Year: 1897

page_text: Date of Application, 22nd Feb., 1897
Complete Specification Left, 24th Sept., 1897-Accepted, 24th Dec.,
1897
I, GASTON SEGUY, of 53 Rue Monsieur le Prince, Paris, in the Republic of
France, Engineer, do hereby declare the nature of this invention to be as follows:-
"
My invention consists of a complete portable camera fitted for "Roentgen rays
photography and fully equipped with all accessories, including a storage or other
battery, or generator of electricity an induction coil, a 'tube-arrangement and a
focusing instrument; all compactly contained in a portable case or box of small
size.
The apparatus consists of a case or box divided by partitions into four com-
partments, wherein there are contained, respectively, the induction coil, the storage
or other battery, or electric generator, a Crookes' tube with its support, and the
focusing instrument.
The compartment in which the focusing instrument is placed is situated in the
rear of the compartments enclosing, respectively, the induction coil and the battery
or generator. The case is adapted to be closed and opened by means of hinged
doors, the first and second doors covering the end and top respectively of a space
(for the Crookes tube) in front of the coil and generator containers and the third
and fourth doors covering the ends of these containers respectively. When the
case is open, the third and fourth doors afford access to the induction coil and
battery or generator. When the first door is turned down on its hinges, the
holder, supporting the Crookes tube can be removed from its compartment by
sliding its support in slide-ways formed in the case-bottom and extended over
the said first door. These slide-ways at the same time enable the requisite stability
to be imparted to the holder or support when the case is closed, and also protect
the Crookes tube from breakage or injury whilst being carried from place to place.
In the centre of the third door there is provided a sleeve affording a passage
for a rod carrying a projection which is adapted to come into contact with a contact
spring when the said rod is pulled.
The said spring is connected by a wire to one pole of the battery or generator and
the said rod is connected by a wire to one of the binding posts of the induction
coil, while the other post of the said coil and the other pole of the battery or
generator are connected together by another wire. Wires connect the electrodes
of the Crookes tube to the posts of the induced current circuit of the coil. An
open circuit is thus formed by moving the projection on the aforesaid rod into
contact with the spring. The said rod carries an abutment or stop of insulating
material, which when the door is closed bears upon and deflects a
spring make
and break contact so that when the rod is pulled for the purpose of closing the
circuit, the said spring contact being released, receives an impulse and continues
to vibrate.
The focusing instrument is simply a camera obscura with bellows, wherein in
place of ground glass there is a sheet of paper or other material coated upon its

page_text: inner surface with phosphorescent material. This camera may be folded up and
placed in the compartment provided for its reception in the case.
The Crookes tube may be brought to any position by means of linked rods.
In using the apparatus the object to be examined is interposed between the
Crookes tube and the frame of the focusing camera to the inside of which the 5
sheet coated with phosphorescent material, is applied; then contact is made by
pulling the aforesaid rod, whereby the inauction coils set in operation.
Dated this 22nd day of February 1897
JOHNSONS & WILLCOX
47 Lincoln's Inn Fields, London, W.C., Agents.
way Apparatus.
I, GASTON SEGUY, of 53 rue Monsieur le Prince, Paris, in the Republic of
France, Engineer, 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 relates to a portable apparatus intended for the application of
the Roentgen Rays. It comprises a complete installation consisting of a battery
or accumulator, an induction coil or transformer of secondary induction, a bi-
anodic Crookes tube for producing the X rays and an inspecting apparatus, the
whole forming a single portable apparatus.
In the annexed drawings
Fig. 1 shows a longitudinal section of the apparatus as it appears when open,
and ready for operation.
Fig. 2 shows the inspecting apparatus composed of a dark chamber in the form
of bellows, analogous to a photographic camera and provided on the front with a
viewing glass Q adapted to the form of the human face by means of a spring
complying with its different conformations, the border of this viewing glass being
provided with velvet or any other suitable material.
The bottom P of the viewing glass is movable and constitutes a screen coated
with a thin layer of platino-cyanide of silver and of platinum, which substance
becomes efflorescent under the action of the X trays. The screens can be coated
with any other efflorescent or phosphorescent substance.
The apparatus shown in Fig 1 is composed of a box divided by partitions into 4
compartments in which the induction-coil or the transformer of secondary induc-
tion, the battery or accumulator, the bi-anodic tube with its support and the
inspecting glass are respectively placed. The compartment, in which the latter
is placed, is behind the compartments of the induction coil and of the battery,
and is not shown on the drawing. The box can be opened by means of hinged
doors A. B. which in Fig 1 are represented open. When the box is open, the
doors C and D enable the induction coil and the battery to be approached. The
door A. being turned down, that is to say opened, a support F carrying a Crookes
tube G can be removed from its compartment F1 as it is constructed to slide on
rails provided on the bottom of the box and prolonged on the door A. These
rails also when the box is closed, to render the support F stable and prevent the
tube G from being broken when the apparatus is moved.
The door C is provided in its centre with a socket through which a rod H slides
carrying an inclined nose I, which can be brought into contact with a spring J,
drawing out the rod H by means of its handle K.
on
The spring J is connected by a wire a with one of the poles of the battery.

