An Improved Motor or Engine.
Year: 1895

page_text: PROVISIONAL SPECIFICATION.
An Improved Motor or Engine.
GEORGE VIGGARS 1 North Street Newcastle, Staffs, Wholesale Beer-dealer and
Commission Agent, do hereby declare the nature of this invention to be as follows:-
The invention consists in-say-cutting off a section of the present form of
cylinder containing the piston head and enclosing same with both ends of cylinder,
and taking a section out of said piston head, thereby making room for steam or other
motive power, and by admitting said steam etc. through a valve-cause the piston
head to circulate part round said section of cylinder, imparting circular motion
to the shaft or piston rod, which is extended through each end of section and
'connected with crank rod by a lever fastened on external end of piston rod.
The circumsectional motor or engine is equally well adapted for driving by steam,
gas, oil, or compressed air and the like or by a combination of either of them.
Dated this Eleventh day of December 1895.
1, GEORGE VIGGARS, of 1, North Street, Newcastle on Lyme, Staffordshire,
Wholesale Beer Dealer and Commission 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 :-
This invention relates to an improved motor or engine, which is hereinafter
particularly described with reference to the accompanying drawings; on which,
Figs. 1 and 2, represent sectional elevations on A-B, Fig. 3, and partly through
the motive power inlets of the valve gear, showing the parts respectively at the
commencement and at the end of a stroke ;
Figs. 3 and 4, are sectional plans respectively on C-D, and E-F, Fig. 1; and
Figs. 5, and 6, are sectional elevations of the valve gear, showing the valves open
for a stroke and reversed for the return stroke.
In accordance with the invention, I mount a first-motion_shaft I, concentrically
in relation to a surrounding stationary cylinder or casing J, and cause the shaft
to receive a sectorally reciprocating motion, in a plane at right angles to its axis,
by the agency of steam, air, water, gas, oil or other fluid or liquid under pressure
(hereinafter referred to as the "motive agent") admitted to the cylinder, and reversed
by the operation of the shaft. .
To this end, the cylinder is formed or fitted with a radial diaphragm j', or with
two or more thereof, dividing the cylinder-space across, or at equidistant intervals
into pressure-spaces, the opposite sides j2, j3, of each diaphragm or diaphragms
serving as fixed resistances to the motive agent. On the shaft I, within each such
pressure-space (two being shown on the drawings) is keyed or otherwise made fast
to the shaft or integral therewith, a piston head i, the ends of which work in
steam-tight contact with the cylinder ends (vide Figs. 3 and 4) and the periphery

page_text: of which works in steam-tight contact with the inner periphery of the cylinder,
nide Figs. 1 and 2, suitable packing being interposed between the piston head and
the parts against which it works, if required.
Within each diaphragm, is arranged a reversible valve K, formed with pressure
and exhaust openings 1, 2, the former being in communication with the supply L,
of the motive agent, vide Fig. 3, and the latter being open to the atmosphere or
leading to any suitable exhaust silencer, and both being adapted to open into the
cylinder pressure-space. through ports j8, 9, in the diaphragm j, each alternately
on the opposite sides of the diaphragm.
The shaft I, extends through stuffing boxes at j4, j 5, in the cylinder ends j 6, j7,
its end 2, being connected to the machinery required to be driven by means
appropriate to convert the sectoral reciprocating motion thereof into the motion
required to be conveyed thereto, and its end 3, being fitted with a cam i 4, which
is adapted to shift the valve or valves K, at or towards the end of each stroke, by
operating on a cam i 6, fast on each valve-spindle, which passes through stuffing-
boxes j 10, and the cylinder ends, and communicates with the pressure-supply L
through a packed connection l'.
Thus, on the motive-agent being admitted by the valves K, to the cylinder,
between the diaphragm I, and the adjacent sides of the piston heads, it sectorally
rotates the shaft until the cam i4, reverses the valves, when the pressure side is
immediately opened to the exhaust, and the motive-agent is admitted to the other side
of the diaphragm and reverses the motion, and so on.
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 :
An improved engine or motor consisting of a stationary cylindrical casing formed
or fitted with a diaphragm or diaphragmns dividing the cylinder-space across into a
pressure-space or spaces, and with a shaft passing through its axis and fitted in
each pressure space with a steam-tight piston fitting the inner ends and the inner
periphery of the cylinder, and with a reversible valve or valves formed with pressure
or exhaust openings; the shaft extending through the cylinder ends, and being
adapted, at or toward the end of each stroke, to reverse the admission of the motive
agent and to open the exhaust, whereby the shaft is caused to be sectorally reciprocated,
.as set forth.
Dated this 8th day of September 1896.
DAY, DAVIES & HUNT,
Chartered Patent Agents,
321, High Holborn, London, W.C., Agents for the Applicant.
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