IMPROVEMENTS APPLICABLE TO MACHINES FOR TRIMMING UP AND SMUTTING WHEAT OR RYE
Year: 1881

page_text: LETTERS PATENT to William Phillips Thompson, of the Firm of Wm. P.
Thompson and Co., Agents for Foreign Patent Solicitors, of 6, Lord Street,
Liverpool, in the County of Lancaster, and 323, High Holborn, in the County
of Middlesex, Civil Engineer, for an Invention of "IMPROVEMENTS APPLICABLE
TO MACHINES FOR TRIMMING UP AND SMUTTING WHEAT OR RYE." A com-
munication from abroad by William Lauhoff, of Detroit, in the County of
Wayne and State of Michigan.
PROVISIONAL SPECIFICATION left. by the said William Phillips Thompson
at the Office of the Commissioners of Patents on the 26th January 1881.
WILLIAM PHILLIPS THOMPSON, of the Firm of Wm. P. Thompson and Co.,
Agents for Foreign Patent Solicitors, of 6, Lord Street, Liverpool, in the County
of Lancaster, and 323, High Holborn, in the County of Middlesex, Civil Engineer.
"IMPROVEMENTS APPLICABLE TO MACHINES FOR TRIMMING UP AND SMUTTING
WHEAT OR RYE." A communication from abroad by William Lauhoff, of Detroit,
in the County of Wayne and State of Michigan.
This Invention relates to certain improvements in that class of machines which
trim the ends of wheat or rye, and remove them, together with smut, dirt, and
other impurities which may be mixed with the grain.
The case which encloses the upper and lower stones has its inner vertical side
formed as a grating surface, the same being made by puncturing holes in the
metallic side of the case. The upper or revolving stone has its periphery provided
with one or more radial slots, in which fit slides, the latter being adapted to be
maintained in adjusted position by set screws, which have end bearing against the
upper edge thereof. A. driver having triangular arms is located in the central
opening of the stone, and its arms fit in suitable recesses formed in the underside
of the stone. An outer set of vertically adjusting screws pass through the stone
and have screw thread engagement with the driver arms. An inner set of
vertically adjusting screws pass through the stone and have end bearing against
the upper surface of the arms.

