Appeal No. 2000-1488 Page 8
Application No. 08/826,832
were previously used and as are normally used to secure the
hitch plate 22 to the rails 20. When the box 40 is mounted
upon rails 20 as is shown in Figures 4 and 5, the hitch plate
22 is adapted to be secured to the open or rear end of the box
to close such end and connect the sides 46 of the box with the
hitch plate 22 being parallel to the front plate 42. When the
parts are combined in the manner just described there is
provided a tractor including the combination of the rails 20,
the box 40, and the hitch plate 22 with such combination being
effective for receiving weights which
ensure the rear end of the tractor remaining on the ground
despite adverse front load conditions.
Brocklebank discloses in Figure 1 an earth moving machine
having a ground engaging propulsion means 11, a base frame 14
movable relative to the ground engaging propulsion means about
a first generally vertical axis V, a boom 30 and a
counterweight 20a mounted on the base frame so as to be
movable towards and away from the first vertical axis in
response to movement of the center of gravity of the machine.
As shown in Figure 2, members 18a, 18b, together provide a
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Last modified: November 3, 2007