Improved Pneumatic Dispatch.
Year: 1888

page_text: Date of Application, 20th Nov., 1888
Complete Specification Left, 21st Aug., 1889-Accepted. 16th Nov.. 1889
PROVISIONAL SPECIFICATION.
Improved Pneumatic Dispatch.
I JOHN KELLY of Pyrmont House, Green Lanes, Winchmore Hill, Middlesex,
Cabinet Maker, do hereby declare the nature of this invention to be as follows:-
:-
This invention relates to an improved means of transmitting written messages,
small parcels &c. with great speed and certainty. For example, I employ a single
tube, preferably zinc, for smaller instruments, with funnel shaped ends, for admission
of force of air. At each end of the tube is a cabinet, enclosing an exhaust bellows,
actuated by pressure of the foot upon a lever. A written message, or small parcel
may be thus drawn from either end of the tube. Attention is called to the opposite end
of the tube, by a whistle, or any other sounding device, caused by the first pressure
of the foot on the pedal, or lever, by the transmitter, who has written the note he
desires to send. Upon the receiver intimating his attention, by the sounding device,
as above, the note is placed in the funnel, and instantly disappears by mere suction.
No carriers are employed within the tube. The exhaust bellows may be enclosed in
any manner most convenient to the user, in a special cabinet, in the partitioning of
an office, in the wall, in an office table, or otherwise, or by providing the ends of the
tube with a longth of flexible tube, the instrument may be removed from place to
place in the room.
The cabinets, in which the tubes terminate, are provided with lock up doors, and a
note put in at one end may be locked up and left there in the absence of the attendant
at the other end, who may, on his return, try if there is any message awaiting, by
pressing the pedal lever, should there be one, it will immediately make its appearance.
In case of very long distances, I employ, to obtain continued force of air, three
exhaust bellows, instead of one, worked by a three throw crank. For the purpose of
bringing messages from several points to one principal point, I employ a main tube,
with any number of tubes branching into it which necessity may determine.
Messages may be sent through one or the whole of these branch tubes simultaneously,
and return messages may be sent through any branch, by closing the remaining
branches, for which purpose I provide each branch with a stop valve. The tubes may
be of various dimensions according to the amount of work required of them, and
consist of any materials best suited to the position they may occupy. They may be
fixed in any position, turned or twisted in any conceivable shape, carried through
water, laid under ground, suspended in mid air, fixed vertically on walls to any
distance, the message passing as readily through vertical as horizontal tubes. By
this system, a ready means of temporary or permanent communication may be
established, with trifling expenditure of time and cost. Air pumps or exhaust fans
may be employed where required, and driven by any known motive power. The
current of air is reversible.
JOHN KELLY,
Pyrmont House, Green Lanes, Winchmore Hill, Middlesex, Cabinet Maker.
COMPLETE SPECIFICATION.
Improved Pneumatic Dispatch.
JOHN KELLY Pyrmont House, Green Lanes Winchmore Hill Middlesex Cabinet
Maker 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 an improved means of transmitting messages, small
parcels &c. with great speed and certainty and is carried out as follows.
I employ a series of jointed tubes A each extreme end being funnel shaped K, for

page_text: admission of greater volume of air. These funnel mouths open into a cabinet B, at
both ends of the tube. In the lower part of this cabinet, I fix an exbaust bellows C
which is actuated by the pedal lever D. By pressing this pedal, written messages
may be brought from either. end of the tube, without the use of any carrier within
the tube. By suction to obtain a continuous currant of air for long distances I
employ three exhaust bellows, worked by a three throw crank, which crank may be
rotated by hand or wound by a spring, or by any other motive power.. If desirable,
air pumps may be used instead of exhaust bellows. Branch tubes can he run in
various directions from the main tube, and messages carried from the various points
simultaneously. The division E is perforated to allow the current of air to pass
freely. The valve F is for a like purpose, and is fixed open, to admit air for a return
message, by means of a stop G. The bellows are extended upon the pressure of the
pedal D pulling the cord H which travels over the pulley J. The tubes are jointed
by simply slipping one in the other, not being fixed are therefore portable.
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. An improved pneumatic dispatch, without any carrier within the tubes,
constructed in the manner as hereinbefore described, set forth and refered to in the
accompanying drawings.
2. The combination in an improved pneumatic despatch as herein before described,
set forth, and refered to in the accompanying drawings.
JOHN KELLY.