Year: 1886

page_text: We, MORITZ SCHMIDT, of Blasewitz, near Dresden, in the Empire of Germany,
Mechanician, and EMIL BÖHME, of the same Place, Merchant, do hereby declare.
the nature of our said 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 our invention is to manufacture an improved form and arrange-
ment of machinery for mowing grass.
And in order that our invention may be clearly described and ascertained,
reference is hereby made to the accompanying drawings, in which similar letters
of reference indicate corresponding parts.
Fig. 1 is an elevation and Fig. 2 a plan view of our invention.
a¹ a² are two stout frames, each embracing one of the wheels of o² by means of
their axles. 61 62 are two arms or brackets bolted to the frames a¹ a³, and pro-
jecting as shewn in Fig. 2. These arms support the plate d by means of the
bolts a¹ c².
The plate d is semicircular, or thereabouts, and is furnished, in front, with a
number of sharp bevel-edged teeth or blades d¹ d¹. These teeth act upon the
grass in the manner well known with respect to agricultural reaping and mowing
machinery. A rectangular opening is formed in the plate d for receiving the
adjustable roller e. This roller is provided with an axle, which works in adjustable
bearings f¹f, by which the length of the grass left on the ground after cutting is
regulated. The plate d also carries a vertical shaft g, partly enclosed in the
sleeve B¹ and the lower end of the sleeve B¹ is surrounded by the steadying
sleeve B. The bevel wheel n is fitted to the shaft g as shewn. To this wheel n
is fixed the hub : three or any other number of arms 1111, and also the thin
metallic globular cap'h, for protecting the gearing, and preventing its being
obstructed by cut grass.
The arms and carry the cutting blades or knives m² m² and m² at their
extremities.
The bracket b is added to carry the upper end of the shaft g, and the projecting
bara yy serve to secure the backs of the frames a¹ a* by means of the cross bar y¹.
The width of the operative part of the plate d is made sufficient to extend
beyond the width of the wheel base, in order that the wheels may not lay the
grass previously to cutting.

page_text: The shaft g, wheel n, hub k, arms , blades m and cap or plate h, all revolve
together; the blades m travel in an orbit as closely as practicable to the blades d'
and thereby cut the grass as the apparatus travels forward.
The wheels o¹ 02 act as drivers to the machinery, for which purpose they are
provided with teeth, ribs or projections o o, as shewn. The wheels o¹ o are pro-
vided with internal cogs or teeth p¹ p³ which drive the pinions gl g², these pinions
This bevel wheel 8
are keyed to the shaft r which carries the bevel-wheel 8.
drives the bevel pinion t, fitted to the shaft u, revolving in the sleeve w supported
by block and plate this plate extending, and being secured to, the two side
frames a¹ a. The bevel wheel v is also keyed to the shaft u, and this wheel v
drives the bevel-wheel n.
The method of operating our invention is as follows:-The machine being driven
forwards by means of the handle 2, the driving wheels o¹ o² by their rotation drive
the pinions q¹ q2 and the wheel 8; which wheel s drives the bevel-wheel t, shaft u,
and bevel wheels vand n; whereby the arms and 3 with their blades m¹ m³
and m³ are carried round, thereby cutting the grass at the level of the upper
surfaces of the blades d'.
In addition to the important advantage before mentioned, that the breadth of
surface operated upon is greater than the width of the wheels a¹ a²; there is this
further advantage that the semicircular front affords facilities for cutting the
grass round the bases of trees, and in other positions which offer difficulties to other
machines.
Having now particularly described, and ascertained the nature of our said
Invention, and in what manner the same is to be performed, we declare that what
we claim is :-
"
1. The manufacturé and use of grass mowing machines, fitted with semicircular
plates d and teeth d¹, over which revolving knives m² m² m³ operate in a hori-
zontal orbit, substantially as herein before described and shewn on the drawings.
2. The general construction, arrangement and combination of the several and
respective parts, together constituting our improvements in machinery or apparatus
for mowing grass, substantially as herein before described and shewn on the
drawings.