Year: 1897

page_text: Сущишин сашон доти 1
UTILOW IKON WORKS COMPANY OS. Petersburg,
Empire of Russia.
I, ALFRED JULIUS BOULT of 111 Hatton Garden in the County of Middlesex,
Chartered Patent Agent, 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 :—
The subject of the present invention is an apparatus for moving loads in any
desired rectilinear direction and which when not in use occupies very little space,
so that it can be conveniently used in place where the conditions of space do not
allow of any other similar apparatus being used.
In the accompanying drawing Fig. 1 shows the interior arrangement of the
apparatus partly in longitudinal section. Figs. 2 to 6 representing various
modifications of the construction according to the present invention.
The apparatus is constructed in the following manner:-
The
A tube D is rotatably arranged within a fixed hollow body K. The tube D is
provided at one end with a flange engaging either with a recess or a reduced portion
of the hollow body K in such manner that in either case the tube D is held so that
it can rotate but is prevented from moving in a longitudinal direction.
same end of the tube is suitably coupled with a driving wheel W which is caused
to rotate by means of any suitable motor or turning mechanism. At the opposite
end there is screwed soldered or secured in some other way in tube D a nut or
equivalent with which engages a hollow screw spindle c. The rear end of this
screw spindle is also provided with a flange by means of which it is guided in the
tube D; its front end being also internally formed into or provided with a nut 2
with which engages a hollow spindle b, the latter is also guided in the remaining
part of the hollow spindle c by means of a flange at its inner end and the internal
front end of said tubular spindle 6 is formed as a nut 3 for a screw spindle a the
flange of which is guided in the tube b.
On the head G or the screw spindle a is rotatably mounted a tube n which
encloses the tube D but is surrounded in its turn by a tube m which in its turn is

page_text: surrounded by a tube p fitting exactly in the hollow body or casing K. The
tubes n m p can move in a longitudinal direction relatively to one another but
cannot rotate independently from one another as they are either not of circular
cross section or if they are circular they are connected. with one another y
Tougitudinal bars or by keys or the like
If in the position indicated in Fig. 1 the tube D is turned in the direction opposite
to that of the screw-threads the hollow spindles b and c participate in its rotation
but the spindle a is prevented from turning by the above mentioned tubes nmp
and is therefore screwed out of the tubular spindle 6 until its flange comes in
contact with the nut 3; whereby the spindle 6 becomes screwed on fast against
the flange of the spindle and thus is prevented from continuing to participate
in the rotation of the tube D and the spindle c.
But the nut 3 is secured to the spindle & which now begins to be screwed out of
the spindle c and causes the latter to participate in its rotation as soon as its flange
strikes against the nut 2 thus causing also the spindle c to be screwed out from
the tube D as far as necessary..
4.4 * }
If now the head G acts directly or indirectly on a load to be raised or moved then
this load will be caused to move in the longitudinal direction of the apparatus.
The greatest distance of travel in this way is equal to the total length of the tube-D
and spindles c and b and a.
The number of screw spindles may of course vary.
The apparatus described may be used for moving loads on inclined horizontal or
vertical planes the direction of movement being easily altered, for the apparatus
can move loads in either direction for instance in metallurgical and other processes
where it is required to move material from the elevators into furnaces or conduits
leading to furnaces. Where there are several furnaces in one group the direction in
which the material must be forwarded often varies. In order to enable only one
apparatus to be used it may be pivoted as shown in Figure 2 representing the same
apparatus in two different positions.
If the apparatus is to be used as an ordinary winch for direct raising of loads
it is advisable to provide it with a driving device as shown in Fig. 3.
If it is attached to a carriage or truck it can also be used on travelling cranes
for raising loads in a vertical direction (Fig. 4).
it
"
If it is mounted on a fixed foundation and provided at the top with a platform
may be used as a tower for meteorological and other observations easily adjustable
its height being according to requirements.
If the apparatus is connected with an adjustable or extension ladder the latter
can be drawn out to the desired height and placed anywhere without any other
support so that it will be very convenient as a fire escape and for building purposes.
Such an adaptation is shown in Fig. 6.
Having now particularly described and ascertained in the nature of this inven-
tion as communicated to me by my foreign correspondent and in what manner
the same is to be performed I declare that what I claim is:-
1. Apparatus for raising and moving loads consisting of a fixed ivoted or
portable hollow casing as K in which telescopic tubes as m n p are guided so as
to be longitudinally movable but not rotatable the innermost or outermost tube
being connected with the head of a screw spindle a forming the central spindle of
a series of tubular spindles such as b c each of which has an internal screw thread
at its outer end and a projecting flange at its inner end fitting the tube surrounding
it in combination with an outer tube as D having no screw thread on its outside
and fitting into the innermost telescopic tube n its end flange being held fast by the
hollow casing K whereby this tube D may be rotated by a suitable driving device
but cannot move longitudinally substantially as described.
2. The combination and arrangement of parts constituting the complete

page_text: telescopic device for raising or moving loads substantially as described and illus-
trated in the accompanying drawings.
Dated this 22nd day of July 1897
BOULT & WADE,
Agents for the Applicant.