Cutting by use of rotating axially moving tool – Tool or tool with support – Having axial – core-receiving central portion
Patent
1976-10-18
1978-03-07
Bilinsky, Z. R.
Cutting by use of rotating axially moving tool
Tool or tool with support
Having axial, core-receiving central portion
144 23, 408703, B23B 5104
Patent
active
040777375
ABSTRACT:
An integral hole saw and arbor construction having a one-piece stem formed by a shank, an intermediate drive plate and a reduced neck at the lower end. The reduced neck forms an annular shoulder with the bottom surface of the drive plate. An annular end cap formed with a central hole and an outer annular shoulder, is mounted concentrically on the stem in abutting engagement with the bottom surface and annular shoulder of the drive plate, with the reduced neck extending into the central hole of the end cap. An annular weld extends between the drive plate and end cap to firmly secure and integrally join the end cap on the stem. A cylindrical saw blade is seated in the annular shoulder of the end cap and is firmly secured and integrally joined to the end cap by a second annular weld. A setscrew is threadably mounted on the drive plate for adjustably clamping a pilot drill in an axial bore which is formed in and which extends throughout the stem.
REFERENCES:
patent: 1855873 (1932-04-01), Shortell
patent: 2473077 (1949-06-01), Starbuck, Jr.
patent: 2779361 (1957-01-01), McKiff
patent: 2852967 (1958-09-01), Mueller et al.
patent: 3648508 (1972-03-01), Howgen
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