The New York herald. [volume] (New York [N.Y.]) 1840-1920, 1867-08-25
ANEW sYs1tm OF srfAm paopulsIox.

There 10 now lying In the harbor, al pier No. East
nvsr, the Battery, peculiarly constructed canal
boat whose Of propulsion through the water
decidedly novel, and for which the Inventor Mr. H. Boyn
ton, claims certain special advantages the ordinary
psddlewheel and the screw propeller The great point
Of the "raiwsy propeller" the machine 10 called,
consists In lie direct working action both 10 the water
and on Of the rectineal Transmission OF the
motive power. For instance, In an ordinary paddle
wheel steam engine, the force OF the driver the pro-
polling power has to be changed, nrst, from direct up
and down motion into aciroulsr one In order to work
the paddles and then these paddles work again In the
water with o rscineal motion; % that by this double
change Of movement large amount Of force 10 usssssy
expended. The railway propeller, on the contrary,
-. p,on Of The steam cnsns that drives IL ana gains
so much additional power In so doing, as
no force 10 wasted This mode Of working and
construction Is hard 70 be explained without the aid OF
dagrams but IL may be said TO approach more nearly
70 the prncpe OF the that Is being pulled through
the water by man In boat than any other method Of
marine propulsion hitherto devised The chief merit
that has the paddlswheel Is the additional hold
or pull has on the water thus. for towing heavy
with long strings OF canal boats connected together
vessel win be proved Of the ability although not
rapid Si' iocomoon Is desired The whole Plan may Be-
explained BY the reader sapposng paddlewheei 70 be
resembles straight ladder with projecting steps This
10 back through the water on each side Of the
boat like series OF heavy oars working together AZ
the end Of the stroke this truck, a. the inventor
calls H. or car which travels along two lines Of rails
Qiks those OF ordinary steam earl that terminate
In an elipss al either end, 10 lifted out Of the water
on 10 the upper rail- IL drawn back 10 its rst position
10 lowered again into the water, swept back and on,
working coninuously in this manner Then there being
two Of these elongated paddss each side, the action
Of The boat through the water never sHcksns for whom
one IL immersed the other s travelling back 70 the
po(wf d'appui There IL likewise avoidance OF the
1dssd points which ensinssrs knew to BE- the week,
ueso Of paddle and scrswengines alike for the forward
stroke d The piston takes the trucks right up 70 the
turn Of The Elliptic curve on 70 the back truck and the
fsverss motion brings again 10 the nrst point Of action
There no doubt that thsss trucks or collective sweey
have an enormous hold water similar 70 that which
| traction engine has on land =
The railway propeller has been built like an ordinary
canal boat only her sides are open; and she has
watsrght comparwent running fore and a her entire
lsnsth She 10 Do feet In length hes feet beam, I'm
r., over guards drawing 81 feet Of water Hsr engine
Z CIRCULATING Of inches diameter and W feet stfone
"a connection with this boat and ~ adaptation 70 the
navieaaien Of the Erie canal, . meeting was heid ~
csntiy 81 the Produce Krchange. Mr. Thomas Alvord
member Of che Constitutional Convention COMMITTEES on
Ganais from Albany occupied the chair and expressed
/ himself much pleased with the invention after ~
/ Doynton had explained ~ working