page_text: The rod H is connected by the wire b with one of the terminals of the induction
coils.
The other terminal of the coil and the pole of the battery are connected together
by the wire C. Finally, the wire d and e connect the electrodes of the Crookes
tube with the terminals of the induced current from the coil. An open circuit
is thus formed which can be closed by establishing the contact of the nose I with
the spring J. The rod H carries a plate L of insulating material, which presses
on the hammer M of the coil when the door is closed and contact is broken.
the rod H is pulled out in order to establish contact the hammer M being sharply
released receives an impulsion and continues striking.
When
When the inspecting apparatus is not required it can be folded up and placed
in its compartment. The tube G can be placed in any position, by means of the
articulated rods N and O.
1
The object to be examined is placed between the tube G and the frame P in
the interior of which there is applied a sheet of paper coated with phosphorescent
material, contact is established by pulling out the handle K which operates the
induction coil, and the effect is seen through the opening of the viewing glass Q.
My system by means of the viewing glass, which intercepts any other light, even
the visible light from Crooke tube, enables the efflorescence of the screen to be
much more distinctly seen.
In order to examine heavy objects difficult of removal, which would otherwise
necessitate their being placed in very large dark chambers, iny apparatus can be
utilised for examining these objects in full day light without having to remove them.
For examining wounded and sick persons it is not necessary with my apparatus
to transport them into a dark chamber, as the operator can examine them at any
place which saves them the useless suffering caused by their being moved.
Having now particularly described and ascertained the nature of this inven-
tion and in what manner the same is to be performed I declare that what I
claim is:
1. A portable apparatus, in which the pieces are not only juxtaposed but form
also a combination for the study of the X rays, this apparatus being formed by
a box of wood or any other convenient material divided into four compartments in
which there are lodged respectively an induction coil or transformer of secondary
induction, a battery or accumulator, a bi-anodic, Crookes tube with its articulated
support, a manipulator forming at the same time a commulator for the current
and starter of the induction coil, with a folding inspecting apparatus, the whole
being easily portable and allowing of study of the X rays, without use of a dark
room.
2. The combination of an inductor coil or transformer of secondary induction
and of a battery or accumulator with a rod and a support carrying a bi-anodic
Crookes tube, for the purpose of forming an open circuit which can be closed by
pulling a handle of the same rod, the said rod giving at the same time the start
to the make and break contact spring of the induction coil.
3. The apparatus as a whole and in its details forming a portable whole and allow-
ing of making in full day light the examination of the X rays either for large
objects or for patients who can thus be examined without transporting or dis-
placing them, the said apparatus being substantially as set forth.
Dated this 24th day of September 1897.
HERBERT HADDAN & CO
Agents to Applicant
18 Buckingham Street Strand, W.C. London.
HERBERT HADDAN & CO
Agents to Applicant
18 Buckingham Street Strand, W.C. London.