IMPROVEMENTS IN HAND DRILLS OR TOOL CARRIERS
Year: 1885

page_text: I JAMES LIGHTFOOT SHORROCK of 139 Manchester Road, Accrington in the
county of Lancaster, Mechanic do hereby declare the nature of the said Invention
for "IMPROVEMENTS IN HAND DRILLS OR TOOL CARRIERS" to be as follows:-
I construct my hand drill or tool-carrier as follows, the body of the drill is
turned true at each end, and is turned down in the centre to carry the box or
bearing of the handle of the brace, in this central part are the groove or grooves,
which are turned slightly out of the true line, and into which are a corresponding
number of pivotted tongues, ther ends clipping or gripping in the groove or
grooves when moving one way, the tongues having a certain bite in the V or other
grooves, and by reason of the grooves being out of true, the tongues bite at
different points each movement during the revolution, which thus renders them
lasting and durable, a spring or springs is used to keep the tongues in action and
retain them in their bearings; or the tongue or tongues instead of being pivotted
may form part of the handle or lever.
The tongues and grooves may be either semi-circular ✓ or other suitable recessed
form and fit into each other.
JOHN E. WALSH,
Agent for the Applicant.

page_text: in this central part are the groove or grooves, which are turned slightly out of
truth (or may be true) and into which are a corresponding number of pivotted
tongues, their ends clipping or gripping on the sides of the groove or grooves when
moving one way, the tongues having a certain bite on the V or other shaped
grooves, and by reason of the grooves being out of true, the tongues bite at different
points each movement during one revolution, which thus renders them lasting and
durable, a spring or springs is used to keep the tongues in action, and retain them
in their bearings, or the tongue or tongues instead of being pivotted may form
part of the handle or lever, the tongues and grooves may be either semicircular, V,
or any other suitable recessed form.
Fig. 1 shews a plan of my improved tool carrier.
Fig. 2 shews an elevation partly in section of Fig. 1.
Fig. 3 shews a plan of my improved tool carrier, in which the end of the handle
forms the gripping tongue.
Fig. 4 is a sectional elevation of Fig. 3.
I construct my hand drill or tool carrier as follows, the body of the drill or tool
carrier A, is turned down in the centre to carry the box or bearing B, of the
handle C of the brace, in the central part are the groove or grooves D, which are
turned slightly out of truth, or may be true, and in a recess or recesses formed in
the box B, are a corresponding number of pivotted tongues E; their ends clipping
or gripping on the sides of the groove or grooves D, the pivots of the friction
tongues in the box B being parallel to the tool holder A, and when moving one
way the tongues bite on the sides of the V or other shaped grooves D, and by
reason of the grooves being out of true the tongues bite at different points each
movement during one revolution, which thus renders them lasting and durable, a
spring or springs F is used to keep the tongues E in action, and retain them in
their bearings, or the tongue or tongues instead of being pivotted may form part
of the handle or lever C, see Figs. 3 and 4, the tongues and grooves may be either
semi-circular V, or any other suitable recessed form, the lever C, being pivotted to
the box or bearing B, the numbers of the pivotted friction tongues may be increased
as required.
Having now particularly described and ascertained the nature of the said
invention and in what manner the same is to be performed, I declare that what
I claim is :-
In hand drills or tool carriers, the employment of one or more pivotted tongues
clipping or gripping upon the sides of the grooves, preferably formed so that they
bite at different points constructed as shewn and described.