Improvements in Folding Photographic Cameras.
Year: 1886

page_text: Improvements in Folding Photographic Cameras.
I, ARTHUR RAYMENT of 36 Beatrice Road Finsbury Park in the County of
Middlesex Optician do hereby declare the nature of this invention to be as
follows:-
This Invention has for its object improvements in folding photographic cameras
so that the parts may be more easily and readily adjusted.
In carrying my invention into practice the camera front and lens is made
adjustable by moving it on slides fastened on their inner edges to the base of the
camera frame the front having a rod or bar arranged on each side with a suitable
foot or catch which passes below the outer edges of the slides upon which they can
be tightened or locked by means of a set screw on the rod or bar, by this means
the front or focusing part of the camera can be readily moved into position and
locked in that position very quickly.
Having been thus secured the front can be further adjusted by a rack and
pinion movement in the ordinary manner. This combination of the adjustable
front part of the camera secured to the outer edges of the slides on which it
is moved into position and locked, can be adapted to photographic cameras of
various kinds.
TONGUE & BIRKBECK,
34, Southampton Buildings, London, W.C.,
Agents for the Applicant.

page_text: Improvements in Folding Photograpnic Cameras.
I ARTHUR RAYMENT of 36 Beatrice Road Finsbury Park in the County of
Middlesex Optician 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:—
This Invention has for its object improvements in folding photographic cameras.
In carrying my Invention into practice the camera front (carrying the lens) is
made adjustable by moving it on slides fastened on their inner edges to the base
of the camera frame the front having a rod or bar arranged on each side with a
suitable foot or catch which passes below the outer edges of the slides upon which
they are tightened or locked by means of a set screw on the rod or bar, by this
means the front or focussing part of the camera can be readily moved into position
and locked in that position very quickly.
Having been thus secured the front can be further adjusted by a rack and
pinion in the ordinary manner. This combination of the adjustable front part of
the camera secured to the outer edges of the slides on which it is moved into
position and locked can be adapted to photographic cameras of various kinds.
And in order that my invention may be clearly understood and readily carried
into practice I will proceed to describe the same with reference to the accompanying
drawings.
DESCRIPTION OF THE DRAWINGS.
Figure 1 shows an exterior side elevation (with the front carrying lens in
position) of my improved folding camera with taper bellows. Figure 2 shows a
sectional front elevation of the camera front and frame thereof and Figure 3 is a
plan of the camera.
a. a. are the slides or guides fastened at their inner edges a¹ a¹ to the sliding
part b of the folding base c of the camera, d is the head on the pinion d' actuating
à rack fastened on the underside of and adjusting the sliding part b carrying the
fronte having the lens mounted thereon at e¹. ff are the rods or bars each having
a foot or catch g passing beneath the outer edges a² of the slides or guides a upon
which they are tightened or locked in the required position by the screws or nuts h
at the top of the front e, the taper-bellows j being secured thereto in the ordinary
manner the front e carrying the bellows being slid along the guides a back into
the camera case k, and the base part c (which is fixed in position when open for
use by the set screw 1 runuing in the slot m of the case ) is then folded up and is
secured by a catch to the case, thus the whole camera is very compact and readily
adjusted for use and put away thereafter.
The guides or slides a are formed with indicator lines or marks thereon so that
the camera front can be readily set perfectly square with the sliding part b, and
by using taper-bellows with my other improvements I can if desired obtain two
photographs on one plate by placing a partition down the centre of the taper-
bellows as is well understood and adjusting the lens on the front as by my
improvements I obtain a broader lens carrying front e than heretofore has been
obtained on taper-bellows and consequently a larger lens aperture e¹.

page_text: 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
1st. The improved method of securing the lens carrying front of a photographic.
camera (with taper-bellows) to the outer edges of the slides or guides on which it
moves and is adjusted substantially as and for the purposes herein before described
and represented in the accompanying drawings.
2nd. The improved general arrangement combination and construction of photo-
graphic cameras substantially as hereinbefore described and represented in the
accompanying drawings.