page_text: If one side of the stone is too high the outer adjusting screw near that portion
of the stone is turned down so as to level the stone. The corresponding inner
adjusting screw is then run down so as to bear strongly against the driver arm,
and thereby maintain the stone firmly in position. If one side of the stone is too
low the inner adjusting screw at that portion of the stone is run up, and then the
outer adjusting screw is turned up so as to raise the stone the desired distance.
The inner adjusting screw is then run down so as to bear strongly against its
driver arm.
The driver is firmly fitted on the upper extremity of the vertical spindle by a
conical bearing, so as to prevent all accidental displacement. The lower or
stationary stone is provided with a central opening, through which the spindle
passes. The bush blocks are adjusted against the spindle by wedges interposed
between the bushing and the side of the opening. A metallic plate is secured to
the underside of the stone, and maintains the bushing in position. The lower end
of the spindle is stepped in a bridge pot having lateral arms, which engage with
the lever as the latter is vertically adjusted by a rod and nut. This lever is
provided with a slot which fits over the socket of arch, said socket having the
bridge pot fitted therein.
The opposing surfaces of the sides and ends of horizontal rotary cylinder and
enclosing case are formed as grating surfaces, the same being made by holes
punctured in the metal so as to cause said surfaces to serve as graters.
The wheat or rye is first delivered to the machine by hopper, and it is acted
upon by the two horizontal stones, the latter being relatively adjusted to cause the
grain to travel upright between said stones. The ends of the grain are thereby
trimmed, and when properly trimmed and smutted it is discharged through a spout
in the cylindrical case. After the grain is finally polished by the action of the
grating surfaces of said case and its cylinder it is discharged from the machine by
a spout.
In the foregoing description the grinding surfaces are called stones, but it will
be understood that they may be of stone or metal.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed by
the said William Phillips Thompson in the Great Seal Patent Office on the
26th July 1881.
WILLIAM PHILLIPS THOMPSON, of the Firm of Wm. P. Thompson and Co.,
Agents for Foreign Patent Solicitors, of 6, Lord Street, Liverpool, in the County
of Lancaster, and 323, High Holborn, in the County of Middlesex, Civil Engineer.
IMPROVEMENTS APPLICABLE TO MACHINES FOR TRIMMING UP AND SMUTTING
WHEAT OR RYE." A communication from abroad by William Lauhoff, of Detroit,
in the County of Wayne and State of Michigan.
"
This Invention relates to certain improvements in that class of machines which
trim the ends of wheat or rye and remove them, together with smut, dirt, and
other impurities which may be mixed with the grain.
In the Drawings Fig. 1 is a vertical central section of the machine; Fig. 2
represents in different views the detail parts of the lower bearing of the vertical
spindle; Fig. 3 represents respectively in plan and reverse plan views the upper or
revolving stone; Fig. 4 is a rear end view of the machine, showing the polishing
cylinder in longitudinal vertical section; Fig. 5 represents in different views the
lower or stationary stone.
The case I, which encloses the upper and lower stones K and O, has its inner
vertical side formed as a grating surface, the same being made by puncturing holes
in the metallic side of the case.
The upper or revolving stone K has its periphery provided with one or more
radial slots in which fit slides 5, the latter being adapted to be maintained in
adjusted position by set screws which have end bearing against the upper edge
thereof.
A driver T having triangular arms is located in the central opening of the stone,
and its arms fit in suitable recesses formed in the under side of the stone.
An outer set of vertically adjusting screws H pass through the stone and have
screw thread engagement with the driver arms. An inner set of vertically
adjusting screws G pass through the stone, and have end bearing against the upper
surface of the arms.
If one side of the stone is too high the outer adjusting screw near that portion
of the stone is turned down so as to level the stone. The corresponding inner
adjusting screw is then run down, so as to bear strongly against the driver arm,
and thereby maintain the stone firmly in position.
If one side of the stone is too low the inner adjusting screw at that portion of
the stone is run up, and then the outer adjusting screw is turned up so as to raise
the stone the desired distance. The inner adjusting screw is then run down so as to
bear strongly against its driver arm.
The driver is firmly fitted on the upper extremity of the vertical spindle S by
a conical bearing, so as to prevent all accidental displacement.
The lower or stationary stone is provided with a central opening through which
the spindle passes.
The bush blocks are adjusted against the spindle by wedges interposed between
the bushing and the side of the opening.
'
A metallic plate W is secured to the under side of the stone and maintains the
bushing in position.
The lower end of the spindle is stepped in a bridge pot P, having lateral arms
which engage with the lever P¹, as the latter is vertically adjusted by rod C and
nut D. This lever is provided with a slot which fits over the socket a of arch R,
said socket having the bridge pot fitted therein.

page_text: The opposing surfaces of the sides and ends of horizontal rotary cylinder E and
enclosing case A are formed as grating surfaces, the same being made by holes
punctured in the metal so as to cause said surfaces to serve as graters.
The wheat or rye is first delivered to the machine by hopper I, and it is acted
upon by the two horizontal stones, the latter being relatively adjusted to cause the
grain to travel upright between said stones. The ends of the grain are thereby
trimmed, and when properly trimmed and smutted it is discharged through a
spout 3 into the cylindrical case a. After the grain is finally polished by the
action of the grating surfaces of said case and its cylinder it is discharged from the
machine by spout 9.
In the foregoing description the grinding surfaces are called stones, but it will
be understood that they may be of stone or metal, and those shown in the Drawing
are of metal.
Having now fully described this Invention as communicated to me, I'wish it to
be understood that what I believe to be new and desire to protect under the
hereinbefore in part recited Letters Patent is,—
The combination with an upper horizontal stone provided with a radial slot,
having closed longitudinal walls of a slide which fits in the slot, and a set screw
which engages with the upper edge of the slide or the mechanical equivalent of
these elements, substantially as set forth.
In witness whereof, I, the said William Phillips Thompson, have hereunto set
my hand and seal, this Twenty fifth day of July, in the year of our Lord
One thousand eight hundred and eighty one.