IMPROVEMENTS IN GAS AND OTHER EXPLOSIVE MOTIVE-POWER ENGINES
Year: 1876

page_text: LETTERS PATENT to Charles Thomas Evans Lascelles, of 291, New Cross
Road, in the County of Kent, for the Invention of "IMPROVEMENTS IN GAS
AND OTHER EXPLOSIVE MOTIVE-POWER ENGINES."
Sealed the 7th November 1876, and dated the 10th May 1876.
PROVISIONAL SPECIFICATION left by the said Charles Thomas Evans
Lascelles at the Office of the Commissioners of Patents on the 10th May
1876.
CHARLES THOMAS EVANS LASCELLES, of 291, New Cross Road, in the County
of Kent. "IMPROVEMENTS IN GAS AND OTHER EXPLOSIVE MOTIVE-POWER ENGINES."
This Invention relates to improvements in gas and other explosive motive-power
engines, and consists in fitting to the crank or to a supplementary shaft a wheel
containing a spring, which has one end attached to the wheel and the other to the
shaft, directly or indirectly, or to a wheel fitted with stops, so that the action of the
wheel from the sudden travel of the piston rod under the explosive force of the
agency employed is taken partly up by the spring and partly by the shaft in its
rotation, the spring after the travel of the piston has gone its full stroke then
acting upon the shaft to maintain a regular rotation of the fly wheel, and con-
sequently a more regular action of the power and the mechanism which has to be
moved by it. The spring may however be connected with the fly wheel.
In lieu of the spring air may be compressed and be utilized for the same purpose.
SPECIFICATION in pursuance of the conditions of the Letters Patent filed by the
said Charles Thomas Evans Lascelles in the Great Seal Patent Office on the
10th November 1876.
"
CHARLES THOMAS EVANS LASCELLES, of 291, New Cross Road, in the County of
Kent. 'IMPROVEMENTS IN GAS AND OTHER EXPLOSIVE MOTIVE-POWER ENGINES."
This Invention relates to improvements in gas and other explosive motive-power
engines, and consists in fitting to the crank or to a supplementary shaft a wheel
containing a spring or springs which has or have one end attached to the wheel
Spain D71

page_text: and the other to the shaft, directly or indirectly, or to a wheel fitted with stops, so
that the action of the wheel from the sudden travel of the piston rod under the
explosive force of the agency employed is taken partly up by the spring and partly
by the shaft in its rotation, the spring or springs then acting upon the shaft or the
wheel to maintain a regular rotation of the fly wheel and consequently a more
regular action of the power and the mechanism which has to be moved by it. The
spring may however be connected with the fly wheel.
In lieu of the spring air may be compressed and be utilized for the same purpose.
In practice I purpose fitting the fly wheel loosely upon the main shaft of the
engine, and to effect its rotation by flat or plate springs (superposed plates) which
have the outer ends attached near the periphery, the inner ends of the springs being
fixed to arms on a boss or nave keyed upon the shaft, or it may be a wheel thereon,
that the percussive thrust of the piston is taken up by the springs in which the
power becomes so to speak stored to be utilized while the piston is completing its
stroke in the cylinder. I fit stops, preferably spheres, in grooved and inclined
pockets of a disc to bite the inner periphery of a fixed casing to prevent any back
running of the shaft when the springs receive the shock of the explosion, the disc
being keyed upon the shaft and the casing on the framing for the purpose.
Having now described the nature of my said Invention, and in what manner the
samo is to be performed, I declare that I claim, fitting or arranging springs or
equivalent appliances to gas and other explosive motive engines between the main
shaft and the fly or driving wheel for absorbing the sudden force of the percussion
and utilizing such force in promoting uniformity of action or work from the engine,
as set forth.
In witness whereof, 1, the said Charles Thomas Evans Lascelles, have hereunto
set my hand and seal, this Ninth day of November, One thousand eight
hundred and seventy-six.
CHARLES T. E. LASCELLES. (L.S.)