IMPROVEMENTS IN SIGHT ELEVATORS FOR FIRE ARMS
Year: 1885

page_text: I HERBERT PERCY MILLER of 15 Craven Terrace, Hyde Park Gentleman do
hereby declare the nature of my invention for IMPROVEMENTS IN SIGHT ELEVATORS
FOR FIRE ARMS to be as follows:-
The object of this invention is to afford increased facilities for taking accurate
aim with fire arms.
My first improvement consists in engraving stamping or otherwise fixing or
placing upon a sight elevator one or more degrees, ininutes, or points arranged
according to their proper scale of reading thus; if the elevator be set to read, say,
hundredths of an inch, then one degree or hundredth, would give on an arm with
two feet radius between the sight, 7 inches, at an object 500 yards distant; while
at 600 yards one degree would give 9 inches and so on.
A second improvement consists in engraving stamping or otherwise fixing or
placing on a sight elevator for fire arms the number of degrees to be added in
going from one range to another, that is to say; Supposing an elevator be set to
read hundreds, then 12 degrees should be added in going from 500 yards to
600; and in going from 600 to 700 yards 9 inches, and so on.
My invention ensures great facility accuracy and convenience as it entirely
dispenses with all necessity either for carrying instruction cards or committing
tables of figures to memory, by converting the sight elevator itself into an accurate
and reliable key for all the necessary information.

page_text: I, HERBERT PERCY MILLER of 15 Craven Terrace, Hyde Park Gentleman do
hereby declare the nature of this 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 afford increased facilities for taking accurate
aim with fire arms by inscribing or otherwise placing upon a sight elevator certain
tables and indices in the manner next hereinafter described.
The accompanying drawing shews a sight elevator with my improvements
applied thereto.
My first improvement consists in engraving stamping or otherwise fixing or
placing upon a sight elevator a table of figures (marked A in the accompanying
drawing) consisting of one or more degrees, minutes or points arranged according
to their proper scale of reading so that if the elevator be set to read say hundredths
of an inch then one degree or hundredth would give on an arm with two feet
radius between the sight; 7 inches at an object 500 yards distant; while at
600 yards one degree would give nine inches and so on- -Thus such table A shews
in inches the difference one degree will make on the target from 500 yards to
900 yards i.e. "5.7" signifies that one degree will give 7 inches on the target at
500 yards and so on.
A second improvement consists in engraving stamping or otherwise fixing or
placing on a sight elevator a table of figures (marked B in the accompanying
drawing) consisting of the number of degrees to be added in going from one range
to another, that is to say supposing an elevator to be set to read hundreds then
twelve degrees should be added in going from 500 yards to 600 and in going from
600 to 700 yards 13 degrees and so on-Thus the table of figures B shews the
number of degrees to be added in going from one range to another i.e. " 6.12"
indicates that at 600 yards 12 degrees should be added to the elevation used at 500;
at 700 yards add 13, and so on.
A third improvement consists in engraving stamping or otherwise fixing or
placing upon a sight elevator two diagrams or sections of diagrams of a target
as shewn in the accompanying drawing-Such diagrams or sections have the
figures 500 and 600 placed over them to indicate the particular ranges to which
they apply while inscribed upon each of such diagrams or sections is a series of
figures from 1 to 4 and from 2 to 5 as shewn in the accompanying drawing-The
figures constituting these respective series correspond with the number of degrees
to be added or deducted when a shot strikes a given spot on a target corresponding
with the position of the figures on either of the diagrams-Thus a shot striking
the bottom of a target six feet high at a distance of 500 yards would require a rise
of four degrees which is shewn by placing the figure 4 at the bottom of the target
-If on the contrary the shot strikes the top of the target a depression of four
degrees will be required thus shewing at once the amount to be deducted or added
without calculation.

page_text: These target diagrams or indices serve as substitutes for and do the same work
as the table A but in a more couvenient manner when the ranges used are those
at 500 yards and 600 yards-Thus on looking at table "A" it will be seen that
Tin at 500 yards will give 7 inches on the target-This is shewn on the
elevator thus-5.71-Multiply 7 inches by 5 and the result is three feet one inch
and a half-Now from the bottom of the target, now used to the centre of the
bull's-eye is three feet so that a rise of 18 in would place a shot within an inch
and a half of the centre of the bulls-eye But at 600 yards 100 is worth 9 inches
so that a rise or fall of 18 at that distance would give exactly 3 feet, and so "4
is placed at the bottom of the 600 yards diagram instead of "5" as at the bottoin
of the 500 yards diagram The figures are the more accurate if the marksman
makes the necessary calculation but the diagrams will be found sufficiently accurate
for all practical purposes. When firing however at longer ranges than 500 or
600 yards recourse must be had to table "A" to find how much one degree on the
elevator will give on the target.
"
Such various tables and indices may be engraved stamped or otherwise affixed
or placed upon a sight elevator either singly or two or more or all in combination
with each other as desired.
My invention ensures great facility accuracy and convenience as it entirely
dispenses with all necessity either for carrying instruction cards or committing
tables of figures to memory by converting the sight elevator itself into an accurate
and reliable key for all the necessary information.
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.
1° Engraving stamping or otherwise fixing or placing upon a sight elevator a
table of figures consisting of one or more degrees minutes or points arranged
according to their proper scale of reading substantially in the manner and for the
purposes herein before specified and shewn at A.
2° Engraving stamping or otherwise fixing or placing upon a sight elevator a
table of figures consisting of the proper number of degrees to be added in going
from one range to another substantially in the manner and for the purposes
herein before specified and shewn at B.
3° Engraving stamping or otherwise fixing or placing upon a sight elevator an
index or indices consisting of one or two diagrams or one or two sections of a
diagrain of a target each diagram or section having placed over it a series of
numerals shewing the particular range to which it is applied and having inscribed
thereon a series of figures corresponding with the number of degrees required to
be added or deducted when a shot strikes a given spot upon a target corresponding
with the position of the figures on either of the diagrams substantially in the
manner and for the purposes hereinbefore specified and shewn.
4° Engraving stainping or otherwise fixing or placing such various tables and
indices upon a sight elevator either separately or in combination with each other
as hereinbefore specified.