improvement in Tool ficlders.
Year: 1898

page_text: improvement in Tool ficlders.
JOHN WALKER, 9, Tempest Road, Beeston Hill, Leeds, do hereby declare the
nature of this invention to be as follows:-
The tool holder to be made with a screw and sockit, for fixing the tool the
sockit to have a projection at the bottom, for the tool to rest upon.
The grove whear the tool fits in, to have a projection to fit in a grove, in the
tool, to keep it from moving out of its place, and allow it to stand clear of the
holder, by this means it keeps the holder clear of the work.
The holder is for fixing a tool in for turning plaining shaping and the like.
Dated this 10th day of December 1898.
improvement in Tool Holders.
I, JOHN WALKER, of 9, Tempest Road, Beeston Hill, in the City of Leeds,
Engineer, do hereby declare the nature of this invention and in what manner the
same is to be performed, to be particularly described and ascertained in and by
the following statement:-
The object of this invention is to arrange a tool holder suitable for use on turn-
ing, planing, shaping and like metal working machines, in such a manner that,
the tool may be readily adjusted to the required position; and the holder arranged
that it may be brought near to the work operated upon and thus give rigidity to
the cutting tool.
In describing my invention in detail, reference is made to the accompanying
sheet of drawings in which Fig. 1 represents a side elevation of a tool holder
arranged according to my invention.
Fig. 2 is a plan of the same, and
Fig. 3 a sectional plan through line a, b.
The tool holder is provided with a stem A, for securing same to the turning
lathe rest or the like, and has a groove B, cut therein, running along the stem A.
of the holder from what I term the head portion C, of the holder. Within the
head portion C, is placed a socket D, arranged with a projection E, near to one
end of same for the tool F, to rest upon, the said socket being supported by a
screw G, for engaging with the threaded hole H, of said socket.
The tool F, is by preference somewhat triangular in section, provided with
a groove on one side, into which a projection J, of the tool holder enters, the angle
on the opposite side of the tool passing behind the projection K, of said holder,
the bottom end of the tool F, resting upon the projection E, of adjustable socket D.
TD 077

page_text: On placing a tool F, between the projections J, and K, with the end resting upon
projection E, on tightening the bolt L, the tool is secured within the head portion C,
of the holder by the before mentioned projections, the groove B, on the tighten-
ing of bolt L, allowing the projections J, and K, to be brought towards each other,
and thus bind the tool F, the back portion of which is supported by the barrel of
the bolt L, passing through the head portion C, of the holder, and the flat surfaces
at M, M, of the head portion C. The distance of the out end or cutting edge of the
tool projecting beyond the holder is adjusted by the screw G. on the operation of
which, the socket D, is raised or lowered and thereby the tool accordingly.
Having now particularly described and ascertained the nature of my
invention, and in what manner the same is to be performed, I declare that what
I claim is:
A tool holder provided with projections J, and K, combined with an adjustable
socket D, for supporting the tool F, arranged and secured in position substantially
in the manner as herein before described and shown.
Dated this 25th day of April 1899.
JOHN WAUGH,
Agent, Sunbridge Chambers, Bradford.