Photographic Apparatus
Year: 1888

page_text: Date of Application, 9th June, 1888
Complete Specification Left, 26th Jan, 1889
Complete Specification Accepted, 2nd Mar, 1889
Photographic Apparatus
I, JOHN WILLIAM TURNER, of Heathfield Street, Bold Street, Liverpool, in the
county of Lancaster, Maker of Photographic apparatus, do hereby declare the nature
of this invention to be as follows
-
The object of this invention is to construct photographic cameras so that the back
or the front can be easily moved outwards or inwards, and can be rigidly and quickly
fistened at any desired point of the base board
For this purpose I affix to, or form wholly or partly out of, the base board, at each
side a rail or slide undercut on one or both sides so as to leave a groove or grooves,
in which and on the rails are placed blocks or pieces free to slide backwards and
forwards along the rails The back of the camera is attached to one end of the sliding
pieces, by a hinge or pivot, and to the other end by stretchers of the ordinary kind"
Between the slid ng pieces and the rails, and moving with the former, are placed
plates which, when it is desired to fix the back of the camera at any point, are forced
against the rails by means of wedges, thereby securely holding the pirts in position
If desired the above described method of fixing may be applied to the front of the
camera instead of the back and a modification thereof can be employed for securing
the legs, stands, or other parts of photographic apparatus
Per pro JT KING,
W B Johnson,
Agent

page_text: I, JOHN WILLIAM TURNER, of Heathfield Street, Bold Street, Liverpool, in the
County of Lancaster, Maker of Photographic apparatus, do hereby declare the nature
of this invention and in what manner the same is to be performed, to be par-
ticularly described and ascertained in and by the following statement
The object of this invention is to construct photographic cameras so that the back
or the front can be easily moved outwards or inwards, and can be rigidly and quickly
fistened at any desired point of the base board
For this purpose I affix to or form wholly or partly out of the base board, at each
side, a rail or slide undercut on one or both sides so as to leave a groove or grooves,
in which and on the rails are placed blocks or pieces free to slide backwards and 1
forwards along the rails The back of the camera is attached to one end of the
sliding pieces by a hinge or pivot, and to the other end by stretchers of the ordinary
kind Between the sliding pieces and the rails, and moving with the former, are
placed plates which, when it is desired to fix the back of the camera at any point, are
forced against the rails by means of wedges, thoroby securely holding the parts in 1
position
DESCRIPTION OF THE DRAWINGS
a base
Fig 1 is a side elevation and Fig 2 a front elevation of a photographic camera
under my invention Fig 3 is a sectional view of the locking mechanism
board brails or slides undercut at both sides c blocks or pieces fitting the rails or
slides and free to move to and fro thereon d back of camera hinged or pivotted at e
to lugs on the sliding blocks or pieces c g stretchers hinged or pivotted at h to
lugs on the blocks or pieces c and secured in slides, in the back d of the camera by
screws and nuts k in the usual manner 7 loose plates fitting within recesses in the
blocks or pieces c and resting on the rails b m wedge bolt passing through lugs n
on the blocks or pieces c
The camera back is moved along the base board into the
required position and is secured by moving the wedge bolts until the plates are forced
against the rails
The opening and closing of the camera is performed in the usual
manner
If desired the above described method of fixing may be applied to the front of the

page_text: camera instead of the back, and a modification thereof can be employed for securing
the legs, stands, or other parts of photographic apparatus
Having now particularly described and ascertained the nature of the said inven-
tion and in what manner the same is to be performed I declare that what 1
claim is
Constructing Photographic Cameras and apparatus substantially in the manner and
for the purnose set forth