CERTAIN IMPROVEMENTS ON AXLETREES
Year: 1825

page_text: TO ALL TO WHOM THESE PRESENTS SHALL COME, I, WILLIAM
MASON, of Castle Street East, Oxford Street, in the Parish of St. Maryle-
bone, in the County of Middlesex, Axletree Manufacturer, send greeting.
WHEREAS His present most Excellent Majesty King George the Fourth,
by His Letters Patent under the Great Seal of Great Britain, bearing date at
Westminster, the Eighteenth day of June, in the sixth year of His reign, did,
for Himself, His heirs and successors, give and grant unto me, the said
William Mason, His especial licence that I, the said William Mason, my
exors, adññors, and assigns, or such others as I, the said William Mason, my
exors, admors, or assigns, should at any time agree with, and no others, from
time to time and at all times 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, my Invention of "CERTAIN
IMPROVEMENTS ON AXLETREES;" in which said Letters Patent is contained a
proviso obliging me, the said William Mason, by an instrument in writing
under my hand and seal, particularly to describe and ascertain the nature of my
said Invention, and in what manner the same is to be performed, and. to.
cause the same to be enrolled in His said Majesty's High Court of Chancery.
within six calendar months next and immediately after the date of the said
recited Letters Patent, as in and by the same, reference being thereunto hads.
will more fully and at large appear.
NOW KNOW YE, that in compliance with the said proviso, I, the said
William Mason, do hereby declare the nature of my said Invention, to consist

page_text: in the application of a peculiar kind of nut screw, and what I call a check
washer, to the end of an axletree, whereby any required play may be given to
the wheel without danger of losing the nut, and also in a cast metal box for
the same, cast with certain cavities in its inner surface for the purpose of more
effectually distributing oil over the arm of the axletree, and reducing friction;
and in further compliance with the said proviso, I, the said William Mason,
do hereby describe the manner in which I perform my said Invention by the
following description thereof, reference being liad to the Drawing annexed,
and the Figures and letters marked thereon, that is to say:-
DESCRIPTION OF THE DRAWINGS.
Figure 1 is a side elevation of the arm of an axletree, A being the ordinary
collet, and B the screw to receive the nut. It will be seen that this screw is
furnished with a straight semi-circular groove from end to end of its length.
Fig. 2 is a nut, Diade to screw on to B, and is furnished with a series of
grooves round its inner surface, corresponding with that on B. Fig. 3 is what
I call a check washer, and consists of a plate of metal, with a pin C projecting
from it, and at right angles with it. The object of this plate and pin is as
follows: When the nut, Fig. 2, is screwed on to the end of the arm B to
any distance, the grooves in the nut will at intervals correspond with the
groove on the arm B; and if the pin C be then introduced into the whole
thereby formed, the nut will be prevented from turning either way, and thus
the wheel will be as securely held on when the nut is half unscrewed as when
it is screwed up to the end of the screw B. Fig. 4 is a screw, with a large
head, which passes through the check washer and nut into the end of the
arm B to keep the check washer on. Fig. 5 is a side elevation of the various
parts herein-before described when put together, shewing the nut only partly
screwed up. The dotted lines-shew how the screw, Fig. 4, enters tho arm of
the axle. Fig. 6 is a section of Fig. 5. Fig. 7 is a plan of the end of the
arın, with the nut quite screwed on, but with the check washer and screw,
Fig. 4, removed. It will be seen by this Figure. that there are two groves
cut in the arm here represented, one at E and one at D; but the one at D
only is in correspondence with one of the grooves in the nut, and therefore this
hole appears round, and is the one into which the pin of the check washer
would be introduced. Fig. 8 is a section of a box, showing two of the said
cavities cast in it; and Fig. 9 is the corresponding half of the box, their being
four cavities in each box.
Now, whereas grooves or cavities have at various times been cut in wrought-
iron boxes, and whereas worms have been cut in cast-irou boxes, but a cast-

page_text: iron box with straight cavities, such as is herein-before described by Figures
8 and 9 on the Drawing, cast in it, is, to the best of my knowledge and belief,
a new Invention, I therefore hereby claim as my Invention a cast-iron box for
axletrees, with one or more such cavity or cavities cast in it, as is described in
Figures 8 and 9, as also the groove B in Fig. 1, the grooved nut Fig. 2, and
the check washer and pin Fig. 3; and these said last-mentioned improvements
being, to the best of my knowledge and belief, entirely new, and never before
used within that part of His said Majesty's United Kingdom of Great Britain
and Ireland called England, His said Dominion of Wales, and Town of
Berwick-upon-Tweed, I do hereby declare this to be my Specification of the
same, and that I do verily believe this my said Specification doth comply in
all respects, fully and without reserve or disguise, with the proviso in the said
herein-before in part recited Letters Patent contained, wherefore I hereby
claim to maintain exclusive right and privilege to my said Invention.
In witness whereof, I, the said William Mason, have hereunto set my
hand and seal, this Seventeenth day of December, One thousand eight
hundred and twenty-five.