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Dec. 23, 1947.
c. A. CARLSON
TOOL HANDLE
Filed Aug. 28, 1945
/2
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2,433,198
Patented Dec. 23, 1947
2,433,198
UNITED STATES PATENT OFFICE
2,433,198
TOOL HANDLE
Carl A. Carlson, Anchorage, Alaska
Application August 28, 1945, Serial No. 613,125
2 Claims. (Cl. 279-64)
2
1
The present invention relates to tools and is
more particularly concerned with an adjustable,
detachable handle for various size ñles and the
like.
The primary object of the invention is to pro
vide a tool handle which can be attached to .tools
having ordinarily, no handles, such as ñles and
the like.
Another object of the invention is to provide a
device of the character mentioned, which is read
ily adapted to tools with Shanks of various sizes
and cross-sections.
A further object of the invention is to provide
a device, of the character mentioned, of simpler
and more compact construction than is disclosed
closed on it by the rotation of handle I and the
consequent sliding of sleeve 6 forward. The pres
sure of the sleeve against the inclined shoulders
I5 on the jaws causes the jaws to clamp on the
shank of the tool while at the same time it forced
the tapered forward parts of the jaws into ñrm
engagement with the outer end of core 3, thus
securely fastening the shank of a tool in the brace,
as assembled, By using the handle as ordinarily
done with a screw driver or other tool having a
handle, it may be used with various tools. When
it is desired to remove the file or other tool the
handle is rotated in reverse.
Having thus described my invention, what I
claim as new and desire to secure by Letters Pat
entis:
1. A brace consisting of a .cylindrical core; a
sleeve slidably mounted on said core, clamping
jaws slidably mounted in said core, each of said
20 jaws being provided with an inclined side forming
hereinafter described and claimed.
a shoulder, a keeper sli’dably mounted between
In the accompanying drawings illustrating the
by prior devices.
With the foregoing and other objects and ad
vantages in view, the invention consists of the
novel construction and rarrangement of parts
said sleeve and core, means on said keeper and
in association with said jaws for maintaining the
Figure l is a side elevation of the invention.
latter in operative position, the shoulders of said
Figure 2 is a longitudinal section thereof.
Figure 3 is a side elevation of the cylindrical 25 jaws being in contacting engagement with an end
of said sleeve, and a handle rotatably mounted
core of the brace.
on said core to thereby cause said sleeve to slide
Figure 4 is a detail plan view of the jaw com
invention,
on said core and effect a wedging action on the
ponents of the brace.
shoulders of said jaws.
Figure 5 is a longitudinal section of the locking
30
2. A brace consisting of a cylindrical core pro
sleeve component of the brace.
vided with opposing longitudinal slots, one of
Figure 6 is a detail perspective view of the
which is formed with a narrower extension,
keeper component of the brace.
clamping jaws connected byv a coiled spring
Like numerals are used in the description and
adapted to separate same and provided with in
drawings to designate the same parts of construc
35 clined sides forming shoulders and transverse
tion.
grooves, a sleeve mounted to slide on said core and
Essentially the invention is an adjustable brace
provided with a pin engaging said extension slot
and it consists of an ordinary straight handle I
in said core and a longitudinal slot interiorly
of wood or other suitable material in which is
secured an interiorly threaded barrel 2 adapted 40 thereof, a keeper slidably mounted in the slot of
said sleeve and provided with lugs adapted to
to receive one end of a .tubular core 3. The core
is provided longitudinally with the oppositely dis
posed slots Il, one of which is extended in the form
engage the transverse grooves on the clamping
jaws, and a rotatable handle threaded on the
inner end of said core and adapted to impinge
and slide said sleeve on said core and effect a
of a narrow slot or recess 5, as shown in Figure 3.
A sleeve 6 is mounted on the core 3 and is 45
wedging action on the shoulders of the clamping
provided with pin 1, in its wall, projecting into
jaws.
the narrow slot 5, thus allowing the sleeve to slide
CARL A. CARLSON.
on the core. Sleeve 6 is provided with a longi
tudinal groove 8 for the reception of keeper plate
REFERENCES CITED
9 which is adapted to slide in said groove. This 50
plate 9 bears against one side of the core 3 and
The following references are of record in the
is provided at the outer end with lugs I0 which
lile of this patent:
project inwardly in relation to the core and slight
UNITED STATES PATENTS
ly beyond the slot 4 therein. These lugs l0 are
adapted to ñt in transverse grooves I I in the jaws 55 Number
Name
Date
I2 which are slidably mounted in the slots 4 of
’728,276
Muehlberg _______ __ May 19, 1903
core 3. Jaws I2 are connected at their inner ends
885,946
by coil spring I3 which keeps the jaws normally
spaced apart. The other ends of the jaws are
tapered vto fit, with wedging effect, in the outer
end of the core and they are suitably grooved as
at I4 to ñrmly bite the shank 0i a'. IiQQl When.
Number
1,044
32,640
Moore ____________ _.. Apr. 28, 1908
FOREIGN PATENTS
Country
Date
Great Britain ______ __ Jan. 9, 1884
Sweden .......... __ Mar. 22, 1910
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