Year: 1887

page_text: Date of Application, 13th Dec., 1887
Complete Specification Left, 11th Sept., 1888
Complete Specification Accepted, 12th Oct., 1888
RESERVE
I, JAMES MAC GREGOR, of the firm of P. and R. Fleming & Co., of 29 Argyle Street,
Glasgow, in the County of Lanark, North Britain, Ironmongers, and Merchants, do
hereby declare the nature of this Invention to be as follows, that is to say :--
My said Invention relates to grass mowers of the kind known as Philadelphia Lawn
Mowers, and has for its objects to render such mowers capable of operating on verges
or edgings in a better manner and to make the driving action more efficient for all
mowing operations.
grass
In a mower of the kind referred to, a set of helical. blades on a rotating cutter shaft
act in concert with a straight blade fixed to the framing. The cutter shaft is driven
by means of pinions on its ends gearing with internal teeth formed in two wheels
which run on the ground and are corrugated externally. These wheels are beyond
the edges of the width which the cutting blades operate on; and when a verge or
edging is being operated on only one of the wheels can drive, whilst on a strip of
only as wide as the space operated on by the cutting blades neither wheel can act
properly. A small wooden roller is adjustably fitted to the framing to run on the
grass and serve as a means of regulating the position of the machine and level of cut.
By my present Invention 1 have the shaft of the small roller geared to the cutter
shaft; and I make the roller, by preference, of metal and corrugated so as to derive
driving power from rolling on the ground. The gearing which connects the roller
shaft and the cutter shaft may be applied on both sides of the machine or on one side
only; and in each case it will consist of a spurwheel on the roller shaft gearing with a
pinion which is centered on a stud and is made in one piece with a spurwheel gearing
with a spurwheel or pinion on the cutter shaft, and which last mentioned wheel may
be made in one piece with the pinion on the cutter shaft that is in gear with the teeth
of the side wheel. The gearing is covered with a metal shell to prevent it from
becoming choked with grass or earth. The roller has its bearings adjustable in curved
slots in the frame sides such slots being concentric with the stud carrying the inter-
mediate wheels.

page_text: With this improved arrangement the roller will drive the cutter shaft when either
or both side wheels do not touch the ground, that is when operating on a verge or
edging or narrow space, and the roller will give additional driving power on lawns or
broad surfaces.
DR 101
בד
1007
EDMUND HUNT,
Applicant's Agent.
I, JAMES MAC GREGOR, of the firm of P. & R. Fleming & Co., of 29 Argyle Street,
Glasgow, in the County of Lanark, North Britain, Ironmongers, and Merchants, do
hereby declare the nature of this invention and in what manner the same is to be per-
formed, to be particularly described and ascertained in and by the following statement,
that is to say :-
My said Invention relates to grass mowers of or similar to the kind known as
Philadelphia Lawn Mowers, and has for its objects to render such mowers capable of
operating on verges or edgings in a better manner, and to make the driving action
more efficient for all mowing operations.
A mower of the kind referred to or as much of it as is necessary for the present
purpose is shown on an accompanying sheet of explanatory drawings as having my
improvements applied to it, figure, 1, being a side elevation as with one wheel and a
cover which ordinarily protects the gearing removed, whilst figure, 2, is a vertical
section.
In this mower a set of helical blades, A, on a rotating cutter shaft, B, act in concert
with a straight blade, C, fixed to the framing, D. The cutter shaft, B, is driven by
means of pinions, E, F, on its ends gearing with internal teeth formed in two wheels, G,
which run on the ground and are corrugated externally, being mounted on studs on
the framing, D. The wheel, G, on the near side is supposed to be removed in
figure, 1, as well as in figure, 2. The wheels, G, are beyond the edges of the width
which the cutting blades, A, operate on; and when a verge or edging is being
operated on only one of the wheels can drive, whilst on a strip of grass only as wide
as the space operated on by the cutting blades neither wheel can act properly. A
small roller, H, (hitherto commonly made of wood) is adjustably fitted to the framing
to run on the grass and serve as a means of regulating the position of the machine and
level of cut.

page_text: :
By my present Invention I have the shaft, J, of the small roller, H, geared to the
cutter shaft, B, and I make the roller, H, by preference of metal and corrugated, as
shown, so as to derive driving power from rolling on the ground. The gearing which
connects the roller shaft, J, and the cutter shaft, B, may be applied on both sides of
the machine or on one side only and in each case it consists of a spurwheel, K, on
the roller shaft, J, gearing with a pinion, L, (indicated by dotted lines in figure, 1.)
which is centered on a stud and is made in one piece with a spurwheel, M, gearing
with a spurwheel, N, which is made in one piece with the pinion, E, on the cutter
shaft, B.
A metal shell (not shown) is provided for covering the gearing to prevent
it from becoming choked with grass or earth. The small roller, H, has its bearings in
metal plates, P. Q, which are made with curved slots through which the screw bolts, R,
are passed for securing them to the main frame, D, the curved slots allowing of the
plates, P, Q, and with them the relative position of the small roller, H, being adjusted
without the wheels, K, and L, getting out of gear.
With my improved arrangement as described the small roller, H, will drive the
cutter shaft, B, when either or both side wheels, G, do not touch the ground that is-
when operating on a verge or edging or narrow space; and the roller, H, will give
additional driving power on lawns or broad surfaces.
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
In grass mowers connecting the cutter shaft by gearing with the small roller
extending across the machine as well as with the side wheels, substantially as and for
the purposes herein before described.
Dated this Tonth day of Santambar 1900