A Method of and Means for Attaching the Independent Tools or Bits used in Conjunction with a Brace or other Form of Socketed Handpiece.
Year: 1899

page_text: Date of Application, 23rd Jan., 1899-Accepted, 4th Mar., 1899
COMPLETE SPECIFICATION.
A Method of and Means for Attaching the Independent Tools or
Bits used in Conjunction with a Brace or other Form of Socketed
Handpiece.
I, WILLIAM HENRY CRAINE HARRISON, of Torrens Road, Woodville, in the
Province of South Australia, Flour-Mill Proprietor, do hereby declare the nature
of my invention and in what manner the same is to be performed, to be parti-
cularly described and ascertained in and by the following statement: -
This invention relates to a method of and means for attaching and carrying a
set of independent tools commonly called bits upon a brace or handpiece provided
with a socket to take the independent tools so that the tools cannot be mislaid
and when required any one of them may be quickly secured in the socket of the
brace or handpiece ready for use.
In carrying out the invention I mount upon or attach to the brace or common
handpiece a rotatable sleeve to which the tools are hinged or attached at their
tang end so that when required to be used each tool may be turned on its hinge
and quickly affixed in the socket and when done with may be removed from the
socket and turned back on its hinge to lie along the sleeve without being detached
from the sleeve.
In order that my invention may be clearly understood I will describe the same
with reference, to the accompanying drawings, in which--
Fig. 1 is a side view of my invention applied to a carpenter's hand brace.
Fig. 2 is a view of the tang end of the sleeve and the split socket.
Fig. 3 is a central sectional view of the lower part of Fig. 1.
Fig. 4 is an end view of the split spring ring which encircles the points of
the tools.
Fig. 5 is a section of the sleeve on line a 6 of Fig. 1.
Fig. 6 is a section of the sleeve on line c d of Fig. 1.
Fig. 7 is a side view of my invention applied to a simple handpiece.
Fig. 8 is a central section of portion of the same showing in dotted lines the
raised position of the sliding cap.
Fig. 9 is a section from beneath on the line e h of Fig. 7.
Fig. 10 represents the lower end of the stem showing the tool socket.
I will first describe Figs. 1 to 6.-
In this arrangement the tools are hinged to a sleeve 1 which in turn is mounted
upon a spindle 12 so as to be freely rotatable thereon the spindle being firmly
secured to the brace.
The brace is similar to that in common use so far as general shape is concerned
but the distance between the upper and lower parts of the handle_crank is
increased sufficiently to provide space for the tool carrying sleeve. The form
of tool socket 15 is also in common use consisting essentially of a split boss
having a tapered grip to take the tang 6 of the tool 5 and adapted to be tightened
[Price 8d.1

