Improvements in Ratchet Braces.
Year: 1889

page_text: Date of Application, 9th Mar., 1889
Complete Specification Left, 9th Jan., 1890-Accepted, 22nd Feb., 1890
PROVISIONAL SPECIFICATION.
Improvements in Ratchet Braces.
I, THOMAS BASS, of 9, Victoria Terrace, Green Street, Upton Park, in the County
of Essex, Boot Maker, do hereby declare the nature of this invention to be as
follows:
This invention relates to improvements in ratchet braces whereby the action of the
same is rendered continuous by the use of one handle only.
In carrying out my invention, to the handle of the ratchet brace 1 adapt two
spring pawls which take into the teeth of, the ratchet; the said pawls being so con-
nected to the handle that the movement of the handle in one direction causes one
of the pawls to push forward the ratchet, the opposite movement of the handle
causing the other pawl to move forward the ratchet, at the same time bringing the
first pawl into position for moving the ratchet on the next movement of the handle,
and so on.
L
1980
G. F. REDFERN & Co.,
4, South Street, Finsbury, London, Agents for the Applicant.
COMPLETE SPECIFICATION.
Improvements in Ratchet Braces.
I, THOMAS BASS, of 9, Victoria Terrace, Green Street, Upton Park, in the County
of Essex, Boot Maker, do bereby 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 improvements in ratchet braces of the kind in which a
continuous motion is imparted to the drill.
In carrying out my invention I adapt to the handle or lever of the ratchet brace
two spring pawls which engage with the teeth of the ratchet, the said pawls being so
connected to the handle that the movement of the handle in one direction causes
one of the pawls to push forward the ratchet, the opposite movement of the handle
cansing the other pawl to move forward the ratchet, at the same time bringing the
first pawl into position for moving the ratchet on the next movement of the handle,
and so on.
To enable my invention to be fully understood I will describe the same with
reference to the accompanying drawing, in which
Figure 1 is a plan of my improved ratchet brace, and
Figure 2 a plan partly in section.
Figure 3 is a view looking in the direction of the arrow, Figure 1.
a is the ratchet spindle having at one end a drill socket band at the other a centre
screw c.
d is the ratchet wheel which is secured to the spindle a and which is located
between the two plates e, e' which constitute a kind of frame. These plates are
secured together and the plate e is provided with an extension f forming a bandle for
facilitating the manipulation of the apparatus.
is the operating lever which is adapted to work upon a pivot h carried in the
plates e, e. This lever has at its inner end two arms i,j which carry pawls k, l
respectively.
m is a plate for holding the pivots of the pawls in place, and .n, n are springs for
maintaining the pawls in contact with the ratchet teeth.

page_text: With this construction it is obvious that when the lever g is moved in the
direction of the arrow, Figure 2, the arm will be moved towards the ratchet wheel,
the pawlk causing the partial rotation of the said wheel, and that the arm j will be
moved in the reverse direction, the pawl. 2 sliding over the teeth of the ratchet.
When the lever is moved in the reverse direction the pawl will partially rotate
the ratchet wheel, the pawl k sliding over the teeth of the said ratchet.
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 :-
The manufacture and use of the improved ratchet brace hereinbefore described and 1
illustrated in the accompanying drawing.
Dated the 9th day of January 1890.
G. F. REDFERN & Co.,
4, South Street, Finsbury, London, Agents for the Applicant.