IMPROVEMENTS IN RATCHET BRACES
Year: 1884

page_text: We BENTLEY GODFREY 16 Lancing Road Mechanic, and RICHARD GARRATT
Bramhall Lane Licenced Victualler both of Sheffield in the County of York do
hereby declare the nature of our said Invention for IMPROVEMENTS IN RATCHET
BRACES" to be as follows:-
Our Invention relates to improvements in the construction of ratchet braces,
the object being to simplify the mechanism and reduce the cost of manufacture.
In carrying out our Invention we make the handle or body of the ratchet brace
with an opening to receive and enclose the ratchet wheel. This opening instead of
being made to correspond to the diameter of the ratchet wheel as is usual in
enclosed ratchet braces, is made somewhat larger, and on the inside surface opposite
to the handle, one or more teeth (preferably four) are cast or otherwise formed, or
attached, which correspond with those on the ratchet wheel; and into which they
are drawn and withdrawn by the action of the handle, when the reciprocating
motion is imparted to it by the operator when drilling a hole.
The ratchet wheel which is attached to the feed screw and drill nozzil as usual is
retained in the handle by means of a washer or collar on either side of the handle.
When the handle is moved from the operator the teeth on the handle disengage
from the ratchet wheel, and allow the handle to be turned round, but on the
movement being reversed and the handle pulled towards the operator, the teeth on
the handle at once engage with those on the wheel and the drill is turned round.
The teeth for the handle may be made on a détached plate and let into the
handle, and they may be permanently fixed, or made to slide in a recess, and forced
forward by a spring, or a spring may be applied.. to the opposite side of the ratchet
wheel, to aid in keeping the teeth in gear.
4
L

page_text: We BENTLEY GODFREY of Jessop Street, Mechanic, and RICHARD GARRATT of
Sheaf House, Licenced Victualler, both of Sheffield in the County of York do
hereby declare the nature of our Invention for IMPROVEMENTS IN RATCHET
BRACES and in what manner the same is to-be performed, to be particularly
described and ascertained in and by the following statement :—
Our Invention relates to improvements in the construction of ratchet braces the
object being to simplify the mechanism of such tools, and consequently reduce the
cost of manufacture.
And in order to make our Specification clear, and that our Invention may be
fully understood, we have annexed a Sheet of Drawings to which we shall refer, in
which the same letters indicate similar parts in any of the Figures.
Fig. 1, represents a ratchet brace of usual configuration, fitted upon our improved
plan. Fig. 2. 3. 4 and 5, show the interiors of such ratchet braces, Fig. 2, being
the most simple form of our improvements, and Fig. 3, 4, 5, modifications of same.
In carrying out our Invention, we make the body A of the ratchet brace, with
an opening B, to receive and enclose the ratchet wheel C. This opening B instead
of (as is usual) being made to correspond to the diameter of the ratchet wheel, is
made somewhat larger, and on the inside surface opposite to the handle, one or
more teeth (preferably four) are cut, cast, or otherwise formed, or attached at D,
corresponding with those on the ratchet wheel, and into which they are drawn, and
from which they are withdrawn by the action of the handle E, when the
reciprocating motion is imparted to it by the operator when drilling a hole.
The ratchet wheel is attached to the feed screw F, and drill nozzle G, as usual,
and is retained in the body A by means of a washer H and H³, on either side of
the body.
If desired a spring slide I, Fig. 3, may be used to keep the teeth in gear, or the
teeth may be formed upon a separate piece of metal, such as steel, and let into a
recess formed in the body, being stationary as shown in Fig. 5, at K. or moveable
as in Fig. 4. When the handle is moved from the operator, the teeth on the body
or handle disengage from the ratchet wheel, and thus allow the handle alone to be
turned partially round, but on the operator reversing the movement and pulling
the handle towards him, the teeth at once engage with the wheel, and the drilling
tool is revolved.
Having now described and fully ascertained the nature of our said Invention
and the method of carrying it into effect, we declare that what we consider to be
novel aud original and claim as our Invention, is—
The construction of ratchet drilling braces substantially as hereinbefore
described and as illustrated.