An Improved Brace with Combined Crank and Ratchet Action.
Year: 1891

page_text: Date of Application, 20th June, 1891
Complete Specification Left, 19th Mar., 1892-Accepted, 23rd Apr., 1892
PROVISIONAL SPECIFICATION.
An Improved Brace with Combined Crank and Ratchet Action.
I, ARTHUR ALBERT TATTERSALL of 31 Dixon Avenue Crosshill Glasgow in
the County of Lanark Engineer do hereby declare the nature of this invention to
be as follows :-
This invention relates to a brace wherein is combined both crank and ratchet
actions.
The brace is adapted for boring holes of different sizes, at different speeds, and
by different leverage according to the size of hole required.
The improved brace is constructed in much the same manner as an ordinary
ratchet brace, that ratchets both ways, with feed of drill put on by a screw, and a
hole in the ratchet to receive the drill.
The end of the ratchet handle is however made hollow or of a suitable shape to
allow of the lower part of a cranked brace, or a crank, or its equivalent, being
secured to it, in any convenient manner in two positions -- 1st, to form the shape of
an ordinary crank brace with a ratchet top, and, 2nd, to secure the crank part so
as to prolong the handle of the ratchet.
The bottom end of the crank is or may be made with a hole for the bit or drill
head.
A ferrule may be placed on the centre of the crank handle.
This crank with ratchet on top can be made solid if required.
When the brace is not required as a crank brace, the lower or cranked part of
the brace can be removed from its position and secured to the ratchet arm so as to
make a long handle like an ordinary ratchet, and thus give an increased
leverage.
The crank brace is preferably used for boring small holes, the crank brace with
ratchet for medium sized holes, and the ratchet with the crank part fitted to it as
an extended handle for boring large holes, or holes through hard metal.
This combined brace answers the purpose of two braces, and thereby offers a
great advantage to workmen and others.
Dated this 19th day of June 1901
H. D. FITZPATRICK,
70, Wellington Street, Glasgow, Agent.
COMPLETE SPECIFICATION.
An Improved Brace with Combined Crank and Ratchet Action.
I, ARTHUR ALBERT TATTERSALL of 31 Dixon Avenue, Crosshill, Glasgow,
in the County of Lanark, Engineer, 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:-
This invention relates to a brace wherein is combined both crank and ratchet
actions. The brace adapted for boring holes of different sizes at different speeds
and by different leverages according to the size of hole required.
The improved brace is constructed in much the same manner as an ordinary
ratchet brace, that ratchets both ways, with feed of drill put on by a screw and a
bole in the ratchet to receive the drill. The end of the ratchet handle is, or may
be however, made.hollow or of a suitable shape to allow of the lower part of a

page_text: cranked brace, or a crank, or its equivalent, being secured to it, in any convenient
manner in two positions; 1st to form the shape of an ordinary crank brace with a
ratchet top, and 2nd to secure the crank part so as to prolong the handle of the
ratchet.
The bottom end of the crank is or may be made with a hole for the bit or drill
head.
A ferrule may be placed on the centre of the crank handle.
This crank with ratchet on top can be made solid if required.
When the brace is not required as a crank brace, the lower or cranked part of
the brace can be removed from its position, and secured to the ratchet arm so as
to make a long handle like an ordinary ratchet, and thus give an increased
leverage.
And in order that my said invention may be properly understood I have here-
unto appended an explanatory sheet of drawings, whereon,
Figure 1 is a side view of the brace, shown as being used as a brace with
ratchet top.
Fig. 2 is a side view of the brace when used as a ratchet.
Fig. 3 is another view of the brace when used as a brace with ratchet top.
Fig. 4 is a sectional detail.
Referring to the drawings whereon the same reference letters wherever repeated
indicate similar or like parts.
In Fig. the brace is shown with a ratchet a, which is preferably made to
ratchet both ways, having its arm secured to a crank b. The end of the arm f
passes through a hole in the head e of the crank and is clamped and held in
position by a pinching screw i. The bottom end d of the crank is made with a
hole for the reception of a bit or drill c.
The crank brace can be retained in a vertical position so as to bore a hole in the
block by means of a vertical metal standard or pillar which can be secured to
the bench or to a board on the bench by a bolt 7. Fitted on the standard or
pillar is a sliding arm g; the arm can be clamped in any suitable position on the
pillar by means of the pinching screw j.
The device as shown in this figure is operated like an ordinary crank brace.
When the crank brace is being used its upper ratchet end bears against the under-
side of the arm g as shown.
In Fig. 2 the brace is shown as altered so as to work like an ordinary ratchet.
In this case the drill or bit e is inserted into the ratchet part a and the crank is
fitted in a horizontal position on the end of the ratchet arm and is clamped in
place by the screw i. The head e, and also the crank b, is bored with a hole m
(see Fig. 4) for the reception of the end of the arm f. n Fig. 4 is a hole bored
through the head e at right angles to the hole m, it is for the reception of the
arm when the crank is fitted vertically as at Fig. 1. When the crank is fitted
to the end of the arm fas shown in Fig. 2 the arm is lengthened and a much
greater leverage and power is consequently given. The device as shown in this
figure is operated like an ordinary ratchet.
Fig. 3 shows a crank brace similar in all respects to that at Fig. 1 except that
the head e is, in this case, made one with the arm of the ratchet and the upper
end of the crank is inserted through the hole n. The upper end n¹ of the
may be reduced in diameter as shown.
crank
It is immaterial whether the head e is made on the arm for on the crank b.
The crank brace as shown at Figs. 1 and. 3 is preferably used for boring small
holes or holes through soft metal; the ratchet, as shown at Fig. 2, but without
the crank secured to it, for boring medium sized holes; and the ratchet with the
crank part fitted to it as an extended handle (see, also, Fig. 2) for boring large
holes or holes through hard metal.
This combined brace answers the purpose of two braces, and thereby offers a
great advantage to workmen and others.

page_text: 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. A brace having combined crank and ratchet actions, made substantially as
hereinbefore described and shown on the drawings annexed.
2. The combination with a ratchet (a), of a cranked bar (6), or its equivalent,
so made as to be capable of being fitted to the ratchet arm either as an extended
handle or as a driving crank, substantially as and for the purposes hereinbefore
set forth.
Dated this 18th day of March 1005
H. D. FITZPATRICK,
70, Wellington Street, Glasgow, Agent.