Improvements in Lorgnettes and such like Instruments.
Year: 1890

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Date of Application, 13th May, 1890-Accepted, 14th June, 1890
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Ja loob 1 COMPLETE SPECIFICATION ed ai bon noidnovni
Improvements in Lorgnettes and such like Instruments. ai mislo 1
I JAMES GREEN of Burwood near Sydney in the Colony of New South Wales
Jeweller do hereby declare the nature of this inventioniland: in what manner the to
same is to be performed to be particularly described and ascertained in and/byus
the following statement :-
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Oi This invention relates to Lorgnettes or Opera' Glasses and, such like instruments for
viewing distant objects and it has been devised in order to constr de finanza
more convenient
and handy forms of such lorgnettes as are described and
imed in the specineazon
attached to my previous application for British Letters Patent filed on the
8th day of
and bulli
April 1890 No. 5333.
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azed and
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object
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I These present improvements in lorgnettes and such like, instruments consist first in
the particular combinations and arrangements
glasses, of an extended
particular combinations and arrangements
20
with th
casing containing mirrors or
the eye
1oses thei
Juh
parts.
P
object glasses and
and
the mirrors of the men hereinafter more particularly described |
50explained my
order that this, invention
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pinion.
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11 I. be clearly understood reference'
made to the drawings he
"herewith in Figure 1 is a plan of a
a letto constructed
cording to my present improvements. Figure 2 is a cross section of same in
Figure 1. Figures 3 and 4 are sectional elevations on lines ad
sa ad is badBHK DA
b
čin Figure 1 while Figure15 is a detail plan do to yah tail-ridT ɛida” botuⱭ
A Aare telescopic, opera glasses. B B mirrors or reflectors. C carrier plate.
D spring bar. A¹ A¹ arejeye, glasses and lens. A2 A2 object glasses. A³ focus
screw.
wAcylindrical, extension: A and As(apertures: A A sliding shutters.
As A grooves or guides. A hooks and push knobs. A10 A10 springs. All slot way.
B' bar frame. B²-carrier -hinge plate. B³-hinge pivotted-at-BB-sector wheel.
C₁ is thumb screw and
Cspring.
spring Knöito
sector wheel.
C¹³ bearing. Ce crank pin. C7 connecting rod. 08 resistance pieces. D¹ bent ends.
When the mirrors or reflectors are in use the observer is enabled to sit with his
back to the object or at any angle at which he desires to view the object which is
reflected upon the mirrors or reflectors through the apertures A° and A in the circular
casing A' the focus of the glasses being adjusted in the usual manner by means of the
focus screw A³. The position of the mirrors with the central line of the instrument
is adjusted by turning the thumb screw (and causing the tooth-pinion C¹³ by gearing
with the sector wheel B' to move the hinge B³ upon pivot B until the mirrors or
5 reflectors have attained the required angle to include the object to be viewed. When
the mirrors or reflectors are not in actual use and it is desirable to use the lorgnette
in the ordinary way or when it is desirable to alter the angle of the mirrors relative to
the plane of the object glasses the thumb-screw and spring knob C is pressed upwards
so as to compress the spring (2 and lift the toothed pinion C³ out of gear with the
sector wheel B and into gear with the sector wheel C and then partially revolving
said thumb screw C¹ the carrier plate B2 is moved backwards or forwards on hinge B³
by means of connecting rod C' and the mirrors thereby adjusted at any desired angle
or drawn down into the bottom of the casing A* as shown in dotted lines in Figure 2.
The slot way A" allows of free movement of bar frame B₁ either up or down or
5 laterally. The shutters A' are then drawn over the apertures A and A sliding in
grooves A until the bent ends D¹ of spring bar D enter the hooks of knobs A and
hold the shutters in a closed position. When now the thumb screw C₁ is partially
revolved say with wheel C in gear with sector wheel C to raise the mirrors into a
"used" position the boss of said thumb screw C¹ presses on the bar D causing said
bar to bend between the angle pieces Os so that the ends D¹ will spring outwards and
7531

page_text: release knobs A° so that the springs A will cause the shutters to fly back and open
the apertures A³ and Aº.
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-
First. The combination and arrangement with a lorgnette or binocle having a pair
of mirrors such as B of a cylindrical extension such as A* having orifices such as A
and A and a sliding shutter such as A substantially as herein described and explained
and as illustrated in the drawings.
:
Second. The combination and arrangement with a lorgnette or binocle having a
cylindrical extension of a pair of mirrors or reflectors such as B bar frame such as B¹
carrier plate such B2 hinge such as B3 B4 sector wheel such as B pinion such as C³
and thumb screw such as C' substantially as herein described and explained and as
illustrated in the drawing.
Third. The combination and arrangement with a lorgnette or binocle having a
cylindrical extension with orifices such as A and A and sliding shutters such as A
of guides such as A8 hooks or push knobs such as A³ springs such as A hooks or bent
ends such as D¹ spring bar such as D resistance pieces such as CB substantially as
herein described and explained and as illustrated in the drawing.
Fourth. The combination and arrangement with a lorgnette or binocle having a
cylindrical extension of a carrier plate such as Ca thumb screw and spring knob CC
toothed pinion such as C³ sector such as C crank pin such as Ce connecting rod such
as C' hinge plate such as B2 and bar frame such as B' substantially as herein described
and explained and as illustrated in the drawing.
Dated this Thirty-first day of March One thousand eight hundred and ninety
JAMES GREEN.
Haseltine, Lake & Co.,
45, Southampton Buildings, London, Agents for the Applicant.