Improved Arrangements for Attaching Elevation Indicators to Small Arms.
Year: 1898

page_text: Date of Application, 15th Apr., 1898-Accepted, 18th June, 1898
COMPLETE SPECIFICATION.
Improved Arrangements for Attaching Elevation Indicators to
Small Arms.
A communication from abroad by JOHN KING, Engineer, residing at Carrizal
Bajo, Chili.
I, WILLIAM RITCHIE, of 110, Hill Street, Garnethill, in the County of Glasgow,
North Britain, Manufacturer, 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, that is to say:-
The said invention relates to elevation indicators of the kind described in the
Patent Specification No. 1083 of 1896, and has for its object to improve the
methods of attaching the indicators to the side of the stock of a rifle or other
small arm.
And in order that the said invention and the manner of performing the same
may be properly understood I hereunto append a sheet of explanatory drawings,
to be hereinafter referred to, in describing the improvements.
Figure, 1, of the accompanying drawings is a side elevation of the indicator,
in its turned-up or working position, as attached to the side of the stock of the
rifle. Figure, 2, is a transverse vertical section. Figure, 3, is a view similar to
Figure, 1, but with the indicator in its turned-down or non-working position,
and Figures 4, and 5, are sections as at right angles to each other, showing the
internal details of the indicator. Figures, 6, 7, 8, 9, and 10, are respectively
views similar to Figures, 1, 2, 3, 4, and 5, showing another modification of the
improvements. In these drawings the same reference letters are used to mark
the same or like parts wherever they are repeated.
In carrying out the invention according to the first modification shown in
Figures, 1, to 5, the elevation indicator, A, is mounted on a taper stud, B, formed
or fixed to a plate, C, sunk into the side of the stock, D, of the rifle and attached
thereto by a screwed bolt, E. A spring piece, F, attached by a pin, G, to the
plate, C, is armed with taper stops, H, which fit into the boss, J, of an arm, I,
formed on the indicator, A, so that when the indicator is turned on the stud, B,
the stops retain it, either in its working or non-working position. In Figure, 3,
the indicator, A, is shown in its non-working position, being turned down into
a recess, K, formed to receive it in the side of the stock, D, of the rifle.
In the second modification of the improvements shown in Figures, 6, to 10, the
hinged part, L, of the back-sight is formed with a flange, M, having a projecting
part, N, to which the elevation indicator, A, is screwed. A sliding cover, P,
attached to a lever, Q, centered on the back-sight frame, R, is placed on the out-
side circumferential part of the indicator, A, and when the indicator is turned
down into its non-working position in the recess, K, the cover by the action of
the lever moves round and closes the slot opening, S, in the indicator, thereby
protecting the indicator mechanism. On the indicator, A, being turned up again
into its working position as shown in Figure, 6, the sliding cover, P, moves round
so as to uncover the slot opening, S, and expose the indicator scale as shown in

page_text: Figure, 7. If desired however, the lever, Q, may be dispensed with, and the cover
worked simply by hand. The internal details of the indicator as shown in
Figures, 4, 5, 9, and 10, are practically the same as those shown in Figures, 2,
and 3, of the earlier patent specification hereinbefore mentioned but any of the
other types of internal mechanism shown therein may be adopted if desired.
Having now particularly described and ascertained the nature of the said
invention and in what manner the same is to be performed, I declare that what
I claim is: :-
1. Mounting the elevation indicator on a stud, formed or fixed to a plate
attached to the side of the stock of a rifle or other small arm; a spring being
fixed to the plate, and armed with stops fitting into the eye of a lever arm formed
on the indicator, substantially as and for the purposes hereinbefore described
and shown in Figures, 1, 2, 3, and 4, of the accompanying drawings.
2. Fixing the elevation indicator onto a flange formed on the hinged part of
the back-sight, a cover being provided on the outside circumferential part of the
indicator to be moved automatically, or by hand, substantially as and for the
purposes herein before described and shown in Figures, 6, 7, 8, 9, and 10, of
the accompanying drawings.
Dated this Fourteenth day of Anvil 1000