Improvements in Drill Ratchet Braces.
Year: 1894

page_text: Date of Application, 19th Jan., 1894
Complete Specification Left, 28th May, 1894-Accepted, 28th July, 1894
PROVISIONAL SPECIFICATION.
Improvements in Drill Ratchet Braces.
CHARLES WICKSTEED Stamford Road Works Kettering Engineer does hereby
declare the nature of this invention to be as follows:-
The object of this invention is to adapt a drill ratchet brace, for both twist drills
with round shanks and ordinary drills with square shanks, and also to make the
brace of better, and more durable construction than is usual. To do this after
boring the socket of the brace, right size for twist drills 1 square it sufficiently to
securely hold an ordinary drill with a square shank and instead of having the rack
of the brace made in the form of a loose ring, pined or keyed on to the socket I
make it in one solid piece with the socket. The part of the handle which turns on
the socket I make in two pieces so that the lugs can go on either side of the rack in
spite of it being solid with the socket. These pieces are grooved in the shank
where they meet to keep them exactly in line, and are fastened together be means
of a bolt, screw or rivet. The little wedge used for releasing the twist drill out of
the ratchet socket is securely held under the catch spring in a taper groove made
for its reception in the shank of the handle.
Dated this 18th day of January 1894.
COMPLETE SPECIFICATION.
Improvements in Drill Ratchet Braces.
I, CHARLES WICKSTEED of Stamford Road Works, Kettering, in the County
of Northampton, 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:-
The object of this invention is to adapt a drill ratchet brace for both twist drills
with round shanks and ordinary drills with square shanks, and also to make the
brace of better and more durable construction than is usual.
To do this after boring the socket of the brace, the right size for twist drills I
square it sufficiently to securely hold an ordinary drill with a square_shank;
instead of having the rack of the brace made in the form of a loose ring pinned or
keyed on to the socket I make it in one solid piece with the socket. The part of
the handle which turns on the socket I make in two pieces so that the lugs can go
on either side of the rack in spite of its being solid with the socket. These pieces
are grooved in the shank where they meet to keep them exactly in line and are
fastened together by means of a bolt, screw or rivet.
The little wedge used for releasing the twist drills out of the socket, is securely
held under the catch spring in a taper groove made for its reception in the shank of
the bandle.
In the accompanying drawings ;—

page_text: A is the socket or stock to hold the drill; this socket has a cylindrical hole or
recess A' formed in it as shown in Figure 2 and 3 to receive the cylindrical shanks
twist drills. This hole is squared at A' or if preferred all the way up to adapt it
to receive also drills with square shanks. B is the handle, the portion or lug B' is
integral therewith and bored to allow of the passage of the socket A, the lug B³
also bored to receive the socket being separate from the handle and suitably
secured thereto say by the bolt or screw C and the tongue B' integral with the
.handle B and fitting into a groove in the back of the movable lug B as shown in
Figure 1, 2 and 4.
The ratchet wheel D is as clearly shown in Figure 2 made in the same piece
with the socket A whereby pinning and other disadvantages are obviated, while the
handle can readily be placed upon the socket by reason of the loose lug B. E is
the pawl and F the spring, both of ordinary construction and as the operation of
tools of this description is thoroughly well understood it is not necessary to describe
it here. It may however be pointed out that the screw E¹ which passes through
the pawl E screws into the loose lug B³ and may if desired be provided with a head
bearing upon or countersunk in the fixed lug B' so as to assist in retaining the
loose lug in its proper position. Or E' may be simply a pin screwed into or
projecting from the loose lug and passing through the pawl and taking a bearing in
a suitable hole in the fixed lug.
The wedge G for releasing the twist drills from the socket by driving it into the
slot H where one edge encounters the top of the twist drill, is normally carried in
the recess I formed in the side of the handle, the back end F1 of the spring F
serving to retain it there as shown in Figures 1 and 4. The spring being only held
by the screw F in the middle might turn and therefore the fixed pin Fs passing
through a hole in the spring is employed to prevent this turning.
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. The combination and arrangement of parts constituting the complete ratchet
brace substantially as described and illustrated in the accompanying drawings.
2. In a ratchet brace a socket or stock having a cylindrical hole or recess for
the reception of cylindrical-ended drills or tools but squared for the reception of
square-shanked tools.
3. In a ratchet brace a stock or socket such as A having in a piece with it a
ratchet wheel such as D double-purpose socket A' A' and slot H substantially as
.and for the purpose described and illustrated in the accompanying drawings.
4. In a ratchet brace the combination with a stock or socket having the ratchet
wheel in one piece with it of a handle such as B B' having one loose or removable
lug such as B substantially as and for the purpose described and illustrated in the
accompanying drawings.
5. In a ratchet brace securing the tool-releasing wedge by means of the pawl
spring.
6. In a ratchet brace a double-purpose pawl-spring such as F one end of which
operates the pawl and the other holds the tool releasing wedge substantially as
.described.
Dated this 26th day of May 1894.
CHARLES WICKSTEED.
W. P. Thompson & Boult,
Agents for the Applicant.