Ix- PROVEMENTS IN HARNESS TUG STOPS FOR SHAFTS OF CARRIAGES
Year: 1871

page_text: LETTERS PATENT to Paxton William Parkin, of Ridge Mount
Basset, in the County of Southampton, for the Invention of "Ix-
PROVEMENTS IN HARNESS TUG STOPS FOR SHAFTS OF CARRIAGES."
Sealed the 22nd December 1871, and dated the 27th June 1871.
PROVISIONAL SPECIFICATION left by the said Paxton William Parkin
at the Office of the Commissioners of Patents, with his Petition,
on the 27th June 1871.
·I, PAXTON. WILLIAM PARKIN, of Ridge Mount Basset, in the County
of Southampton, do hereby declare the nature of the said Invention
for "IMPROVEMENTS IN HARNESS TUG STOPS FOR SHAFTS OF CARriages,” to be
as follows:-
These improvements are intended more especially for use on the shafts
of dog carts or like vehicles, but may also be applied to the shafts of
other carriages, including heavy farm and agricultural carts, consist
in making the tug stop or appliance (for shafts) with sliding projection

page_text: -
or stop piece on a frame or bar to be fixed to shaft, and with fastening
screw or regulating equivalent for adjusting the position of the stop
piece and holding it firmly when adjusted.
The improved tug stop, which is to be applied on the side of the shaft,
will obviate necessity for the ordinary horn or projection underneath the
shaft and in advance of tug, consequently allowing removal of a horse
more readily in the event of the animal falling, and preventing injury
to tug, which sometimes has to be cut. By simply adjusting the stop it
may be made to suit any length of trace without undoing a single
buckle. The ordinary back horn or projection is also dispensed with.
The sliding stop piece is sometimes to carry roller for tug so as to obviate
or lessen chafing.
It is contemplated to make the bar or frame sometimes but not of
necessity T shaped, with edge or bottom of the T presented towards
the shaft, and to make the stop piece with a groove and members
clipping over the edges of the head of the T. The fastening screw or
regulating equivalent to be not. milled, or milled for handling conve-
niently, and not to pinch or prevent the roller from turning. The ends of
bar to be suitably shaped for securing to shaft, and stop holes or recesses
to be sometimes provided for more effectually preventing movement of
stop piece when, adjusted for position in respect of any one of them.
SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said Paxton William, Parkin, in the Great Seal. Patent
Office on the 22nd December 1871.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, PAXTON 2
WILLIAM PARKIN, of Ridge Mount Basset, in the County of South-
ampton,, send greeting...
WHEREAS Her most Excellent Majesty Queen Victoria, by. Her
Letters Patent, bearing date the Twenty-seventh day of June; in the year
of our Lord. One thousand eight hundred and seventy-one,, in the thirty- 80
fifth year of Her reign, did, for Herself, Her heirs, and successors, give.
and grant unto me, the said Paxton William Parkin, Her special licence,
that I, the said Paxton William Parkin, my executors, administrators,

page_text: and assigns, or such others as I, the said Paxton William Parkin, 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,
5 and vend, within the United Kingdom of Great Britain and Ireland,
the Channel Islands, and Isle of Man, an Invention for “IMPROVE-
MENTS IN HARNESS TUG STOPS FOR SHAFTS OF CARRIAGES," upon the condition
(amongst others) that I, the said Paxton William Parkin, my exe-
cutors 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 imme-
diately after the date of the said Letters Patent.
°
NÓW KNOW YE, that I, the said Paxton William Parkin, do hereby
declare the nature of my said Invention, and in what manner the same
is to be performed, to be particularly described and ascertained in and
by the following statement :-
These improvements, which are intended more especially for use on
the shafts of dog carts or like vehicles, but may also be applied to the
shafts of other carriages, including heavy farm and agricultural carts,
consist in making the tug stop or appliance (for shafts) with a sliding
projection or stop piece on a frame or bar to be fixed to shaft, and with
a fastening screw or regulating equivalent for adjusting the position of
the stop piece and holding it firmly when adjusted.
The improved tug stop, which is to be applied on the side of the shaft
will obviate the necessity for the ordinary horn or projection underneath
the shaft and in advance of tug, and will consequently allow removal of
a horse more readily in the event of the animal falling, and by loosening
its screw will tend to prevent injury to tug, which sometimes has to be
out. By simply adjusting the stop it may be made to suit any length of
trace without undoing a single buckle. The ordinary back horn or
projection is also dispensed with. The sliding stop piece is sometimes
to carry roller for tug so as to obviate or lessen chafing.
It is contemplated to make the bar or frame sometimes but not of
accessity T shaped, with edge or bottom of the T presented towards the

page_text: shaft, and to make the stop piece with a groove and members clipping
The fastening screw or regulating
milled for handling conveniently,
over the edges of the head of the T.
equivalent to be not milled, or to be
and not to pinch or prevent the roller from turning. The ends of bar
to be suitably shaped for securing to shaft, and stop holes or recesses to 5
be sometimes provided for more effectually preventing movement of
stop piece when adjusted for position in respect of any one of them..
The accompanying illustrative Drawing will more particularly
elucidate and exemplify the manner of performing my Invention.
Figure 1 is a side view of a dog cart having the improved tug stop
applied to the shafts. The part colored red in the Figure shews the
position of the stops on the shafts, being the same as the position for
ordinary tug stops. The remaining Figures are drawn full size.
Figure 2 is a plan view of part of a shaft a with the improved tug
stop applied, and Figure 3 a side elevation of same. 6 is the sliding
stop piece, shewn also detached in section and external views in Figures 4
and 4, 4, 4º, respectively; c is the frame or bar upon which the stop
piece slides fixed by screws to shaft. This bar is also shewn detached
in plan and side view at Figures 5 and 5*, respectively; Figure 5' is a
transverse section of the bar shewing its T like form. In this Figure c*
marks the bottom of the T, which is to be presented towards the shaft,
and c, c, the edges of the head of the T over which the members 6*, 6*,
of the stop piece clip or engage, see Figures 4, 4, and 4°. The groove
into which the bar c fits lies between and behind these members. In
Figures 2 and 3 the stop piece is represented situate at about the middle
of the length of the bar o and held in that position by the regulating
fastening or set screw e, which is also shewn detached by the Figures 6
and 6°. Instead of this having a milled head as shewn a thumbscrew
head may be substituted, or the head may be made square or hexagonal
for turning by a spanner, or may have a hole through it for turning
(capstan fashion), by a rod or lever to be inserted for the purpose when
required; f is the anti-chafing roller on the stop piece b, shewn also
detached at the Figures 7, 7ª, and 76. This is capable of turning freely.
on the stop piece even when the set screw e is screwed tightly against
the bar c, the screw must therefore be of sufficient length that the head
shall not clip or set the roller fast. To avoid unnecessary complication
in the Drawing the bar c is represented without stop holes or recesses.

page_text: or indentations for the end of the screw e to bear against, indeed it is
considered they are not of necessity required, but may be employed when
the improved tug stop is intended for very rough or heavy work.
In witness whereof, I, the said Paxton William Parkin; have here-
unto set my hand and seal, this Twentieth day of December,
in the year of our Lord One thousand eight hundred and seventy-
one.
PAXTON WILLIAM PARKIN. (L.S.)