Certain Improvements in Gear Wheels.
Year: 1897

page_text: PROVISIONAL SPECIFICATION.
Certain Improvements in Gear Wheels.
I, SAM THOMAS RICHARDSON, of 3^, Rea Street, Birmingham, Cycle Manufac-
turer, do hereby declare the nature of this Invention to be as follows:-
--
This Invention consists of the herein described improvements in gear wheels
for transmitting power and rotary motion and this Invention consists of the
herein described improvements in the construction of the teeth or acting surfaces
of the spur or other wheels so as to facilitate their manufacture and reduce
friction.
According to one arrangement of carrying out this Invention as applied for
instance to a spur wheel and pinion, the wheel and the pinion with which it gears
are each made with rows of rounded metal studs and rows of holes alternately
across the face of the wheel, instead of the usual teeth, the said studs of the wheel
gearing with corresponding holes in the pinion and the studs of the pinion gearing
with corresponding holes in the wheel and the faces of the wheel and pinion being
in contact or nearly so. This arrangement runs very smoothly and as the studs
may be made of hardened steel the wearing parts will last a long time. The said
studs may be arranged in rows across the face of the wheel alternately with rows
of holes, or each row may consist of studs and holes alternately.
The rows of studs and holes may be arranged across the face of the wheel at
right angles to the plane of the wheel or inclined or arranged in any other manner
so that as above described the studs on the wheel gear with corresponding holes in
the face of the pinion and the studs of the pinion gear with corresponding holes
in the face of the wheel.
I apply my invention to bevel and mitre wheels and pinions similarly as above
described with reference to a spur wheel and pinion.
The wheel and pinion may each have only one row of holes and studs arranged
alternately round the wheel and pinion..
Dated this 24th day of February 1897.
CHARLES BOSWORTH KETLEY,
Agent for the Applicant.

page_text: I, SAM THOMAS RICHARDSON, of 3*, Rea Street, Birmingham, Cycle Manufac-
turer, 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 has reference to gear wheels for transmitting power and rotary
motion and this Invention consists of the herein described improvements in the
construction of the teeth or acting surfaces of the spur or other wheels so as
to facilitate their. manufacture and reduce friction.
I will describe my Invention by referring to the accompanying drawing on
which Fig. 1 is a front elevation and Fig. 2 is a side elevation of a wheel and
pinion constructed according to this Invention and shewn gearing together; Fig. 3
is a front view of a modified form of my Invention; and Fig. 4 shews one of the
studs or pegs of the said gear wheels separately.
The same letters of reference indicate the same or corresponding parts in all
the Figures of the drawing.
According to one arrangement of carrying out this Invention (see Figs. 1 and 2)
as applied for instance to the gear wheel A and pinion B both the wheel and the
pinion are made with rows of rounded metal studs and round holes alternately
arranged across the face of the wheel and across the face of the pinion the studs
of the wheel A gearing with the corresponding holes in the pinion B and the
studs of the pinion B gearing with corresponding holes in the wheel A and the
faces of the wheel and pinion being in contact or nearly so. It will be seen that
the wheel A. has twenty-four rows of alternate studs c and round holes each
row consisting of two studs c¹ and two holes d (but I do not confine myself to any
particular number) arranged across the face of the wheel and the studs c¹. and
holes alternating round the circumference of the wheel. In the same way the
pinion B is made with sixteen rows of studs and holes 2 which are respectively
similar to the studs c¹ and the holes d' on the wheel A the two studs and two
holes de forming one row across the face of the pinion B the studs &² and holes d²
also alternating round the pinion B. It will be seen that the studs c¹ on the
wheel A gear with the holes d³ of the pinion B and the studs, of the pinion B
gear with the holes in the wheel A.
This arrangement runs very smoothly and
as the studs c¹² are or may be made of hardened steel the wearing parts will last
a long time. Fig. 4 shews one of the studs c¹ separate from the wheel by which it
will be seen that it is shouldered down to the shank which passes through a
corresponding hole in the face of the wheel A and is secured by a cotter pin e
passing through a small hole in the shank 3. In case one of the studs c¹ c²
breaking or wearing out they can readily be removed and replaced by new ones.
In the modification of my Invention "illustrated by Fig. 3 instead of the rows
consisting of alternate rounded studs and round holes the studs and holes are
arranged in alternate rows. It will be seen that each alternate row consists of
four rounded studs 2 and four round holes for the studs of the wheel to
engage with.
On my drawings I have represented the rows of studs and holes as arranged
across the faces of the wheel and pinion at right angles to the plane of the wheel
and pinion but I may also arrange the rows of studs and holes inclined to the
plane of the wheel and pinion so that as above described the studs of the wheel
will engage with the corresponding holes in the face of the pinion and the studs
of the pinion will gear with corresponding holes in the face of the wheel. I apply

page_text: my Invention to bevel and mitre wheels and pinions similarly as above described
with reference to a spur wheel and pinion.
It is to be understood that I do not limit. myself to any particular number of
studs and holes in the rows.
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:
Making the faces of gear wheels with round holes and projecting rounded metal
studs arranged in rows across the faces of the wheels so that when two of the
wheels are in gear the studs of either wheel gear with the holes in the other wheel,
substantially as herein before set forth.
Dated this 26th day of November 1897.
CHARLES BOSWORTH KETLEY,
Agent for the Applicant.