IMPROVEMENTS IN THE MANU- FACTURE OF CARPENTERS' TOOLS, CUTLERY, AND SIMILAR ARTICLES
Year: 1878

page_text: LETTERS PATENT to Charles Henry Halcomb, of the Limes, Sheffield, in the
County of York, Managing Director to Sanderson, Brothers, & Co. (Limited),
of Sheffield aforesaid, for the Invention of "IMPROVEMENTS IN THE MANU-
FACTURE OF CARPENTERS' TOOLS, CUTLERY, AND SIMILAR ARTICLES."
aled the 2nd July 1878, and dated the 3rd January 1878.
PROVISIONAL SPECIFICATION left by the said Charles Henry Halcomb at
the Office of the Commissioners of Patents on the 3rd January 1878.
CHARLES HENRY HALCOMB, of the Limes, Sheffield, in the County of York,
Managing Director to Sanderson, Brothers, & Co. (Limited), of Sheffield afore-
said. IMPROVEMENTS IN THE MANUFACTURE OF CARPENTERS' TOOLS, CUTLERY,
AND SIMILAR ARTICLES."
"
My Invention has reference to a new mode of fastening the collar or bolster to
the tang of tools, cutlery, or other articles of iron and steel manufacture to which
handles are required to be firmly fastened.
Hitherto the collar or bolster has generally formed part of the forging with the
blade or operative part of the tool and the tang, thereby rendering it necessary to
forge the blade or tool by hand. Now my Invention has for its object the forging
of the blade or tool separately, or without the collar or bolster, in order that the
blade or tool may be forged by machinery instead of by hand as usual, and the
subsequent fixing of the collar or bolster to the tang. For this purpose, the collar or
bolster is either forged or cast with an aperture in the centre of a shape cor-
responding with that of the tang to which it is to be fastened, but of slightly less
dimensions. The tang is forged into the required shape with a small shoulder,
against which the collar or bolster is intended to rest, such shoulder being formed
by reducing a portion of the tang in cross section, but leaving the tang still tapering
from heel to point.
After the blade or tool has been forged, ground, and made ready for use, the said
collar or bolster is heated, and thereby expanded as required, and being placed in

page_text: position against the shoulder on the tang it shrinks on cooling, and becomes firmly
united thereto.
My Invention is especially applicable to the manufacture of gouges, chisels, and
other carpenters' tools and cutlery.
SPECIFICATION in pursuance of the conditions of the Letters Patent filed by
the said Charles Henry Halcomb in the Great Seal Patent Office on the 2nd
July 1878.
CHARLES HENRY HALCOMB, of the Limes, Sheffield, in the County of York,
Managing Director to Sanderson, Brothers, and Company, Limited, of Sheffield
aforesaid. "IMPROVEMENTS IN THE MANUFACTURE OF CARPENTERS' TOOLS, CUTLERY,
AND SIMILAR ARTICLES."
My Invention of "Improvements in the Manufacture of Carpenters' Tools, Cutlery,
and similar Articles," has reference to a new mode of fastening the collar or bolster
to the tang of tools, cutlery, or other articles of iron and steel manufacture to which
handles are required to be firmly fastened.
Hitherto the collar or bolster has generally formed part of the forging with the
blade or operative part of the tool and the tang, thereby rendering it necessary to
forge the blade or tool by hand. Now my Invention has for its object the
forging of the blade or tool separately or without the collar or bolster, in order that
the blade or tool may be forged by machinery instead of by hand as usual, and the
subsequent fixing of the collar or bolster to the tang. For this purpose the collar or
bolster is either forged or cast with an aperture in the centre of a shape cor-
responding with that of the tang to which it is to be fastened, but of slightly less
dimensions. The tang is forged into the required shape with a small shoulder,
against which the collar or bolster is intended to rest, such shoulder being formed
by reducing a portion of the tang in cross section, but leaving the tang still
tapering from heel to point.
After the blade or tool has been forged, ground, and made ready for use, the
said collar or bolster is heated, and thereby expanded as required, and being placed
in position against the shoulder on the tang it shrinks on cooling, and becomes
firmly united thereto."
My Invention is especially applicable to the manufacture of gouges, chisels, and
other carpenters' tools and cutlery.
In order however that my Invention may be fully understood and readily carried
into effect, I will describe it with reference to the accompanying Figures, in which
are represented the parts above referred to,-
Fig. 1 represents the blade and tang with the shoulder; Fig. 2 shows the
same with the collar or bolster fixed thereto; and Fig. 3 is a face view of the collar
or bolster.
A is the blade or tool; B, the neck; C, the tang; D, a shoulder at the junction
of the tang C and the neck B, against which shoulder is fixed the collar or bolster

page_text: E, having formed in it a central aperture F, as shewn in Fig. 3. The blade or tool
A and tang C (with the neck B) are forged, and the shoulder cut or forged, as
represented in Fig. 1, and the collar or bolster E, after being heated as required, is
applied to the tang, so as to fit against the shoulder D, which collar or bolster on
cooling becomes firmly united to the tang, as required.
Having thus described the nature of the said Invention and in what manner the
same is to be performed, I hereby declare that what I claim as of my Invention is,
the mode described of fastening the collar or bolster to the tang against a shoulder or
support, whereby the blade or tool can be forged separately, and the collar or bolster
can be afterwards firmly united thereto, as herein-before described.
In witness whereof, I, the said Charles Henry Halcomb, have hereunto set
my hand and seal, the First day of July, in the year of our Lord One
thousand eight hundred and seventy-eight.
Witness,
RICHP. HOWE,
7, St. James Bow,
Sheffield,
Short-hand Clerk.
C. H. HALCOMB. (L.B.)