IMPROVEMENTS IN JACKS AND SCREW NUTS FOR ATTACHING THILLS AND POLES OF WAGONS AND OTHER VEHICLES TO THE AXLETREES OF THE SAME
Year: 1862

page_text: LETTERS PATENT to George Haseltine, of the "International Patent
Office," No 100, Fleet Street, in the City of London, American Barrister-
at-Law, for the Invention of "IMPROVEMENTS IN JACKS AND SCREW NUTS
FOR ATTACHING THILLS AND POLES OF WAGONS AND OTHER VEHICLES TO
THE AXLETREES OF THE SAME."-A communication from abroad by Lyman
Derby, of the City and State of New York, in the United States of
America.
Sealed the 17th March 1863, and dated the 13th October 1862.
PROVISIONAL SPECIFICATION left by the said George Haseltine at the
Office of the Commissioners of Patents, with his Petition, on the
13th October 1862.
I, GEORGE, HASELTINE, of the "International Patent Office" No. 100, Fleet
Street, in the City of London, American Barrister-at-Law, do hereby declare
the nature of the said Invention for "IMPROVEMENTS IN 'JACKS' AND SCREW
NUTS FOR ATTACHING THILLS AND POLES OF WAGONS AND OTHER VEHICLES TO
THE AXLETREES OF THE SAME," a communication to me from abroad by Lyman
Derby, of the City and State of New York, in the United States of America,
to be as follows, that is to say:-
The nature of my Invention consists in the employment of a longitudinal
screw bolt working on a centre pin through its head and the end of the thill
irons, in combination with a jack and clip iron secured on the axletree, for

page_text: the purpose of uniting the thills or pole to the running parts of the
vehicle.
The nature of my Invention further consists in a compound screw nut for
securing the longitudinal bolt in the jack so as to hold the thills firmly
united to the axletree by a working joint, that may at all times be made to
compensate for the wear of the parts of metal in contact, thereby preventing
all rattling and jarring noise consequent upon the constant motion of the thills
when in use.
SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said George Haseltine in the Great Seal Patent Office on the 18th
March 1863.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, GEORGE
HASELTINE, of the "International Patent Office," No. 100, Fleet Street, in
the City of London, American Barrister-at-Law, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Thirteenth day of October, in the year of our Lord
One thousand eight hundred and sixty-two, in the twenty-sixth year of Her
reign, did, for Herself, Her heirs and successors, give and grant unto me,
the said George Haseltine, Her special licence that I, the said George Haseltine,
my executors, administrators, and assigns, or such others as I, the said
George Haseltine, my executors, administrators; and assigns, should at any
time agree with, and no others, from time to time and at all times thereafter
during the term therein expressed, should and lawfully might make, use,
exercise, and vend, within the. United Kingdom of Great Britain and Ire-
land, the Channel Islands, and. Isle of Man, an Invention for "IMPROVE-
MENTS IN JACKS' AND SCREW NUTS FOR ATTACHING THILLS AND POLES OF
WAGGONS AND OTHER VEHICLES TO THE AXLETREES OF THE SAME," a communi-
cation from Lyman Derby, of the City and State of New York, in the United
States of America, upon the condition (amongst others) that I, the said George
Haseltine, my executors or administrators, by an instrument in writing under
my, or their, or one of their hands and seals, should particularly describe and
ascertain the nature of the said Invention, and in what manner the same was
to be performed, and cause the same to be filed in the Great Seal Patent
Office within six calendar months next and immediately after the date of
the said Letters Patent.
NOW KNOW YE, that I, the said George Haseltine, do hereby declare the
nature of the said Invention, and in what manner the same is to be per-

page_text: formed, to be particularly described and ascertained in and by the following
statement thereof, reference being had to the accompanying Drawings, and
to the letters and figures marked thereon (that is to say) :-
This Invention as communicated to me by the Inventor, Lyman Derby, of
New York, United States of America, relates to the mode of attaching the
thills and poles of wagons, carriages, and other vehicles to their axletrees so
as to prevent the thills from working and getting loose in consequence of the
constant jarring motion they are subjected to when in use.
In the accompanying Drawings, Figure 1 is a side view of the thill fastener
and jack as attached to the clip iron secured on the axletree, and showing by
the dotted outlines the longitudinal screw bolt for holding the thills and axle-
tree together; Figure 2 is a front end view of the thill fastener and jack;
Figure 3 is a detached view of the longitudinal bolt, as secured by a trans-
verse bolt through the head of it between the ear pieces of the thill iron;
Figures 4 & 5 are plan and side views of the compound nut; Figures 6 & 7
are side views of the two halves of the nut seperated, so as to exhibit the
semicircular inclined planes on their matching faces; Figures 8 & 9 are plan
views of the matching faces of the nut; Figure 10 is a longitudinal cut section
of the thill fastener through the line x, x, Figure 2.
Letter A is the axletree; B, the clip iron secured on it by means of two
Screws C passing through a plate D, on the under side of the axletree, and in
contact therewith by the nuts E; binding the whole firmly, together, on the
front side of the clip is forged a solid block of metal or jack F, though this is
not absolutely necessary as it may be made seperate from the clip, and then
bolted or screwed to it. Longitudinally of the jack is bored a hole through
which is inserted a screw bolt H. This bolt is secured at its head by a centre
pin I between the ear pieces J of the thill iron K. The ends of the ear pieces
are rounded so as to fit a seat formed in the head of the jack, and of a greater
diameter than the diameter of the head of the bolt H. The object of this is
to make the ear pieces the bearings of the thill iron upon the jack so that as they
wear away it leaves space for the head of the bolt H to draw into the cavity
of the jack, as the screw nut on its lower end is tightened up, and thus at all
times keep the jack and thill irons firmly in contact to prevent any jarring or
rattling noise. Letter L is a compound screw nut made in two halves trans-
versely of their axis. The matching faces of the two halves have semecircular
inclined planes formed upon them, with a pitch line of somewhat inclination
than the pitch line of the threads on the longitudinal screw bolt H. The object
of this is to make a nut to lock upon the screw at any point desired, and thus
prevent it from getting loose by any jarring or rattling motion it may be

page_text: subjected to. This is effected by the simple operation of setting the outer
half of the nut back half a turn (more or less) on the screw, which causes
the inclined planes to bind upon each other, and against the threads of the
screw in such a manner as to lock the whole together, and thus prevents the
nut from loosing its hold, unless the parts are readjusted again by the applica-
tion of a screw wrench.
Having now described my Invention, I will proceed to set forth what I
claim,―
1st. I claim the employment of the longitudinal bolt secured by by a bolt
transversely through the head of it and between the ear pieces of the thill iron,
substantially as herein-before described.
2nd. I also claim the combination of the jack and clip made and operating
substantially as herein-before described.
; 3rd. I also claim the use of the compound nut H, made and operating sub-
stantially as herein-before described.
In witness whereof, I have hereunto set my hand and seal, this
Twenty-seventh day of February, in the year of our Lord One thou-
sand eight hundred and sixty-three.
GEORGE HASELTINE. (L.B.)