Year: 1885

page_text: I, JACQUES PHILlippe Pieri of St Margarets Mansions, Victoria Street, West-
minster, Middlesex, Gentleman do hereby declare the nature of this Invention to
be as follows:-
The object of this Invention is to construct and arrange or fix to some permanent
part of a gun carriage or supporting frame a bracket or plate having one part
marked off with a scale indicating the different distances at which the gun is
capable of being set (elevated or depressed) for firing purposes, said bracket or
plate having pivotted or hinged to it a lever also marked with a scale for
determining the deviation from the direct line caused by the spin or rotation of
the shot during its passage through the air.
The lever is arranged to be in contact with the breech or some other part of the
gun so that it can be moved by the gun when elevated or depressed to a position
according to the range for which the gun is prepared.
This Invention is applicable to all Machine Guns as well as to cannon or
big guns.
H. GARDNER,
Agent for Jacques Phillippe Pieri.

page_text: the Deviation of a Shots Fugut from the mange at winch &
Cannon is Set.
I JACQUES PHILLIPPE PIERI of St Margarets Mansions, Victoria Street, West-
minster, Middlesex, Gentleman, 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:—
The object of this invention is to construct and arrange or fix to some permanent
part of a gun carriage or supporting frame a bracket or plate having one part
marked off with a scale indicating the different distances at which the gun is
capable of being set (elevated or depressed) for firing purposes said bracket or
plate having pivotted or hinged to it a lever also marked with a scale for
determining the deviation from the direct line caused by the spin or rotation of
shot during its passage through the air.
The lever is arranged to be in contact with the breech or some other part of the
gun so that it can be moved by the gun when elevated or depressed to a position
according to the range for which the gun is prepared.
This invention is applicable to all Machine Guns as well as to Cannon or
big guns.
The invention is shown on the annexed drawings as applied to a frame and in
connection with a breech loading gun with rebounding action as described in
Letters Patent N° 3600 of 1885.
A is the bracket or plate attached to the frame or gun support B. C is an
upright bar carrying a plate D having divisions. E is a lever pivotted thereto its
lower leg bearing against the side of the gun breech by a spring F which keeps
it in contact. This lever is also marked or divided and has at its upper end a sight
hole G through which the line of fire can be taken.
The depression or elevation of the breech end acts, for different distances, upon
the lever E and the line of sight then coincides with the direction of flight of the
shot caused by its spin through the air thus the deviation of said flight so caused
is determined from the firing point.
Having now particularly described and ascertained the nature of my said
invention and in what manner the same is to be performed I declare that what
I claim is:-
The apparatus hereinbefore described and shown in the annexed drawings as an
attachment to a gun frame or carriage and as a means for automatically determining
the deviation of a shots flight for the range at which a cannon or gun is set.
The 26th day of August 1886.
H. GARDNER,
Agent for the said J. P. Pieri.