New or Improved Apparatus for Conveying desired Objects or Packages from place to place.
Year: 1897

page_text: Date of Application, 24th Mar., 1897
Complete Specification Left, 24th Jan., 1898-Accepted, 26th Feb., 1898
PROVIDIUNAL SPECIFICATION.
A New or Improved Apparatus for Conveying desired Objects or
Packages from place to place.
We, ALEXANDRE WOLF and BARTHOLOMEUS KALLOS, both of Erzsébetkörút, 21,
Budapest VII., Hungary, Engineers, do hereby declare the nature of this inven-
tion to be as follows:
The object of this invention is to despatch urgent documents or packages
rapidly and over long distances. It is clear that this problem could be solved
by a rapidly moving electric car through a closed tunnel or tube but the solution
of the question is made more difficult by the fact that when going at a rate of
about 250 kilometres per hour the resistance of the air amounts to more than
90 per cent. of the total resistance.
If we lessen or remove all together the resistance of the air we shall only
require one tenth part of the power; whereby such saving of weight and space
will be obtained as to make a solution of this problem considerably easier..
The resistance of the air can best be met by removing it entirely and per-
manently.
.
This is brought about by exhausting once for all as far as possible the air from
the tube which must consist of some sufficiently firm and air tight material:
Any air which enters subsequently must always be removed by pumps presumed
to be permanently at work.
These are the tubes in which the cars or cases are to run. The tubes consist of
several well insulated sections with this object that if the air enters
any one of these sections in consequence of a puncture, the vacuum is maintained
in the other sections.
It will be seen that by this means a car or package may be sent along the
tube or the like by any suitable motive power and a great increase of speed
is obtained owing to the partial or almost complete vacuum formed in front of
the car or package.
Dated this 92nd dow of Mach 1907
A New or Improved Apparatus for Conveying desired Objects or
Packages from place to place.
We,- ALEXANDRE WOLF and BARTHOLOMEUS KALLós, both of Erzsébetkörút 21,
Budapest VII., Hungary, Engineers, do hereby declare the nature of this inven-
[Price 8d.1

page_text: tion and in what manner the same is to be performed, to be particularly described
and ascertained in and by the following statement:-
The object of this invention is to despatch urgent documents or packages
rapidly and over long distances. It is clear that this problem could be solved
by a rapidly moving electric car through a closed tunnel or tube, but the solution
of the question is made more difficult by the fact that when going at the rate of
about 250 kilometres per hour the resistance of the air amounts to more than
90 per cent. of the total resistance.
If we lessen or remove altogether the resistance of the air we shall only
require one tenth part of the power; whereby such saving of weight and space
will be obtained as to make a solution of this problem considerably easier.
The resistance of the air can best be met by removing it entirely and per-
manently.
This is brought about by exhausting once for all as far as possible the air from
the tube which must consist of some sufficiently firm and air tight material.
Any air which enters subsequently must always be removed by pumps. presumed
to be permanently at work.
These are the tubes in which the cars or cases are to run. The tubes consist of
several well insulated or separated sections with this object, that if the air enters
any one of these sections in consequence of a puncture the vacuum is maintained
in the other sections.
It will be seen that by this means a car or package may be sent along the
tube or the like by any suitable motive power and a great increase of speed
is obtained owing to the partial or almost complete vacuum formed in front of
the car or package.
Having now particularly described and ascertained the nature of our said
invention, and in what manner the same is to be performed, we declare that what
we claim is:—
1. The removal or rarefaction of the air in the tube in front of moving cases
or cars therein for the purpose of increasing their speed; said removal or rare-
faction of air being effected by the employment of suitable pumps.
out