Improvements in the Construction of Adjustable Hand Wheels for Drilling Machines and the like.
Year: 1894

page_text: Date of Application, 15th Feb., 1894
Complete Specification Left, 15th Nov., 1894-Accepted, 5th Jan., 1895
PROVISIONAL SPECIFICATION.
Improvements in the Construction of Adjustable Hand Wheels for
Drilling Machines and the like.
I, JAMES CHAPMAN of Woodside Lane, in the City of Sheffield, Manufacturer,
do hereby declare the nature of my invention to be as follows:-
This invention relates to the construction of a handle that is adjustable either
nearer to, or further from the centre of the wheel so as to obtain more or less
leverage over the said wheel.
The adjustment is made with great facility, and the appliance is light combined
with strength.
In its application to a small hand drill (for which purpose it is well adapted) I
propose to construct the handle or to be more precise the arm of the handle, from
sheet steel having at one end a hole for the fulcrum pin which is upon the side of
the rim of the wheel to pass through, and projecting at a right angle from the
other end, a segment of the same metal with a segmental slot, the handle proper
being fixed at the corner between the arm and the segment.
A screw threaded stud fixed upon the wheel passes through the said slot, and a
wing or milled cut screwed upon it, serves to grip the segment at any desired
point. I do not confine myself to any particular position of the arm upon or in
relation to the wheel except in so far that it may be regulated in its distance from
the centre thereof.
The segment instead of having a slot, may itself pass bodily through a boss or
the like and be fixed by a screw or equivalent.
1
C
1904
ROBT. F. DRURY, C.P.A.,
Bank Buildings, George Street, Sheffield, Agent for Applicant.
Improvements in the Construction of Adjustable Hand Wheels for
Drilling Machines and the like.
I, JAMES CHAPMAN of Woodside Lane, in the City of Sheffield, Manufacturer,
do hereby 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 the construction of a handle for drilling machines that
is adjustable cither nearer to, or further from the centre of the wheel so as to
obtain more or less leverage over the said wheel.
The adjustment is made with great facility, and the appliance is light and
strong.
In its application to a small hand drill (for which purpose it is well adapted)
and which is illustrated in the annexed sheet of drawings, I propose to construct
the handle or to be more precise the arm of the handle A, from sheet steel having
at one end a hole for the fulcrum pin B, (which is upon the side of the rim of the

page_text: wheel W,) to pass through, and projecting at a right angle from the other end, a
segment C, of the same metal with segmental slot D, the handle proper E, being
fixed at the corner between the arm and the segment C.
A screw threaded stud F, fixed upon the wheel passes through the said slot, and
a wing or milled nut G, screwed upon it, serves to grip the segment C, at any
desired point.'
I do not confine myself to any particular position of the arm upon or in relation
to the wheel W, except in so far that it may be regulated in its distance from the
centre thereof.
The segment G, instead of having a slot D, may itself pass bodily through a
boss or the like and be fixed by a screw or equivalent.
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 :-
:
1. In combination with a hand drill the improved adjustable hand wheel, as
herein before described and substantially as shown in the drawings.
2. A hand wheel W, for drilling machines, having an arm A, with a segmental
arm C, and set screw G, or its equivalent for the purpose specified and substantially
as described and shown in the annexed drawings.
i
Dated the 14th day of November 1894.
ROBT. F. DRURY, C.P.A.,
Bank Buildings, George Street, Sheffield, Agent for Applicant.