Year: 1886

page_text: I, FREDERIC STRICKLAND, of Boynton Hall, Bridlington, in the County of
Yorkshire, Gentleman do hereby declare the nature of this invention to be as
follows:-
The object of my invention is to construct a simple tool holder that will enable the
tool to be set all round the circle, that will hold a round, triangular, or other shaped
tool, and that will allow the tool to be sharpened only on one side.
At the end of the shank is forged a round collar, into which is inserted a cylindrical
plug. In this cylindrical plug is a slot for receiving both the tool and a wedge. On
the top of the cylindrical plug is forged a lug in which a screw works. As the screw
is turned down the wedge and the tool are drawn together.
Many arrangements can be made for carrying out the purpose of my invention, the
principle common to all being two wedges sliding in a cylindrical hole, and drawn
against each other by a screw. The tool being inserted between the wedges is thereby
fixed laterally and vertically.
W. H. MUNNS,
Agent for the Applicant.

page_text: I, FREDERIC STRICKLAND, of Boynton Hall, Bridlington, in the County of
Yorkshire, Gentleman 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 my invention is to construct a simple tool holder for lathes that will
enable the tool to be set vertically all round the circle, & that will hold a round,
triangular, or other shaped tool.
At the end of the shank of the tool holder is forged a round collar into which is
inserted a cylindrical plug. In this cylindrical plug is a slot to receive both the
cutting tool and a wedge. At one end of the cylindrical plug is forged a lug in which
a screw works. As the screw is turned in one direction the wedge and plug are
drawn together, and the wedge is also pressed against the inside of the collar.
To show more clearly how my invention is carried out, I furnish drawings in which
similar letters represent corresponding parts throughout.
Fig. 1 represents the tool fixed in the tool holder.
Fig. 2 represents the shank and collar of the tool holder in one piece.
Fig. 3 is the wedge.
Fig. 4 is the cylindrical plug.
A is the shank of tool holder.
B is the collar.
C is the tool.
D is the cylindrical plug.
E is slot in the plug.
F is the lug on plug with screw orifice.
G is orifice in lug with female screw thread.
His wedge.
J is stop on wedge.
K is male screw working in orifice G.
The tool C is placed in the slot E and the wedge H is also inserted in the slot with
the narrow end downwards. By turning the screw K the wedge H is forced tightly

page_text: against the tool C and the collar B, and holds both the tool and the cylindrical plug D
immovable.
Having now particularly described and ascertained the nature of my said invention,
and in what manner the same is to be performed I declare that what I claim is:
1st. A tool holder consisting of shank and collar for use in lathes substantially as
described.
2nd. The cylindrical plug with slot, lug, and screw, as shown in Fig. 3.
3rd. A method of vertically fixing a cutting tool in a tool holder for use with lathes
substantially as described.