Improvements in the Manufacture of Photographic Camera Stands.
Year: 1898

page_text: PROVISIONAL SPECIFICATION.
Improvements in the Manufacture of Photographic Camera Stands.
I, JOSEPH FROST, of 17, Tanfield Road, Croydon, in the County of Surrey,
Photographic Apparatus Manufacturer, do hereby declare the nature of this
invention to be as follows:-
My invention relates to the construction of a new or improved photographic
camera-stand so far as concerns the method of raising and lowering the top
sliding portion thereof on which the camera itself stands.
The general make and shape or design of the stand is immaterial, and need
not differ from those in present use, but instead of fitting thereto any of the
existing appliances for raising the height of the sliding top portion (which is
the means of adjusting the height of the camera itself) I attach weighted pulleys
to such top portion for the same purpose.
The amount of weight attached to the pulleys should be either exactly or approxi
mately the weight of the top sliding portion of the stand plus that of the
camera upon it, so that the one weight neutralises the other, and so allows the
operator to raise and lower the camera by means of a mere touch, and with the
greatest ease, rapidity and accuracy.
When the desired height has been obtained, the top sliding portion is firmly
fixed at such height by means (as heretofore) of a flat-ended wooden screw or by
any other suitable means.
The pulleys can be weighted either by means of directly fixed weights, or,
preferably, by attaching thereto a receptacle into which the exact necessary
weight of shot, scrap, sand, water or other heavy substance or matter can be
placed, and which would admit of variation whenever cameras of different weights
were used.
The size, number, position and general character of the pulleys are mere
matters of convenience and will in the main be regulated by the size, weight
and shape of the stand.
1 1
1000
COMPLETE SPECIFICATION.
Jmprovements in the Manufacture of Photographic Camera Stands.
I, JOSEPH FROST, of 17, Tanfield Road, Croydon, in the County of Surrey,
Photographic Apparatus 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:-
My invention relates to the construction of a new or improved photographic

page_text: camera-stand so far as concerns the method of raising and lowering the top
sliding portion thereof (A) (see the accompanying drawings) on which the camera
itself stands.
The general make and shape or design of the stand is immaterial, and need
not differ from those in present use, but instead of fitting thereto any of the
existing appliances for raising the height of the sliding top portion (which is
the means of adjusting the height of the camera itself) I accomplish the same
result by attaching to the sliding top (A) (which expression includes the per-
pendicular sides (Å) of the sliding top which are part of it and move up and
down with it) as near the bottom of the perpendicular sides as possible, wires
or cords (C) which are brought upwards over pulley wheels (B) set in the
fixed part of the stand as near its top as possible, such wires or cords being
fastened at their extremities to a weight or weights, which latter is or are
accordingly made to act as a balance (over the fixed pulley wheels and by means
of the wire or cord) against the weight of the sliding top, so that as the weights
go down the sliding top goes up, and vice versa.
The amount of weight attached to the cords (C) passing over the pulleys (B)
should be either exactly or approximately the weight of the top sliding portion
of the stand (A) plus that of the camera upon it, so that the one weight
neutralises the other, and so allows the operator to raise and lower the camera by
means of a mere touch, and with the greatest ease, rapidity and accuracy.
When the desired height has been obtained, the top sliding portion is firmly
fixed at such height by means (as heretofore) of a flat-ended wooden screw (1)
or by any other suitable means.
The cords (C) can be weighted either by means of weights attached to each, or,
preferably, by attaching thereto (as E in drawing) a receptacle into which the
exact necessary weight of shot, scrap, sand, water, or other heavy substance or
matter can from time to time be placed, and which would admit of variation when-
ever cameras of different weights were used.
The size, number, position and general character of the pulleys are mere
matters of convenience and will in the main be regulated by the size, weight
and shape of the stand.
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-
1. The application to, or combination with, camera stands, of the method of
adjusting the height thereof which is herein set forth, or substantially identical
therewith.
2. The application to, or combination with, camera stands of pulleys cords and
weights as a method of raising or lowering the height of the top or adjustable
portions thereof.