Improvements in or connected with Lawn Mowers.
Year: 1893

page_text: Date of Application, 28th Feb., 1893
Complete Specification Left, 25th Nov., 1893-Accepted, 30th Dec., 1893
PROVISIONAL SPECIFICATION.
Improvements in or connected with Lawn Mowers.
I, WILLIAM DYSON WANSBROUGH, of St. Catherines, Lincoln, in the County
of Lincoln, Engineer, do hereby declare the nature of this invention to be as
follows:--
The object of my invention, is to fit a lawn mower with simple light and effective
appliances operable from near the handles of the machine, for elevating, or
depressing the frame and cutters, and regulating the height of cut; also in
constructing the front rollers of a material which will prevent the adhesion of dirt
and mould.
According to my invention I mount the front roller or rollers upon a spindle or
axle attached to one arm of a bell crank lever, which is pivoted to the main frame
or an extension of the main frame, or of the slotted bracket usually present in
existing machines, the other arm having a long rod which is carried back to near
the handles of the machine where it is connected to a fastening device such as a
clamp wheel arranged to ride in a slot of the handle bar for easy adjustment of the
front roller by operating the rod and bell crank lever for raising and lowering the
fore part of the machine, and the cutters. An ordinary grass roller at the rear of
the machine serves as the fulcrum or pivot for the frame when the front end is
raised, or lowered for regulating height of cut.
For preventing adhesion of clods, dirt, and mould to the rollers, I purpose..,
forming them of glass, porcelain, enamelled iron, or any other hard smooth and
slippery material which will offer no holding surface, so that they will remain clean
even when travelling over wet or loose ground.
Dated this 20th day of Wah 1902
H. GARDNER,
Patent Agent, 166, Fleet Street, London,
Agent for the said William Dyson Wansbrough..
COMPLETE SPECIFICATION.
Improvements in or connected with Lawn Mowers.
1, WILLIAM DYSON WANSBROUGH, of St. Catherines, Lincoln, in the County
of Lincoln, Engineer, 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 :-
The object of my invention is to fit a lawn mower with simple light and effective
appliances operable from near the handles of the machine for elevating or depressing
the frame and cutters, and regulating the height of cut; also in constructing the
front rollers of a material which will prevent the adhesion of dirt and mould.
According to my invention, I mount the front roller or rollers upon a spindle or
axle attached to one arin of a bell crank lever which is pivoted to the main frame
or an extension of the main frame, or of the slotted bracket usually present in
existing machines, the other arm having a long rod which is carried back to near
the handles of the machine where it is connected to a fastening device, such as a
clamp wheel arranged to ride in a slot of the handle bar for easy adjustment of the
front roller by operating the rod and bell crank lever for raising and lowering the
fore part of the machine and the cutters. An ordinary grass roller at the rear of
the machine serves as the fulcrum or pivot for the frame when the front end is
raised or lowered for regulating height of cut.

page_text: For preventing adhesion of clods, dirt, and mould to the rollers, I purpose forming
them of glass, porcelain, enamelled iron, or any other hard smooth and slippery
material, which will offer no holding surface, so that they will remain clean, even
when travelling over wet, or loose ground.
Figures 1 and 2 part plan and side view explain my invention.
A, frame of lawn mower of well known type. B, cutter blades reel. C, bearing
wheel by chain of which the cutter blades reel is driven. D. D, front brackets
usually fixed by bolts and nuts at either side when adjusted to suit height of cut for
the roller E (or rollers) to touch the ground, said roller or rollers E, E, may be of
glass, porcelain, enamelled ware, or the like so that they can move over the ground
without picking up dirt or leaves.
For the purpose of my invention when applied to an existing lawn mower, I
remove the roller E (or rollers) from the brackets D, D, and pirot it or them to
legs F, F, affixed to a shaft G which serves as the fulcrum for the motion
of the legs, another leg H (or legs) being jointed to the rod I for operation
from the rear where end of rod is arranged to be slid along a slotted plate J and
be gripped by the boss of the screw wheel K to fix it at any desired position
Both sides of the
according to the height at which the cutters have to be set.
machine are set up or down to an equal extent and parallel by the single movement
of the rod I, and from the fact that the regulation or adjustment can be done from
the handle, or back end of the machine, and both sides be lifted or lowered at the
front at the same time and to the same extent. The adjustment is readily effected
in an easy manner without the front brackets being touched.
Having now particularly described and ascertained the nature of this inven-
tion and in what manner the same is to be performed I declare that what I
claim is-
•
1. Utilizing the front rollers of a lawn mower, and operating them from the back
by rod and levers in the manner described and substantially as represented in the
annexed drawings.
2. Pivoting the front rollers of a lawn mower on and from a forward shaft for
adjusting and affixing the height of the cutter blades action from the rear, as set
forth and substantially as shown.
The 28th day of November 1895.
H. GARDNER,
Patent Agent, 166, Fleet Street, London,
Agent for the said William Dyson Wansbrough.