Improvements in Reaping and Mowing Machines.
Year: 1892

page_text: Date of Application, 1st July. 1892-Accepted, 6th Aug., 1892
COMPLETE SPECIFICATION.
Improvements in Reaping and Mowing Machines.
I, GEORGE CHARLES TOPP, Civil Engineer, of Brandon Lodge Wood Green,
in the County of London, do hereby declare the nature of this invention and in
what manner the same is to be performed, to be particularly described and ascer-
tained in and by the following statement:-
The object of this invention is to reduce the first cost of the reaping & mowing
machine by lessening the number of working parts in the mechanism used to convey
the power from the carrying wheels to the crank disc.
In place of the spur wheel gearing generally employed, in the present reaping
and mowing machines for transmitting the power to the crank disc, I employ a
flanged wheel running loose on the main axle of the carrying wheels. This wheel
engages with an ordinary clutch by means of a lever. The circumference of this
wheel has recesses cast in the face of it, into which a chain works. This chain
carries the motion to a smaller flanged chain-wheel with similar recesses in its
circumference to take the chain. The smaller wheel is cast in one piece with
a mitre-wheel which drives a second mitre wheel which is cast in one piece with
the crank disc. These mitre-wheels are carried by a bracket bolted to the frame-
work of the machine and are protected by a guard from dirt.
The larger chain wheel may be reduced in size and drive on to a smaller chain
wheel cast in one piece with a large spur wheel which drives a smaller spur wheel.
This smaller spur wheel is cast in one piece with a large mitre wheel which works
into a small mitre wheel cast in one piece with the crank disc. All supported by
the frame work of the machine.
Fig. 1. shows side view of the machine.
Fig. 2. shows plan.
Fig. 3. shows side view with inclined crank disc.
Fig. 4. shows elevation and plan of gearing used when a small driving chain-
wheel is employed.
In the forward motion of the machine the clutch K engages with the wheel A
which communicates motion to the wheel E by the chain passing round them.
The wheels A and E have recesses in their circumferences to receive the chain.
The wheel E being cast in one piece with the mitre wheel, P rotates it. The
wheel P drives the smaller wheel O which rotates the crank disc which may
be either horizontal as in Figs. 1 and 2 or inclined as in Fig. 3. The
wheels E, P, and O, are carried by spindles bolted into the bracket B.
Fig. 4 shows where a smaller driving chain wheel is employed and therefore
more gearing is needed to obtain the required speed. The chain-wheel E2 receives
motion from the axle chain wheel & rotates the wheel M which is cast in one
piece with it. The spur wheel M rotates a smaller spur wheel N which is cast
in one piece with a large mitre-wheel Q, which rotates the mitre-wheel S, cast
in one piece with the crank disc.
The wheels E, M, N, Q. S are carried by spindles bolted in to bracket B.
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 [
claim is :-
1st. In reciprocating reaping and mowing machines, the combination of chain
wheels and chain with toothed wheel gearing, as means for transmitting motion to
the crank.

page_text: Cheapress.
3rd. The general construction combination and arrangement of the parts,
substantially as above described.
Dth toil
LE FEVRE & Co.,
26, Budge Row, Cannon Street, E.C.