Improvements in the Construction and Manufacture of Sheath Knives.
Year: 1887

page_text: Improvements in the Construction and Manufacture of Sheath
Knives.
I CHARLES IBBOTSON of 58 Cambridge Street, Sheffield, in the County of York,
Cutlery Manufacturer, do hereby declare the nature of my Invention for IMPROVE-
MENTS IN THE CONSTRUCTION AND MANUFACTURE OF SHEATH KNIVES, to be as
follows:-
A Sheath Knife is a Knife provided with a strong rigid blade, with a handle or
haft, usually attached to a lanyard, and when not in use the blade is protected by a
sheath, (generally Leather) attached to, or forming part of a belt worn on the
person.
The object of my Invention is to increase the usefulness of such a sheath Knife, by
constructing it in such a manner, that, in addition to the ordinary rigid blade, it may
be fitted with another implement, instrument, or blade, made to shut, or close into the
handle or haft, like the blade of an ordinary pocket or lanyard Knife.
By way of illustration a sailor's sheath Knife may be constructed in such a manner,
that in addition to the ordinary rigid blade, it may be fitted with another implement
such as a marline spike, made to shut or close into the handle or haft, like the blade of
an ordinary clasp, pocket or Lanyard Knife.
Such a Sheath Knife in addition to being fitted with an implement (as a marline
spike as herein described) may likewise be fitted with some other implement, instru-
ment, or blade to shut up, or close into the handle or haft, and a sheath Knife so
constructed and fitted might be specially adapted for the use of others, not necessarily
sailors My invention is thus a combination of a Sheath Knife having a rigid blade,
and a clasp Knife having a blade, or blades, implement or implements, which will shut
or close, into the handle or haft, in the ordinary way.
I construct my iniproved sheath Knife, so far as the blade and tang are concerned,
in a manner somewhat similar to that already employed in the construction of ordinary
Sheath Knives, the tang however instead of being central with the handle (as would
be the case in an ordinary sheath Knife) I make continuous with the back of the blade,
the broadest at the bolster end, and tapering gradually to the other end. In this

page_text: manner room is provided for the implement or implements made to close into the
handle or haft; on the inner edge of the tang, 1 lay the spring or springs, which
actuate the last mentioned implement or implements, and I secure it or them to the
tang by means of a recess, or notch, formed on the bolster end of the tang, and by
rivet or rivets or other equivalent means; the bolster, the cap, and the scales being
formed and secured to the tang by the ordinary means at present employed in the
construction of sheath, clasp, or pocket Knives.
a
The implements or blades which are made to close into the handle of the Sheath
Knife, are likewise constructed and attached by their Tangs to the cap of the haft, in
the same or a similar manner to that generally employed for such portions of ordinary
clasp, or pocket Knives.
The essential feature of my Invention consists in constructing and manufacturing
a Sheath Knife, or Sheath Knives, which shall combine some of the features of a
clasp, pocket, or lanyard Knife, in the manner as herein described.
101
I
1007

