Improvements in Clamps or Rests for Photographic Cameras and other Instruments similarly supported.
Year: 1892

page_text: Date of Application, 14th Dec., 1892
Complete Specification Left, 14th Sept., 1893-Accepted, 14th Oct., 1893
PROVISIONAL SPECIFICATION.
Improvements in Clamps or Rests for Photographic Cameras and
other Instruments similarly supported.
I, THOMAS BINNIE RALSTON of 234 Buchanan Street in the City of Glasgow,
Iron Merchant, do hereby declare the nature of this invention to be as follows:-
This invention has for its object to afford steady support for cameras and like
instruments upon walls, bars of railing or fencing and similar situations where it is
impracticable to employ an ordinary tripod stand or otherwise to obtain a steady
support for the instrument. The apparatus constituting the invention consists of a
horizontal bar the under side of which has a series of ratchet teeth made upon it.
This bar may in circumstances where a tripod stand is provided in conjunction with
the instrument be a section of one of the ordinary legs. At one end the bar has a
pin or stop against which a vertical leg strung on to it abuts. This vertical leg at
its upper end has jointed to it a stand or angled piece capable of movement through
an arc and to which the camera or other instrument is screwed in the ordinary
manner the stand being fixed in the required position by a thumb nut or equivalent
device upon its centre of movement or the stand may have a ball and socket joint
to enable it to be moved in every direction.
On the horizontal bar there is also strung a clamping leg which has a tooth
engaging with the teeth on the lower surface of the bar the said leg being capable
of movement backwards or forwards to suit the thickness of the wall, railing or
other situation to which the rest for the camera or other instrument is to be
secured, and the apparatus is fastened in position by a screw passed through the
said clamping leg and having a head or flange at its inner end which grips upon the
source of support. The screw is carried in a slot in the clamping leg and is capable
of adjustment vertically.
When the apparatus is to be attached to the top bar of a railing or other
comparatively thin horizontal or vertical body the clamping leg and the horizontal
ratchet bar may be dispensed with the leg which supports the camera or other
instrument being provided with a jaw and pinching screw to fix it in situation and
in some cases the said leg may have a stand or feet and be merely rested upon any
horizontal surface.
Dated this 13th day of December 1892.
CRUIKSHANK & FAIRWEATHER,
62, St. Vincent Street, Glasgow, Agents.
COMPLETE SPECIFICATION.
Improvements in Clamps or Rests for Photographic Cameras and
other Instruments similarly supported.
I, THOMAS BINNIE RALSTON of 234 Buchanan Street, in the City of Glasgow,
Iron Merchant, 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 to afford steady support for cameras and like
instruments when it is desired to use them upon walls, bars of railing or fencing and
similar situations and where it is impracticable to employ an ordinary tripod stand
or otherwise to obtain a steady support for the instrument.
The invention is illustrated on the accompanying drawings, Fig. 1 of which is a

page_text: side elevation, Fig. 2 a front elevation, Fig. 3 a plan of the apparatus, Figs. 4 and 5
respectively shewing its application to a wall and chair.
b
The apparatus constituting the invention consists of a horizontal bar A preferably
jointed at the middle the under side of which has a series of ratchet teeth a made
upon it. At one end the bar A has a jaw B strung upon it and secured in position
by screws or bolts. The open end of the jaw embraces one end of a leg B¹ which
is retained in position by a pin passed through it and through holes in the jaw.
There is also passed through the jaw B and through the bar A a clamping pin or
stud d having a thumb nut g tapped on to one end and on the said pin or stud there
is carried a spring jaw C capable of being turned through an arc vertically on the
pin d and by which the camera is carried. The upper part of the spring jaw C
forms the socket of a ball and socket joint for a screw or bolt f to which the
camera or other instrument is attached in the usual manner the ball and socket
joint of the bolt enabling it to be moved in any direction relatively to the rest.
When adjusted as desired the camera is maintained in position by a pinching pin h
on one of whose ends a thumb nut is threaded by turning which the sides of the
spring jaw C are drawn together thereby locking the bolt f and preventing the
camera from swivelling.
On the horizontal bar A there is also strung a clamping leg D which has a
tooth engaging with the teeth a on the lower surface of the bar the said leg being
capable of movement backwards or forwards to suit the thickness of the wall,
railing or other situation to which the rest for the camera or other instrument is to
be secured, and the apparatus is fastened in position by a screw j passed through
the said clamping leg and having a head or flange k at its inner end which grips
upon the source of support. The screw is carried in a slot in the clamping leg, the
length of which slot is indicated by the dotted lines at Fig. 1, so as to render it
capable of adjustment vertically.
When the apparatus is to he attached to the top bar of a railing or other
comparatively thin horizontal or vertical body the clamping leg D and the
horizontal ratchet bar A may be dispensed with the leg B' which supports the
camera or other instrument being provided with a jaw and pinching screw to fix it
in situation and in some cases the said leg may have a stand or feet and be merely
rested upon any horizontal surface.
The apparatus as shewn may be taken apart for purposes of package in transport
by withdrawing the pin 6 from the leg B' and sliding the leg D backwards off
the bar A.
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. The improved portable clamp or rest for photographic cameras and other
instruments similarly supported and consisting of the ratchet bar A. carrying the
adjustable spring jaw bracket C, a swivelling pin on which the instrument is
attached and clamping bars B', D, removably connected to the bar A, substantially
as described with reference to the drawings annexed.
2. A clamp for photographic cameras and other instruments similarly supported
consisting of a bar cr leg carrying an adjustable bracket C a swivelling pin / on
which the instrument is attached said leg having a clamping jaw to secure it or a
stand on feet to rest it in position substantially as hereinbefore described.
Dated this 13th day of September 1893.
CRUIKSHANK & FAIRWEATHER,
62, St. Vincent Street, Glasgow, Agents.

