AN IMPROVED COMBINED FERRULE AND BOLSTER FOR CHISELS AND GOUGES
Year: 1884

page_text: We JAMES BALL, of Hillsbro' Mount, Manufacturer JAMES HARVEY RAWSON,
and FREDERICK PERCY RAWSON both of the Globe Cutlery Works, Carver Street,
Manufacturers all of Sheffield in the County of York do hereby declare the nature
of our said invention for AN IMPROVED COMBINED FERRULE AND BOLSTER FOR
CHISELS AND GOUGES, to be as follows:-
Our invention of an improved combined ferrule and bolster for chisels and gouges
has reference to such chisels and gouges as at the present time are made with
bolsters or sockets forged upon them; our object being to dispense with such
forged bolsters or sockets, and thereby reduce the cost of manufacture.
In carrying out our invention we make the combined ferrule and bolster of any
desired material, but preferably we cast them in malleable iron, the bolster being
In fact, a thick cap closing one end of the ferrule with the exception of a square or
oblong hole to receive the tang of the tool.
The ferrule is fitted tightly upon the end of the handle.
Instead of chisels and gouges with bolsters or shoulders or sockets forged upon
them, we taper the tangs of such tools so that when driven through the hole into
the wood handle, they will fit tightly into the correspondingly shaped hole in the
cap of the ferrule, which thus forms a bolster, strengthening both the tool and the
wood handle:
For socket chisels and gouges the ferrule is lengthened so as to take a firmer
hold of the wood handle.

page_text: We JAMES BALL, of Hillsbro' Mount, Manufacturer JAMES HARVEY RAWSON,
and FREDERICK PERCY RAWSON both of the Globe Cutlery Works, Carver Strect
Manufacturers, all of Sheffield in the County of York do hereby declare the nature
of our invention for AN IMPROVED COMBINED FERRULE AND BOLSTER FOR
CHISELS AND GOUGES and in what manner the same is to be performed, to be
particularly described and ascertained in and by the following statement, that is
to say :-
Our invention of an improved combined ferrule and bolster for chisels and gouges
has referrence to such chisels and gouges as at the present time are made with
bolsters, or with sockets forged upon them; our object being to dispense with such
forged bolsters and sockets, and thereby reduce the cost of manufacture.
To render our invention clear, we annex a sheet of drawings illustrating the
combined ferrule and bolster, and its adaptation to a chisel.
Fig. 1, represents a complete chisel with the improved ferrulo.
Fig. 2, edge view of same, part in section.
Fig. 3, represents a combined ferrule and bolster with elongated ferrule part.
Fig. 4, represents a piece of steel from which the tool is made.
In carrying our invention into practice we make a chisel (for example) in the
following manner; we take a piece of steel of suitable width and thickness, and of
sufficient length for two chisels, we taper each end preferably by means of eccentric
rolls, and then punch out the hollows A Fig. 4. The material is now cut in two at
the line B, B, the part C, being drawn out to form the tang D, the chisel being
finished in the usual manner.
We make the combined ferrules and bolsters W of any suitable material, but we
prefer to cast them in malleable iron.
The bolster portion E, is made of great thickness, and is provided with a tapered
hole G, through the centre to receive the tang D, of the chisel; the ferrule portion F
is of the same continuous material as the bolster E, and is made to fit upon the end
of the handle H as shown in Fig. 2, and for some purposes this portion may be
elongated as shown in Fig. 3.
When the handle H is securely fixed into the ferrule, the tapered point of the
tang is driven (through the hole G) into the handle, the combination forming a very
strong chisel well adapted for the work it has to perform.
Having now particularly described and ascertained the nature of our said
invention and in what manner the same is to be performed and carried into
practice, we declare that what we claim is
(1.) In the construction of chisels and gouges, the use of a combined ferrule and
bolster, such bolster portion being of sufficient depth to give suitable support to
1

page_text: the blade, and to enable the usual bolster to be dispensed with, as hereinbefore
described and illustrated.
(2.) A combined ferrule and bolster for the handles of chisels and gouges, (the
term "bolster," being used in contradistinction to the word "end-plate"-such
end plates of thin material being in use with ferrules, but only as a covering or
protection) substantially as herein before described and illustrated.