Improvements in Aerial Machines.
Year: 1889

page_text: Date of Application, 25th Feb., 1889
Complete Specification Left. 9th May, 1889-Accepted, 22nd June, 1889
PROVISIONAL SPECIFICATION.
Improvements in Aerial Machines.
I, JOHN CRAIG of Birdenshot, near Guildford, in the county of Surrey, Gentleman,
do hereby declare the nature of this invention to be as follows:-
My invention consists of a frame of wood, metal or other material to which I attach
one or more propellers, which work in different directions, but both drawing upwards.
I use a vaporizer preferably naptha acting on turbines, which in their turn act on
the propellers. A parachute attached to the frame is so arranged as to shelter the
passengers from the draught caused by the action of the propellers—the steering is
effected by means of a rudder of any required shape.
Dated this 25th day of February 1889.
COMPLETE SPECIFICATION.
Improvements in Aerial Machines.
JOHN CRAIG Birdenshott, near Guilford County of Surrey, 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 :-
My Invention consists of a framework of wood, metal or other materials, on which
is mounted one or more propellers on vertical shafts which said shafts rotate in
different directions, both propellers causing the machine to rise at a slow or fast
speed, regulated by a tap or cock, through which vaporised naptha flows against the
vanes or feathers of turbines fixed at the lower end of the vertical shafts at the top of
which the propellers are fixed.
In order that my Invention may be more readily understood and explained in detail,
I have hereunto annexed a sheet of Drawings on which letters of reference are
marked.
DESCRIPTION OF DRAWING.
Fig. 1 is a side elevation of my improved Aerial Machine.
This Fig. shows a machine constructed of steel tubing a open a both ends, and
covered with light but strong cloth, at the underside of which is a car b covered with
wicker work, and having seats arranged therein, from which the helm or rudder c
consisting of a frame covered with cloth is worked by means of ropes or chains.
When starting the machine, the lamp d is first lighted the flame of which plays upon a
series of tubes e which convert the naptha contained in the vessel f into vapour, the
said vapour is then allowed to pass through tubes g to the turbines contained in the
casings thus rotating the vertical shafts i on which the propellers j constructed of
sheet steel are fixed at the upper ends, the flow of vaporised naptha from the vessel f
to the turbines in the casings h being regulated by means of cocks or taps in the
tubes g. Thus it will be seen that when the turbines are caused to revolve the
propellers also rotate but in opposite directions and cause the machine to ascend
according to the speed at which the turbines are driven, only one turbine and one
propeller may be used in small machines, or as many turbines and propellers as may be
found most convenient according to the size of the machine, in some cases an electro
motor may be used to drive the propellers instead of the turbines. The framework of
steel tubing hereinbefore mentioned I prefer to construct somewhat in the form of
the principal of a roof, open at both ends, thus ▲.

page_text: Having now particularly described and ascertained the nature of my said
Invention and in what mauner the same is to be performed, I declare that what
I claim is ;-
The principle of constructing an aerial machine with one or more propellers
mounted on vertical shafts, driven by a turbine or turbines acted on by vaporised
naptha, together with a rudder or helm for steering the said machine, in the manner
as herein substantially described, set forth and fully illustrated in the Drawings
annexed.
1 1
1
1000
GRAHAM & GRAHAM,
Agents for Applicant.