Year: 1892

page_text: This Print is in accordance with the Original Specification as it stands after
Amendment (under Section 18 of the Patents, &c. Act, 1883) as allowed by
the decision of the Comptroller General of the 30th day of July 1897.
I, JAMES GILMOUR FAULDS, of 50 North Albion Street, Glasgow, Stone Mason,
do hereby declare the nature of this invention to be as follows:-
This invention relates to masons' chisels and like tools and it has for its object
to make a single tool with interchangable bits, so as to take the place of a number
of tools, as at present.
In carrying out my invention, I make the chisel or the like with the usual
metallic shaft or handle and which is broadened or flattened out and tapered at its
lower end. The flattened out part is made with a, preferably, tapered groove. or
recess. Into the recess or groove is fitted a bit, of which there may be any
desired number to suit the different classes of work. The bit is, preferably,.
tapered so as to fit into the recess, which latter is left with end walls or projections
to prevent the bit having lateral movement, when being used.
The bits may be made with a number of teeth, like a comb, so as to do a greater
amount of work than with the usual arrangement, of chisel, with but a single
tooth or cutting edge.
The bits are, preferably, made of the best steel and are or may be secured in
place by merely driving them into the recess, or by securing them therein with a
pinching screw or with lead.
The bits can, at any time, be taken out and sharpened.
The teeth of the bits are, preferably, stamped out of the metal, or they may be
'filed.
With this invention, the trouble, incidental to masons carrying about with them
a kit of tools, is obviated, as all that is now required is for the masons to have but
a single handle or shaft and a number of different bits, which are easily carried
about, as they are small.
Tlated thin 14th day of January 1809

page_text: performed, to be particularly described and ascertained in and by the following
statement :-
This invention relates to masons' chisels and like tools, and it has for its object
to make a single handle, with one or more interchangeable and reversible bits,
serve instead of a number of tools, as at present.
And in order that my said invention may be properly understood, I have here-
unto appended an explanatory sheet of drawings, whereon
Fig. 1 shows a "drive"
thereto.
:
or "boster" tool with my improvements applied
Fig: 2 shows a drafting" tool with the improvements.
Fig. 3 shows a smaller "boster" than Fig. 1.
Fig. 4 shows a "boster" with-the bit reversed.
Fig. 5 shows, in section, a method of fitting the bit in place.
Fig. 6 is a perspective view of a bit and Fig. 7 is an end view.
Fig. 8 shows a bit in side view.
In carrying out my invention,' I make the "boster," "drafting" or other chisel
or the like with the usual metallic shaft or handle a which is broadened or
flattened out and tapered at its lower end "a" The flattened out part is made
with a groove or recess b. Into the recess or groove b is fitted a reversible bit c,
of which there may be any desired number to suit the different classes of work.
Figs. 1 and 4 show tools with grooves (dotted) running from side to side
of the parts a¹. They are similar, in section, to the groove shown at Fig. 5.
Figs. 2 and 3 show tools with recesses 62 cut in the lower ends of the tools. The
recesses as shown in dotted lines are left with end walls d, d¹ for the purpose of
preventing the bits c moving laterally when being used." The bits c, in these
cases, are preferably cut at each side, as shown in dotted lines at e Fig. 6 so as to
fit into the recesses.
The bits c may be made with a number of teeth c¹ like a comb, so as to do a
greater amount of-work than with the usual arrangement of chisel, which has but,
a single broad tooth or cutting edge. The bits c are of diamond shape in end
view as shown at Figs. 6 and 7 with both sides tapered-the upper side being
"made with but a single broad tooth or cutting edge whilst the lower side has a
'number of narrow teeth c¹. A bit made in this shape is reversible. The reversible
bit shown at Fig. 8 has teeth on both sides.
The bits which are made of the best and hardest steel are secured in place
by merely driving them into the groove or recess b.
To preserve the upper cutting edge of the bits I prefer to partially fill up the
recess with soft metal such as lead or soft copper or copper wire has shown at
Fig. 5. When the bit is driven in the soft metal helps to hold it firmly and
securely in place.
The bits can, at any time, be taken out, and reversed or sharpened.
The teeth of the bits are, preferably, stamped out of the metal. They may
however be filed out.
With this invention, the trouble incidental to masons carrying about with them
a kit of tools, is obviated, as all that is now required is for the masons to have but
a single handle or shaft or at most two or three;" and a number of bits suitable
for the different classes of work, which are easily carried about, as they are small.
7
Having now particularly described and ascertained the nature of my said inven-
tion, and in what manner the same is to be performed, I declare that what I
claim is :-
1. In masons' tools, a tool shaft or handle made with a cut out part for the
reception of a removable and reversible bit or cutter substantially as herein
.before described and shown.
2. In masons tools, the combination with a tool shaft or handle of a reversible
bit consisting of a metal "body tapered on 'both sides, the lower side, having

page_text: number of cutting teeth and the upper side a single cutting edge, substantially as
herein before set forth.
T 1
1000
H. D. FITZPATRICK,
70 Wellington Street, Glasgow, Agent.

