Improvement in Driving Mechanism for Harvester Binders.
Year: 1891

page_text: Date of Application, 12th Mar., 1891-Accepted, 18th Apr., 1891
COMPLETE SPECIFICATION.
Improvement in Driving Mechanism for Harvester Binders.
I, GEORGE BARKER, of 77, Colmore Row, Birmingham, in the County of
Warwick, Consulting Engineer, do hereby declare the nature of the said invention,
as communicated to ine from abroad by Hart A. Massey, President of The Massey
Manufacturing Co., Ltd., of the City of Toronto, in the County of York, in the
Province of Ontario, Dominion of Canada, Inventor, 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 the invention is to simplify the arrangement of gearing through
which motion is conveyed from the main ground wheel of the machine to the
operating mechanism of the harvester, the said gearing being designed to permit a
free vertical adjustment of the machine without in any way straining or interfering
with the satisfactory operation of the said gearing and it consists essentially of an
intermediate driving shaft supported in a suitable bearing one end of which is
journaled on the axle of the main ground wheel and the other end pivotted on the
frame of the machine the said intermediate shaft having fixed to it a bevilled
pinion designed to mesh with a gear wheel fixed to the main ground wheel, in order
that the revolving movement of the said ground wheel shall be transmitted to the
intermediate shaft on which a sprocket wheel is fixed, a suitable chain gearing
being placed on the said sprocket wheel and conveyed around the other sprocket
wheels connected respectively to the various shafts from which the operating parts
of the machine derive their motion.
Figure 1 is a perspective view of the mechanism involved in my invention.
In the diawing A is a shaft of the ground wheel B which is shown in dotted
lines.
C is the intermediate shaft supported at one end by a yoke-shaped bearing box D,
which is journaled on the shaft A as indicated. Within the yoke of the bearing
box D1 journal on the shaft. C a bevil pinion E which meshes with the gear
wheel F fixed to the ground wheel B and which like the ground wheel I show
merely in dotted lines.
G is a clutch keyed to the shaft C in such a manner that it will revolve thereon
but may be longitudinally adjusted in order that the connection between the bevilled
pinion E and the shaft C may be made at any desired time. This clutch G is
operated by a rod H and a crank rod I located as indicated. J is a bearing box
preferably connected to the bearing box D and designed to support the outer end
of the shaft C. This bearing box J is provided with the trunnions K which are
pivotted in bearings formed in brackets L fixed to the frame M of the machine.
N is a sprocket-wheel fixed to the shaft C. O is a sprocket-chain carried over the
sprocket wheel N thence around the wheel P' which is connected to the shaft driving
the grain-table canvas thence around the sprocket-wheels Q and R connected to the
shafts driving the elevating canvases and after passing around a sprocket wheel,-
not shewn in the drawing, but which is connected to the shaft from which the
knotting mechanism derives motion-is carried around the sprocket wheel S back
over the sprocket wheel N, the sprocket wheel S being connected to the shaft from
which the knives of the machine derive their reciprocating motion. I may mention
here that my improved system of driving gear is applied as shewn and described
to that class of harvesters in which the machine is vertically adjustable upon the
shaft of its ground-wheel.
It will be seen that if the intermediate shaft C was supported in bearing boxes
rigidly held in position it would be impossible to effect the vertical adjustment of
the machine but by pivotally supporting the said shaft on the axle of the ground

page_text: wheel and the frame of the machin, the machine may be vertically adjusted as
required without straining or in any way interfering with the satisfactory operation
of the driving mechanism described.
It is quite true that the spro ket wheel N may be slightly tilted but this tilting
does not interfere with the operation of the sprocket chain Ŏ.
Although the mechanism for imparting the vertical adjustment to the frame of
the machine is old and forms no part of my invention I may mention that the crank
shaft T worm U, and worm wheel V, are provided for the purpose of revolving
the shaft A which motion imparts the necessary vertical adjustment of the machine
as will be understood by anyone familiar with harvesters.
Having now particularly described and ascertained the nature of the said inven-
tion, and in what manner the same is to be performed, I declare that what I
claim is :-
1st. In a harvester, an intermediate shaft supported in a bearing box journaled
at one end on the ground wheel axle, and pivotted at its other end on the frame of
the machine gearing being provided to connect the intermediate shaft with the
ground wheel: substantially as & for the purpose specified.
2nd. In a harvester, an intermediate shaft supported in a bearing box journaled
at one end on the ground wheel axle and pivotted at its other end on the frame of
the machine gearing being provided to connect the intermediate shaft with the
ground wheel in combination with a sprocket-wheel fixed to the intermediate shaft
& connected by a sprocket chain to sprocket wheels on the shafts from which the
different operating parts of the machine derive their motion: substantially as and
for the purpose specified.
111 1
35
L 1001
GEORGE BARKER.