling Cutters, Morse Taper Reamers. 1896 R. Grimshaw Shop Kinks 96 ‘Morse’ and ‘American’ Tapers. There are still shops which have twist-drills and sockets of the old ‘American’ taper, and sometimes it is bothersome to work them in with the ‘Morse’, as the American is 9–16 inch to the foot, and the Morse is ⁵/ ₈ inch. 1930 Engineering 25 Apr. 539/2 The centres, both of the workhead and tailstock..are 2½ in. in diameter. They have shanks with a No. 6 Morse taper. 1964 S. Crawford Basic Engin. Processes v. 114 The barrel is hollow, at one end a morse-taper bore locates the dead centre, and also provides the location for drill and reamer shanks. 1971 B. Scharf Engin. & its Lang. x. 87 Morse tapers which are numbered from 0 to 7 make it possible to interchange drills, sockets, etc. as required. 1991 Trad. Woodworking Apr. 28/3 Most lathes have both the spindle and the barrel through-bored, with the inner ends prepared to what is known as a Morse taper. This entry has been updated (OED Third Edition, December 2002; most recently modified version published online March 2022). < n.1894
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