page_text: COMI MI DT MULTIUATION.
Improvements in the Construction and Manufacture of Sheath
Knives.
I CHARLES IBBOTSON of 58 Cambridge Street, Sheffield, in the County of York,
Cutlery Manufacturer, do hereby declare the nature of my Invention for "IMPROVE-
MENTS IN THE CONSTRUCTION AND MANUFACTURE OF SHEATH KNIVES," and in what
manner the same is to be performed, to be particularly described and ascertained in and
by the following statement:-
A sheath Knife is a Knife provided with a strong rigid blade, with a handle or
haft, usually attached to a lanyard, and when not in use the blade is protected by a
sheath, (generally leather) attached to, or forming part of a belt worn on the
person.
The object of my Invention is to increase the usefulness of such a sheath Knife, by
constructing it in such a manner, that in addition to the ordinary rigid blade, it may
be fitted with another implement, instrument, or blade made to shut, or close into the
handle or haft, like the blade of an ordinary pocket or lanyard Knife.
By way of illustration a sailors Sheath Knife may be constructed in such a manner
that in addition to the ordinary rigid blade, it may be fitted with another implement
such as a marline spike, made to shut or close into the handle or haft, like the blade
of an ordinary clasp, pocket or lanyard Knife.
Such a sheath Knife in addition to being fitted with an implement, (as a marline
spike as herein described,) may likewise be fitted with some other implement, instru-
ment or blade to shut up, or close into the handle or haft, and a sheath knife so
constructed and fitted might be specially adapted for the use of others, not necessarily
sailors my
invention is thus a combination of a sheath Knife having a rigid blade and
a clasp Knife having a blade or blades, implement or implements, which will shut or
close into the handle or haft in the ordinary way.
I construct my improved sheath knife so far as the blade and tang are concerned,
in a manner somewhat similar to that already employed in the construction of
ordinary sheath knives, the tang however instead of being central with the handle
(as would be the case in an ordinary sheath knife) make continuous with the
back of the blade, the broadest at the bolster end, and tapering gradually to the
other end. In this manner room is provided for the implement or implements made
to close into the handle or haft; on the inner edge of the tang, I lay the spring or
springs, which actuate the last mentioned implement or implements, and I secure it
or them to the tang by means of a recess or notch, formed on the bolster end of the
tang, and by a rivet or rivets or other equivalent means; the bolster, the cap, and the
scales being formed and secured to the tang by the ordinary means at present
employed in the construction of sheaf, clasp, or pocket knives.
The implements or blades which are made to close into the handle of the sheath
Knife are likewise constructed and attached by their Tangs to the cap of the haft, in
the same or a similar manner to that generally employed for such portions of ordinary
clasp, or pocket Knives.
The essential feature of my Invention consists in constructing and manufacturing a
sheath knife, or sheath Knives which shall combine some of the features of a clasp
pocket or lanyard knife, in the manner as herein described.

page_text: The nature of my Invention will be better understood on reference to the accompanying
Sheet of Drawings in which,
Fig. 1, is the blade of a Sheath Knife with tang, shewing the position of the spring
used with the clasp or closing instrument such as a marline spike.
Fig. 2, is a side view of one portion of the Knife called the bolster.
Fig. 3, being a reverse or inside view of the same shewing recess by which it may
be lightened.
Fig. 4, is an end view of the same.
Figs, 5, 6, and 7, are similar views of one portion of the haft of the Knife called
the cap.
Figs. 8, 9 and 10, are side, edge and end views of the scale which is fitted on each
side of the haft.
Fig. 11 is an additional implement instrument or blade in the form of a marline
spike.
Fig. 12, is a side view of my improved sheath Knife fitted with an additional
implement in the form of a marline spike, which may be shut or closed at pleasure, the
dotted lines shew the position of the additional implement when open.
Fig. 13 is an edge view of the same.
The same letters refer to similar parts throughout the several views.
a,
is the rigid blade.
b, is the Tang made in one piece on the same.
C,
is a spring.
d, is a recess, or notch by which the spring is held in position.
e is another recess or notch used for the same purpose.
ff, is the bolster or bolsters in which,
g, is the recess by which the same is lightened.
h, h, is the Cap or Caps in which
i, is the recess for lightening the same.
, the lanyard hole and
k, a rivet or pin hole by which the additional instrument in the form of a marline
spike may be secured to the baft.
1, 1, is the scale or scales.
m, m, are rivet holes by which the same are secured to the tang of the blade.
n, is the additional instrument in the form of a marline spike and
01
is a pin or rivet hole by which the same may be secured to the haft.
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 :-
(1) The application to a Sheath Knife in addition to its ordinary rigid blade, a
marline spike or other implement instrument or blade so constructed as to open,
or shut close into the handle or haft, like the blade of an ordinary clasp, pocket or
lanyard Knife.
(2) The combination of a sheath Knife, having a rigid blade, with a clasp pocket or
lanyard Knife.
(3) The arrangement and combination of parts by which a sheath Knife fitted with
a rigid blade, may in addition to such blade be fitted with a marline spike or other
implement instrument or blade in the manner and for the purposes substantially as
herein described and illustrated.
Dated this 9th day of November 1887.
R. HEBER RADFORD,
Agent for the Applicant.