page_text: thereon by a thumbscrew whereby the two parts of the split boss are drawn
together.
The sleeve 1 has at the end adjacent to the tool socket 15 a projecting
ring 2 with a groove 3 extending around its circumference and a number of
radial slots 4 across its outer portion and across the said groove corresponding
to the number of tools 5 to be attached. These slots divide the projecting ring
into a number of checks between which the tools are secured. Each tool has
its tang 6 extended somewhat beyond the usual length and flattened out to the
form of an eye or hook which fits between two of the said cheeks and is secured in
place by a wire 7 passing through the eye or hook and lying in the circumferential
groove 3.
The wire forms a hinge upon which the tool may be turned as desired
either for affixing in the socket of the brace for work or for returning to its
place along the sleeve when done with.
At the other end of the sleeve is another projecting ring 8 having a series of
recesses 9 corresponding in number and position to the radial slots 4 in the ring
and of various sizes and shapes to receive the points of the tools 5 as shown more
particularly in Fig. 5. In order to retain the points of the tools in position in
these recesses I provide a split spring ring or clip 10 which fits neatly upon the
ring 8 and may be rotated thereon.
By disconnecting the wire 7 any tool can be detached either for removal or for re-
placement by one of the same or another kind. In some cases I also provide at
the hinge of the tool a spring similar to that employed in a pocket knife.
The sleeve 1 is mounted so as to be capable of rotation upon a spindle 12 one
end of which is screwed into the handle of the brace and the other end is supported
by a stay 13 secured to the tool socket 15.
When one of the tools is to be used the split spring ring 10 is turned on the
ring S until the point of the tool required is adjacent to the aperture in the
ring 10.
The tool is then pulled out the tang turning on the wire 7 and the
sleeve 1 is rotated on the spindle 12 until the tool is immediately in front of and
adjacent to the slot in the face of the socket 15. It is then turned into place
through the slit in the front part of the socket and secured by closing up the two
parts in the usual way. In order to allow the tang of the tool to be turned into
the socket from the front the two parts of the socket are set to spring apart the
necessary distance and the slit in the front of the socket is made wider than
hitherto.
Referring now to Figs. 7 to 10.-
In this arrangement the tools 5 are hinged to a sleeve 1 which in turn is
mounted upon a stem 16 so as to be freely rotatable thereon.
Each of the tools 5 has at its tang end an extension or wing 6 having an
eye or hook which is secured by a wire 7 between the cheeks of a projecting ring 2
on the bottom of the sleeve as in the arrangement previously described.
The spring of the split socket 15 is obtained in this case by splitting the
stem 16 up the necessary distance so that the lower end of the sleeve requires to
be made large enough to allow of the opening of the two parts of the stem. A
collar 17 is provided on the stem to retain the sleeve at the right height above the
socket 15.
The points of the tools when lying alongside the sleeve are engaged by a loose
cap 18 slidable upon the stem 16 and provided with a spring 19 which tends to
keep the cap upon the point of the tools. When it is desired to use any one
of the tools the cap 18 is raised to the position shown in dotted lines in Fig. 8
when the tool required may be turned down upon its hinge to the socket. The
cap 18 on being released is moved to its bottom position and secured the points
of the other tools in place.
I have described the two arrangements which I prefer to employ but I desire it
to be understood that I do not confine myself thereto as other forms of sleeve
and hinge connections for the tang end of the tools and other forms of cap for
the points of the tools may be employed but

page_text: Having now particularly described and ascertained the nature of my said
invention and in what manner the same is to be performed I declare that what I
claim is:
1. The method of carrying the independent tools used in conjunction with
a brace or other form of socketed hand piece consisting in hinging the tools by
their tang ends to a rotatable sleeve mounted upon the brace or other handpiece
or upon a spindle secured thereto the tang of the tool being at the end of the
sleeve adjacent to the socket and capable of being turned thereinto substantially
as described.
2. A rotatable sleeve mounted upon a brace or socketed handpiece or upon a
spindle secured thereto and having a series of independent tools hinged thereto
by their tang ends so that the tang ends of the tools are adjacent to the socket
and may be turned thereinto substantially as described.
3. A series of independent tools hinged at the tang end to a rotatable sleeve
mounted upon a brace or socketed handpiece or upon a spindle rigidly secured
thereto the hinge being so formed and situated adjacent to the tool socket that
the tang ends of the tools may be turned thereinto as desired and the points of
the tools being protected or secured by a cap or cover at the other end of the
sleeve substantially as described.
4. In combination with a brace or other form of socketed handpiece (a) a
rotatable sleeve mounted upon the brace or socketed handpiece or upon a spindle
secured thereto (b) a series of independent tools hinged at their tang ends to
the said sleeve so that the tang ends of the tools are adjacent to the socket and
may be turned thereinto (c) a split spring ring fitting over a series of recesses
in the sleeve adapted to receive the points of the tools all substantially as
described.
5. In combination with a brace or other form of socketed handpiece (a) a
rotatable sleeve mounted upon the brace or socketed handpiece or upon a spindle
secured thereto (b) a series of independent tools hinged at their tang ends to
the said sleeve so that the tang ends of the tools are adjacent to the socket and
may be turned thereinto (c) a cap slidable upon the brace or socketed handpiece
or upon a spindle secured thereto and adapted to fit over and engage the points
of the tools all substantially as described.
Dated thi. 021 w of T
1000
HERBERT HADDAN & Co.,
18, Buckingham Street, Strand London, W.C.,
Agents to Applicant.