page_text: Date of Application, 14th Dec., 1892
Complete Specification Left, 14th Sept., 1893-Accepted, 14th Oct., 1893
PROVISIONAL SPECIFICATION.
Improvements in Clamps or Rests for Photographic Cameras and
other Instruments similarly supported.
I, THOMAS BINNIE RALSTON of 234 Buchanan Street in the City of Glasgow,
Iron Merchant, do hereby declare the nature of this invention to be as follows:-
This invention has for its object to afford steady support for cameras and like
instruments upon walls, bars of railing or fencing and similar situations where it is
impracticable to employ an ordinary tripod stand or otherwise to obtain a steady
support for the instrument. The apparatus constituting the invention consists of a
horizontal bar the under side of which has a series of ratchet teeth made upon it.
This bar may in circumstances where a tripod stand is provided in conjunction with
the instrument be a section of one of the ordinary logs. At one end the bar has a
pin or stop against which a vertical leg strung on to it abuts. This vertical leg at
its upper
end has jointed to it a stand or angled piece capable of movement through
an arc and to which the camera or other instrument is screwed in the ordinary
manner the stand being fixed in the required position by a thumb nut or equivalent
device upon its centre of movement or the stand may have a ball and socket joint
to enable it to be moved in every direction.
On the horizontal bar there is also strung a clamping leg which has a tooth
engaging with the teeth on the lower surface of the bar the said leg being capable
of movement backwards or forwards to suit the thickness of the wall, railing or
other situation to which the rest for the camera or other instrument is to be
secured, and the apparatus is fastened in position by a screw passed through the
said clamping leg and having a head or flange at its inner end which grips upon the
source of support. The screw is carried in a slot in the clamping leg and is capable
of adjustment vertically.
When the apparatus is to be attached to the top bar of a railing or other
comparatively thin horizontal or vertical body the clamping leg and the horizontal
ratchet bar may be dispensed with the leg which supports the camera or other
instrument being provided with a jaw and pinching screw to fix it in situation and
in some cases the said leg may have a stand or feet and be merely rested upon any
horizontal surface.
Dated this 13th day of December 1892
CRUIKSHANK & FAIRWEATHER,
62, St. Vincent Street, Glasgow, Agents.
COMPLETE SPECIFICATION.
Improvements in Clamps or Rests for Photographic Cameras and
other Instruments similarly supported.
I, THOMAS BINNIE RALSTON of 234 Buchanan Street, in the City of Glasgow,
Iron Merchant, 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 to afford steady support for cameras and like
instruments when it is desired to use them upon walls, bars of railing or fencing and
similar situations and where it is impracticable to employ an ordinary tripod stand
or otherwise to obtain a steady support for the instrument.
The invention is illustrated on the accompanying drawings, Fig. 1 of which is a

page_text: side elevation, Fig. 2 a front elevation, Fig. 3 a plan of the apparatus, Figs. 4 and 5
respectively shewing its application to a wall and chair.
The apparatus constituting the invention consists of a horizontal bar A preferably
jointed at the middle the under side of which has a series of ratchet teeth a made
upon it. At one end the bar A. has a jaw B strung upon it and secured in position
by screws or bolts. The open end of the jaw embraces one end of a leg B which
is retained in position by a pin b passed through it and through holes in the jaw.
There is also passed through the jaw B and through the bar A a clamping pin or
stud having a thumb nut y tapped on to one end and on the said pin or stud there
is carried a spring jaw C capable of being turned through an arc vertically on the
pin d and by which the camera is carried. The upper part of the spring jaw C
forms the socket of a ball and socket joint for a screw or bolt to which the
camera or other instrument is attached in the usual manner the ball and socket
joint of the bolt enabling it to be moved in any direction relatively to the rest.
When adjusted as desired the camera is maintained in position by a pinching pin /
on one of whose ends a thumb nut is threaded by turning which the sides of the
spring jaw C are drawn together thereby locking the bolt f and preventing the
camera from swivelling.
On the horizontal bar A there is also strung a clamping leg D which has a
tooth i engaging with the teeth a on the lower surface of the bar the said leg being
capable of movement backwards or forwards to suit the thickness of the wall,
railing or other situation to which the rest for the camera or other instrument is to
be secured, and the apparatus is fastened in position by a screw j passed through
the said clamping leg and having a head or flange k at its inner end which grips
upon the source of support. The screw is carried in a slot in the clamping leg, the
length of which slot is indicated by the dotted lines at 7 Fig. 1, so as to render it
capable of adjustment vertically.
When the apparatus is to be attached to the top bar of a railing or other
comparatively thin horizontal or vertical body the clamping leg D and the
horizontal ratchet bar A may be dispensed with the leg B which supports the
camera or other instrument being provided with a jaw and pinching screw to fix it
in situation and in some cases the said leg may have a stand or feet and be merely
rested upon any horizontal surface.
The apparatus as shewn may be taken apart for purposes of package in transport
by withdrawing the pin b from the leg B' and sliding the leg D backwards off
the bar A.
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. The improved portable clamp or rest for photographic cameras and other
instruments similarly supported and consisting of the ratchet bar A carrying the
adjustable spring jaw bracket C, a swivelling pin on which the instrument is
attached and clamping bars B', D, removably connected to the bar A, substantially
as described with reference to the drawings annexed.
2. A clamp for photographic cameras and other instruments similarly supported
consisting of a bar cr leg carrying an adjustable bracket C a swivelling pin f.on
which the instrument is attached said leg having a clamping jaw to secure it or a
stand on feet to rest it in position substantially as hereinbefore described.
Dated this 13th day of September 1893.
CRUIKSHANK & FAIRWEATHER,
62, St. Vincent Street, Glasgow, Agents.