Improvements in Braces suitable for Use with Boring Bits, Drills, and other such like Tools.
Year: 1886

page_text: Date of Application, 14th Dec., 1886
Complete Left, 20th Dec., 1886.
Complete Accepted, 15th Feb., 1887.
PROVISIONAL SPECIFICATION.
Improvements in Braces suitable for Use with Boring Bits, Drills,
and other such like Tools.
We THOMAS NEWEY and JOSEPH NEWEY Boring tool Manufacturers Allison Street
Birmingham in the County of Warwick do hereby declare the nature of our invention
for IMPROVEMENTS IN BRACES SUITABLE FOR USE WITH BORING BITS DRILLS AND OTHER
SUCH LIKE TOOLS to be as follows:-
This invention consists in the utilization and adaptation of a double screw thread in
lieu of the single screw thread now ordinarily used: we moreover claim as a part of
our invention the utilization of a treble screw or a screw of any number of threads
beyond the ordinary single screw.
We will now more particularly describe the nature of our invention reference being
made to the accompanying drawings.
Figures 1, 2, 3 and 4 shew the nose end of a hand brace broken off and separated
from the main portion of the complete brace at the line A B figure 5.
Figure 1 represents the ordinary arrangement of single thread.
Figure 2 represents a double thread.
Figure 3 represents a treble thread.
Figure 4 represents a view partly in section and partly in elevation.
Figure 5 represents a complete hand brace ready to receive the clips and adjusting
nut.
Figure 6 represents the nose end of a rachet brace provided with a single screw
thread.
Figure 7 is a broken part of the nose end of a rachet brace provided with a duplex
thread.
Figure 8 represents the nose end of a rachet brace provided with a triplex screw
thread.
Figure 9 represents an ordinary adjusting nut.
Figure 10 represents a pair of ordinary clips or clams usually used inside the nose:
a space for the same is represented at figure 4.
Figure 11 is a plan of figure 10.

page_text: The advantage to be obtained in the utilization of a double or duplex thread on the
nose of a brace, is that in putting in a centre bit, a quill bit, or a drill, or any other
kind of tool usually used in a hand brace or rachet brace, the said tool can be fixed in
position tightly by means of the ordinary nut represented at figure 9 in one half the
time that it would be under the ordinary method of utilizing a single screw, that is to
say the clips figure 10 being placed in the slot a figure 4 and a quill bit passed into
the space 6 of the clips, and the adjusting nut figure 9 then screwed tightly over the
threaded part c, the brace would be ready for the use of a carpenter to bore a hole by
means of the bit. The workman in the course of his work wishing to remove the quill
bit, would in the ordinary manner hold the brace in position by grasping the nut with
one hand, and then with the other hand revolve the nose end of the brace inside the
nut, to raise the said nut off the faces dd' of the clips, and thus release the quill bit.
Having slackened the adjusting nut, the carpenter would remove the quill bit and
put in some other tool, for instance a centre bit or a drill, he would then rotate the
nose of the brace inside the adjusting nut, back into its former position, to grip the
tapered ends of the clips figure 10 at d d¹.
:
By the utilization of my duplex thread to the nose end of a brace the carpenter in
revolving the adjusting nut as hereinbefore described would raise it one fourth of an
inch in the same space of time that he would by the utilization of the ordinary single
thread raise the before mentioned nut one eighth of an inch in a like manner after
having put in the centre bit or drill, he would rotate the adjusting nut back into its
former position. Thus we have clearly demonstrated the fact that by the utilization
of a duplex thread in the manner herein before described, a great saving of time is
effected.
Although we do not consider the utilization of a triplex thread to be of such practical
utility as that of a duplex thread, nevertheless we in some cases utilize a triplex thread.
We also in some cases utilize a screw with a four fold or any other multiplication of
threads, beyond the ordinary single thread, and in the fact of so doing consists our
invention for the purpose described.
ALFRED WILLIAM TURNER,
Cobden Buildings, Corporation Street,
Birmingham,
Agent for the Applicants.

page_text: with one hand and then with the other hand revolve the nose end of the brace inside
the nut, to raise the said nut off the faces dd¹ of the clips, and thus release the
quill bit.
Having slackened the adjusting nut, the carpenter would remove the quill bit and
put in some other tool, for instance a centre bit or a drill, he would then rotate the
nose of the brace inside the adjusting nut, back into its former position, to grip the
tapered ends of the clips figure 10 at a d¹.
By the utilization of my duplex thread to the nose end of a brace, the carpenter in
revolving the adjusting nut as herein before described, would raise it one fourth of an
inch in the same space of time that he would by the utilization of the ordinary single
thread, raise the before mentioned nut one-eighth of an inch in a like manner after
having put in the centre bit or drill, he would rotate the adjusting nut back into its
former position. Thus we have clearly demonstrated the fact that by the utilization
of a duplex thread in the manner hereinbefore described, a great saving of time is
effected.
Although we do not consider the utilization of a triplex thread to be of such
practical utility as that of a duplex thread, nevertheless we in some cases utilize a
triplex thread. We also in some cases utilize a screw with a four fold or any other
multiplication of threads beyond the ordinary single thread, and in the fact of so doing
consists our invention for the purpose described.
Having now particularly described and ascertained the nature of our invention and
in what manner the same is to be performed we declare that what we claim is
1st. The invention as illustrated and described.
2nd. The utilization of a double screw thread on the nose end of a brace, for the
purpose set forth in the specification.
3rd. On the end of a brace the utilization of a screw with a treble thread, or a
thread of any number beyond the ordinary single thread.
ALFRED WILLIAM TURNER,
Cobden Buildings, Corporation Street,
Birmingham,
Agent for the Applicants.