Improvements in Apparatus for the Transmission of Tractive or Compressive Force in Varying Directions.
Year: 1888

page_text: Date of Application, 3rd Sept., 1888.
Complete Specification Left, 3rd June, 1889-Accepted, 27th July, 1889
PROVISIONAL SPECIFICATION.
Improvements in Apparatus for the Transmission of Tractive or
Compressive Force in Varying Directions.
I, OTTO KRELL of St. Petersburg, Russia, manager of the St. Petersburg metal
factory, do hereby declare the nature of this invention to be as follows:-
:-
The present invention relates to an apparatus for the transmission of power either
tractive or by pressure in any desired direction in the same or in different planes.
To this end the apparatus consists of a series of flexibly jointed links which are
guided in a tube which may be curved or coiled in any desired direction; thus the
power may be transmitted in any desired direction. As the apparatus is to be used
for the transmission of tractive and pressure power, the transmitting part is not
only in the form of a chain, but also in the form of a flexible rod and must therefore
be guided in a tube.
The links of this chain or flexible rod consist of short rods formed at both ends
with balls or preferably at one end with a ball, while the other end is screwed into or
otherwise suitably fixed to heads formed with the socket for the ball of the next link.
The balls are retained in the sockets by means of screw rings screwed into the heads
and surrounding the balls. Each head is provided with a series of forked lateral
projections for the reception of pins on which are mounted rollers which bear against
the inner walls of the tube in which moves the chain or flexible rod.
For the transmission of power from one point to the other, the guide tube is
arranged in any desired or convenient manner between these points, and by pulling
or pushing the end of the chain or flexible rod the whole of the tractive or pressure
power is transmitted to the other point, minus the loss of the small rolling friction of
the guide rollers against the walls of the tube.
.
The dimensions of the different parts of the apparatus may vary according to the
power it is desired to transmit or other circumstances as may also the number of the
guide rollers of each head and the diameter of the tube.
The above described apparatus permits the transmission of the smallest power as
also that of the greatest if the dimensions of the different parts are in accordance with
the strain.
DL: 0.1
Contam 1000
COMPLETE SPECIFICATION.
Improvements in Apparatus for the Transmission of Tractive or
Compressive Force in Varying Directions.
I, OTTO KRELL of St. Petersburg, Russia, manager of the St. Petersburg metal
factory, 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 present invention relates to an apparatus for the transmission of power either
by compression or tension in any desired direction in the same or in different
planes.
•
To this end the apparatus consists of a series of flexibly jointed links which are
guided in a tube which may be curved or coiled so that the power may be transmitted
in any desired direction. As the apparatus is to be used for the transmission
of power either by compression or tension the transmitting part is not only in the
form of a chain, but also in the form of a flexible rod and must therefore be guided in
a tube.

page_text: סיייני
Figs. and 2 are a longitudinal and cross section respectively of part of the
apparatus.
Figs. 3 and 4 are respectively an elevation and a plan of the apparatus on a
smaller scale.
Figs. 5 and 6 are respectively a longitudinal and cross section of a modified
form.
The links of the chain or flexible rod consist of short rods a formed at one end with
a ball while the other end is screwed into or otherwise suitably fixed to heads c
formed with a socket for the ball of the next link. The balls are retained in the
sockets by means of screw rings d screwed into the heads and surrounding the balls.
Each head is provided with a series of forked lateral projections e for the reception
of pins on which are mounted rollers which bear against the inner walls of the tube g
in which moves the chain or flexible rod.
For the transmission of power from one point A to the other B the guide tube y is
arranged in any desired or convenient manner between these points, and by pulling
or pushing the end of the chain or flexible rod the whole of the tractive or pressure
power is transmitted to the other point, minus the loss of the small rolling friction of
the guide rollers against the walls of the tube.
In some cases the guide rollers f may be omitted altogether if desired and the
sockets in which the balls are retained are then of partly spherical form and slide in
the tube without any guide rollers. This modified form is represented in Figs. 5
and 6. The same as in the above described form each of the links of the chain
or flexible rod consists of a short rod a formed at one end with a ball and
with its other end screwed or otherwise fixed into a head c which contain the
socket for the ball of the next link. The balls are retained by means of screwed
rings d the outside of which is formed partly spherical and slides in the tube without
any guide rollers.
The dimensions of the different parts of the apparatus may be varied according to
the power it is desired to transmit or other circumstances, as may also the number of
the guide rollers of each head and the diameter of the tube.
The above described apparatus permits the transmission of the smallest power as
also that of the greatest if the dimensions of the different parts are in accordance with
the strain.
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 I
claim is ;-
1. In apparatus for the transmission of power either by compression or tension a
series of links or short rods connected together by ball and socket joints and provided
with guide rollers, which links or rods are guided in a tube which may be curved or
coiled in any desired direction, substantially as described and illustrated in the
accompanying drawings.
2. In an apparatus such as mentioned in the last preceding clause the employ-
ment of partly spherical bodies in substitution for the guide rollers of the several
links connected by ball and socket joints the said bodies being connected with the
links or short rods and sliding in the guide tube and forming at the same time
the socket pieces for the balls substantially as described and illustrated in the
accompanying drawings.
Dated this 3rd day of June 1889.
W. P. THOMPSON & BOULT,
Agents.