CERTAIN IMPROVEMENTS IN THRESHING MACHINES
Year: 1846

page_text: TO ALL TO WHOM THESE PRESENTS SHALL COME, I, WILLIAM
CARPENTER, of Bridge Street, Banbury, in the County of Oxford, Watch
Maker, send greeting.
WHEREAS Her present most Excellent Majesty Queen Victoria, by Her
Royal Letters Patent under the Great Seal of Great Britain, bearing date at
Westminster, the Twenty-fifth day of March, One thousand eight hundred and
forty-six, in the ninth year of Her reign, did, for Herself, Her heirs and
sors, give and grant unto me, the said William Carpenter, my exors, admors,
and assigns, Her especial licence, full power, sole privilege and authority, that
I, the said William Carpenter, my exors, adñiors, and assigns, or such others as
I, the said William Carpenter, my exors, admors, or assigns, should at any time
agree with, and no others, from time to time and at all times thereafter during
the term of years therein expressed, should and lawfully might make, use,
exercise, and vend, within England, Wales, and the Town of Berwick-upon-
Tweed, in the Islands of Jersey, Guernsey, Alderney, Sark, and Man,
and also in all Her Majesty's Colonies and Plantations abroad, my.
Invention of "CERTAIN IMPROVEMENTS IN THRESHING MACHINES;" in which
said Letters Patent is contained a proviso obliging me, the said William
Carpenter, to particularly describe and ascertain the nature of my said Inven-
tion, and in what manner the same is to be performed, by an instrument
in writing under my hand and seal, and to cause the same to be enrolled in

page_text: Her said Majesty's High Court of Chancery within six calendar months
next and immediately after the date of the said in part recited Letters Patent,
as in and by the same, reference being thereunto had, will more fully and at
large appear.
1.
NOW KNOW YE, that in compliance with the said proviso, I, the said
William Carpenter, do hereby declare that the nature of my said Invention, and
the manner in which the same is to be performed, are particularly described
and ascertained in and by the following Statement thereof, reference being had
to the Drawing hereunto annexed, in which the same letters respectively
indicate the same parts; that is to say :-
My Invention of Certain Improvements in Threshing Machines is appli-
cable to threshing machines of the ordinary construction, and consists in the
application of antifriction rollers in substitution for the bearings ordinarily
employed to support the drum shaft. The Drawing represents an external
elevation of one side of a threshing machine, having friction rollers fitted
according to my Invention, the other side being furnished, with framework and
friction rollers for the support of the shafts, similar to what is exhibited on
the side shewn in the Drawing, as herein-after described. A, B, mark the
framework of the machine, secured together by bolts and nuts a and screws b..
C is the casing (behind the framework) within which the drum and other
parts (employed in threshing machines generally) are enclosed. Dis-the
main driving shaft, to which the power made use of in working the machine is
to be applied. E is a spur wheel made fast upon the shaft D at the end which
is opposite to that represented in the Drawing, and which gears into a small.
wheel on the opposite side of the machine, its position being denoted by its
pitch line F drawn in red. This latter wheel is keyed or otherwise secured
upon the drum shaft G, upon which, at the end represented in the Drawing,
is likewise fixed the fly wheel H, to equalize the motion of the machine.
Parts of the arms of this wheel are represented as broken away, in order to
expose to view the. peculiar feature of my Invention, viz., the manner in which
the drum shaft G is supported. I marks one of two plates, of. metal (bolted
to that part of the framing marked A), and serving as a bearing for the axes. of
the antifriction rollers 1, 2, 3,, which are employed as a-substitution for an
ordinary brass or bearing for the support of the. main driving shaft D., K
marks one of two plates of metal (bolted to that part of the framing marked B).
and serving as a bearing for the axis of the antifriction roller 4.. L marks
one of two plates of metal, likewise bolted to that part of, the framing
marked B, and serving as a bearing for the axis of the antifriction rollers 5, 6.

page_text: The antifriction rollers 4, 5, 6, are employed as a substitution for the ordinary
brass or bearing for the support of the. drum shaft G. The plates above
referred to as corresponding to those marked I, K, L, are placed on the oppo-
site side of the framework A, B, and between it and the casing C, and are let
in flush with the surfaces of the framework A, B. When any difference is
made in the size of the antifriction rollers employed to: support the shaft, I
place the larger roller immediately under it, so as, to receive its weight, or in
the direction opposed to the greatest pressure upon such said shaft. Thus,
the antifriction roller 4 is represented in the Drawing immediately under the
drum shaft G, the weight of which it has to bear. This roller is supported
upon pivots working in brass sockets rivetted to the plates K, and the
rollers 1, 2, 3, 5, and 6, are supported upon screwed pins or bolts i and I, the
heads of which bear against the furthest of the plates I and L, and the other
ends, with securing nuts upon them, are shewn in the Drawing. In those
rollers, the size of which would prevent an easy lubrication of the inner end
of their axes, I form a hole for such purpose, as shewn at 4* on the roller 4,
through which a ready access to such inner end of the axis is attainable.
I would here remark, that although I have described the roller 4, and the
rollers 1, 2, 3, 5, 6, as being differently supported, I wish it to be understood
that I employ either of these two ways of support for all or any of the rollers.
That part of the framework marked B is made moveable in order easily to
admit of the drum being occasionally withdrawn and replaced, according as
required. This removal of the framework is effected by taking out the
screws b, when the part marked B, together with the plates K, L, attached
thereto, and rollers 4, 5, 6, may be readily detached from the other portions of
the machine.
Having now described the nature and intention of my said Invention, and
the manner in which the same is to be performed, I wish it to be distinctly
understood that I do not claim the use of antifriction rollers as supports or
bearings for shafts generally, neither do I claim the exclusive application of
antifriction rollers as supports for the main driving shafts of threshing
machines; but I claim as my Invention the exclusive use and application of
antifriction rollers to the drum shaft of such machines in lieu of the bearings
ordinarily employed to support it.
In witness whereof, I, the said William Carpenter, have hereunto set my
hand and seal, this Twenty-fifth day of September, in the year of our
Lord One thousand eight hundred and forty-six.
WILLIAM (L.s.) CARPENTER.

page_text: AND BE IT REMEMBERED, that on the Twenty-fifth day of September,
in the year of our Lord 1846, the aforesaid William Carpenter came before
our said Lady the Queen in Her Chancery, and acknowledged the Specification
aforesaid, and all and every thing therein contained and specified, in form above
written. And also the Specification aforesaid was stamped according to the
tenor of the Statute made for that purpose.
Enrolled the Twenty-fifth day of September, in the year of our Lord One
thousand eight hundred and forty-six.