Improvements in Telescopic Sights for Rifles and other Fire Arms.
Year: 1887

page_text: Date of Application, 13th June, 1887
Complete Left, 13th Mar., 1888
Complete Accepted, 13th Apr., 1888
PROVISIONAL SPECIFICATION.
Improvements in Telescopic Sights for Rifles and other
Fire Arms.
I, HENRY WILLIAM HOLLAND of 98 Now Bond Street, London, Gun Maker do
hereby declare the nature of this invention to be as follows:---
The telescope I form of a strong tube with two projecting blocks or feet to rest
upon and be attached to the barrel of the fire arm. The eye piece tube I make to
slide into and be retained within the rear end of the outer tube. The rear portion of
the eye piece I make as usual capable of yielding and use a light spring to press it
into its normal position. The cross wiros I carry by a slide which can be moved
endwise in guides formed across the front end of the eye piece tubo.
To give the elevation required the slide carrying the cross wires can be moved up
or down by a screw passing through the outer tube and capable of being turned by a
head on its outer end-Upon the head of the screw may be marks to indicate the
elevation required for different distances or a pointer may be used to act with a fixed
index or other means might be adopted for moving the slide up or down. If the
slide carries two or more horizontal wires for different distances then by carrying
these wires in a vertical slide as above described the setting of the cross wires in
proper positions for giving the required sighting is readily effected.
To adjust the focus of the telescope for different distances or visions I mount the
object glass in a tube capable of being slidden to and fio within the front end of the
main tube I form a slot longitudinally through the end of the outer tube and cause
two pins which project from the inner tube to pass through the slot and come in front
and rear of a ring by which the outer tube is embraced or otherwise cause the ring to
engage with the inner tube. The ring I form as a nut to screw onto a screw thread
cut around the exterior of the outer tube so that by turning the ring the tube carrying
the object glass can be shifted end wise in either direction.

page_text: COMPLETE SPECIFICATION.
Improvements in Telescopic Sights for Rifles and other
Fire-arms.
I, HENRY WILLIAM HOLLAND of 98 New Bond Street, London, Gun Maker,
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 teloscope I form of a strong tube with two projecting blocks or foot to rest
upon and be attached to the barrel of the fire arm. The oye piece tube 1 make to
slide into and be retained within the rear end of the outer tube. The rear portion of
the eye piece I make as usual capable of yielding and use a light spring to press it
into its normal position. The cross wires I carry by a slide which can be moved
end wise in guides formed across the front end of the eye piece tube.
To give the elevation required the slide carrying the cross wires can be moved up
or down by a screw passing through the outer tube and capable of being turned by a
head on its outer end. Upon the head of the screw may he marks to indicate the
elevation required for different distances or a pointer may be used to act with a fixed
index or other means might be adopted for moving the slide up or down. If the
slide carries two or more horizontal wires for different distances then by carrying
these wires in a vertical slide as above described the setting of the cross wires in
proper positions for giving the required sighting is readily effected.
To adjust the focus of the telescope for different distances or visions I mount the
object glass in a tube capable of being slidden to and fro within the front end of the
main tube. I form a slot longitudinally through the end of the outer tube and cause
two pins which project from the inner tube to pass through the end slot and
come in front and rear of a ring by which the outer tube is embraced or otherwise
cause the ring to engage with the inner tube. The ring I form as a nut to screw onto
a screw thread cut around the exterior of the outer tube so that by turning the
ring the tube carrying the object glass can be shifted endwise in either direction.
To adjust the focus of the cross wires to different visions I use a screw collar on
the outer body of the telescope to move the eye piece backwards and forwards to suit
different oyes. The eye piece is kept in position by means of a screw passing
through the body of the telescope into a longitudinal slot in the eye piece or eye
tube.
In order that my said invention may be more fully understood and readily carried
into effect. I will proceed to describe the drawings hereunto annexed.

page_text: °
a is the tube of the telescope, it is provided with blocks bb to rest upon and be
attached to the barrel of the fire-arm. c is the eye-piece tube. This slides within
another tube d being pressed rearwards by the spiral spring e, its travel is limited by
the button c¹ which works in a slot in the tube d. The rear end of the tube d is in
the form of a ring or collar d¹ which works in a groove inside the screw nut To
admit of its being put on, the screw nut f is made in two parts as shown which are
connected together by the screw fl. This screw nut works upon a screw at the rear
end of the tube a. By turning the nut upon the tube a, the eye-piece c is moved
relatively to the tube and the cross wires can thus be brought correctly to focus. The
object glass is similarly made adjustable to alter the focus for different distances or
visions. For this purpose it is carried in a tube g which slides within the tube a. The
tube y carries a pair of pins g'g' which project through a slot in the tube a and
embrace the nut h which screws upon the tube a which is threaded to receive it. By
turning the nut the tube g, and with it the object glass is moved relatively to the
tubo a and thus the focus is altered.
In order to alter the sighting of the fire-arm according to range
I carry the cross
wires in a slide j which works in a dove-tailed groove in a ring fixed inside the
tube a of the telescope. The parts j and are shown separately in elevation and plan
in figures 3 and 4. The slide j has a hole j in it to receive the screw whose head is
outside the telescope. By turning the screw the block with the cross wires is raised
or lowered in its guides. The head of the screw is graduated for different ranges, as
shown in plan at figure 5, so that the cross wires can readily be set to any required
range.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed I declare that what I
claim is :-
1. A sight consisting of a telescope with cross-wires which can be raised or lowered
to adjust the sight for different ranges substantially as described.
2. The combination of the parts jk and l for adjusting the cross-wires substantially
as described.
3. The method of focusing the telescope by moving the object glass relatively to the
tube substantially as described.
4. The combination of the parts g, g' and h for focusing the telescope substantially
as described.
5. Adjusting the focus of the cross-wires to different visions substantially as
described.
6. My improvements in telescopic sights for rifles and fire-arms substantially as
described.
Dated this 12th day of March 1888.
HENRY W. HOLLAND.