A NEW AND IMPROVED MOWING AND REAPING MACHINE
Year: 1877

page_text: LETTERS PATENT to Carl Lindbom, Land Owner and Iron Master, of Falun,
in the Kingdom of Sweden, for the Invention of "A NEW AND IMPROVED
MOWING AND REAPING MACHINE."
Sealed the 14th August 1877, and dated the 19th February 1877.
PROVISIONAL SPECIFICATION left by the said Carl Lindbom at the Office
of the Commissioners of Patents on the 19th February 1877.
.
CARL LINDBOM, Land Owner and Iron Master, of Falun, in the Kingdom of
Sweden. "A NEW AND IMPROVED MOWING AND REAPING MACHINE."
This construction of reaping and mowing machine differs mainly from others by
the peculiar and simple mode in which the knife or finger bar obtains its recipro-
cating movement.
On the driving shaft I fit a drum, consisting of two outer iron discs or rims
and an intermediate disc or rim of wood, all three plates being held together by
screw or bolts. The outer plates are on their inner side all along their outer
peripheries formed undulating, or with equidistant teeth-like depressions and pro-
jections. When these two plates are so placed against each other, and with the
intervening disc or rim of suitable thickness that the teeth on one plate or rim
correspond with the other, a wave-like gutter is produced in the periphery of the
drum. In this gutter works a crank pin, the crank being on a weigh shaft working
in a boss or bearing, and having also a lever. By the revolution of the drum oscil-
lating movement is imparted to the weigh shaft and to the lever thereon, which
latter is connected to the finger bar which thus obtains the desired reciprocating
movement.
As the two outer discs or rims are separated by a wooden disc or rim facility is
afforded by the insertion of wooden discs or rims of different thickness to vary the
distance between the two outer discs; thus when the outer discs wear, a thinner
wooden disc or rim may be inserted as required.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed by
the said Carl Lindbom in the Great Seal Patent Office on the 18th August
1877.
CARL LINDBOM, Land Owner and Iron Master, of Falun, in the Kingdom of
Sweden. "A NEW AND IMPROVED MOWING AND REAPING MACHINE."
This construction of reaping and mowing machines differs mainly from others by
the peculiar and simple mode in which the knife or finger bar obtains its recipro-
cating movement.
Figure 1 of the accompanying Drawings is a vertical section through a machine
constructed according to this Invention; Figure 2, a plan of same; and Figures 3
and 4, separate views of the gear for giving the cutter plate reciprocating movement.
On the driving shaft A I fit a drum B, consisting of two outer iron discs or rims
B1, B¹, and an intermediate disc or rim G of wood, all three plates being held
together by screw or bolt. The outer plates B¹, B¹, are on their inner side all
along their outer peripheries formed undulating, or with equidistant teeth-like
depressions and projections. When these two plates are so placed against each
other, and with the intervening disc or rim G of suitable thickness, the teeth on
one plate or rim B' correspond with the other, a wave-like gutter C is produced in the
periphery of the drum B. In this gutter C works a crank pin D, the crank being
on a weigh shaft F working in a boss or bearing H, Fig. 1, and having also a lever
K. By the revolution of the drum B oscillating movement is imparted to the weigh
shaft F and to the lever K thereon, which latter by a jointed link L is connected
to the finger bar M, which thus obtains the desired reciprocating movement.
As the two outer discs or rims B¹ are separated by a wooden disc or rim facility
is afforded by the insertion of wooden discs or rims of different thickness to vary
the distance between the two outer discs; thus when the outer discs wear, a thinner
wooden disc or rim may be inserted as required.
And having thus described the nature of this Invention I declare that I claim,-
Firstly. The application of a rotary disc or rim B for giving the finger bar a re-
. ciprocating movement, and the construction of the said disc or rim of wood with
cast-iron plates on both sides, said plates having projections and depressions on the
periphery forming an undulating groove, substantially as set forth.
Secondly. The pin C working in the said groove and the lever gear for transmitting
this movement to the finger bar, and giving the latter a reciprocating movement,
substantially as set forth."
In witness whereof, I, the said (Carl Lindbom, have hereunto set my hand
and seal, this Eleventh day of August, in the year of our Lord One thousand
eight hundred and seventy-seven.
CARL LINDBOM. (L.S.)