page_text: I, JAMES GILMOUR FAULDS, of 50, North Albion Street, Glasgow, Stone Mason,
do hereby declare the nature of this invention to be as follows:-
This invention relates to masons' chisels and like tools and it has for its object
to make a single tool with interchangable bits, so as to take the place of a number
of tools, as at present.
In carrying out my invention, I make the chisel or the like with the usual'
metallic shaft or handle and which is broadened or flattened out and tapered at its
lower end. The flattened out part is made with a, preferably, tapered groove or
be
recess. Into the recess or groove is fitted a bit, of which there may
any desired
number to suit the different classes of work. The bit is, preferably, tapered so
as to fit into the recess, which latter is left with end walls or projections to prevent
the bit having lateral movement, when being used.
The bits may be made with a number of teeth, like a comb, so as to do a greater
amount of work than with the usual arrangement, of chisel, with but a single
tooth or cutting edge.
The bits are, preferably, made of the best steel and are or may be secured in
place by merely driving them into the recess, or by securing them therein with
a pinching screw or with lead.
The bits can, at any time, be taken out and, sharpened.
The teeth of the bits are, preferably, stamped out of the metal, or they may be
filed.
With this invention, the trouble, incidental to masons carrying about with
them a kit of tools, is obviated, as all that is now required is for the masons to
have but a single handle or shaft and a number of different bits, which are easily
carried about, as they are small.
ד
T
T
1000
I, JAMES GILMOUR FAULDS, of 50, North Albion Street, Glasgow, Mason,
do hereby declare the nature of this invention and in what manner the same is to be
Prize=8

page_text: performed, to be particularly described and ascertained in and by the following
statement:
This invention relates to masons' chisels, and it has for its object to make a
single handle, with one or more interchangeable and reversible bits, serve instead
of a number of chisels, as at present.
And in order that my said invention may be properly understood, I have here-
unio appended an explanatory sheet of drawings, whereon
Fig. 1 shows a drive" or boster" chisel with my improvements applied
thereto.
Fig. 2 shows a "boster" with the bit reversed.
Fig.
shows, in section, a method of fitting the bit in place.
Fig. 4 is a perspective view of a bit.
Fig. 5 is an end view.
Fig. 6 shows a bit in side view.
In carrying out my invention, I make the "boster," or other chisel with the
usual metallic handle a which is broadened or flattened out and tapered at its
lower end a¹. The flattened out part is made with a groove or recess b. Into
the recess or groove b is fitted a reversible bit c, of which there may be any desired
number to suit the different classes of work.
Figs. 1 and 2 show chisels with grooves b (dotted) running from side to side
of the parts a¹. They are similar, in section, to the groove shown at Fig. 3.
The bits c are made with a number of teeth c¹ like a comb, so as to do a greater
amount of work than with the usual arrangement of chisel, which has but a single
broad tooth or cutting edge. The bits care of diamond shape in end view as
shown at Figs. 4 and 5 with both sides tapered, the upper side being made with
but a single broad tooth or cutting edge whilst the lower side has a number of
narrow teeth c¹. A bit made in this shape is reversible. The reversible bit shown
at Fig. 6 has teeth on both sides.
The bits which are made of the best and hardest steel are secured in place by
merely driving them into the groove or recess b.
To preserve the upper cutting edge of the bits I prefer to partially fill up
the recess with soft metal such as lead or soft copper or copper wire has shown
at Fig. 3. When the bit is driven in the soft metal helps to hold it firmly and
securely in place.
The bits can, at any time, be taken out, and reversed or sharpened.
The teeth of the bits are, preferably, stamped out of the metal. They may
however be filed out.
With this invention, the trouble incidental to masons' carrying about with them
a kit of tools, is obviated, as all that is now required is for the masons to have
but a single handle or at most two or three, and a number of bits suitable for the
different classes of work, which are easily carried about, as they are small.
Having now particularly described and ascertained the nature of my said inven-
tion, and in what manner the same is to be performed, I declare that what I
claim is:
1. In masons chisels a handle made with a cut out part for the reception of a
removable and reversible bit or cutter c substantially as herein before described
and shown.
2. In masons' chisels, the combination with the handle of a reversible
bit ( Fig. 4) consisting of a metal body tapered on both sides, the lower side
having a number of cutting teeth and the upper side a single cutting edge, sub-
stantially as herein before set forth.
noted this 6th dox of T. 1900
H. D. FITZPATRICK,
70, Wellington Street, Glasgow, Agent.