GB Patent: 140,722 - Improvements in Built-up Cutters for Use in Milling Machines or Other Machine Tools


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GB Patent: GB-140,722

Improvements in Built-up Cutters for Use in Milling Machines or Other Machine Tools

Patentees:

Alfred Herbert (exact or similar names) - Coventry, Warwickshire, England

Arthur Harold Lloyd (exact or similar names) - Coventry, Warwickshire, England

USPTO Classifications:

Tool Categories:

metalworking machines : milling machines : milling machine tools

Assignees:

None

Manufacturer:

Alfred Herbert Ltd. - Coventry, Warwickshire, England

Witnesses:

none listed

Patent Dates:
Applied:	Nov. 11, 1919
Granted:	Apr. 01, 1920

Patent Pictures:

Espacenet patent
Report data errors or omissions to steward Joel Havens
"Vintage Machinery" entry for Alfred Herbert Ltd.

Description:

Abstract:

Milling-cutters; boring-bars.-Cutters for use in milling, and for boring-bars, &c. have one face of each of the inserted' blades flat and serrated to engage a corresponding face on a locking wedge. As applied to a surfacing cutter, the inserted blades A, Figs. 1 and 2, are made from stock of the section shown in Fig. 3, and are secured in inclined holes in the body that is correspondingly coned at B<2>. The serrated flat face A<2> is engaged' by a corresponding face C<3> on a conical wedge secured by a screw D. In a modification, Fig. 4. flat blades are secured in transverse slots milled right across the body.