Richmond enquirer. [volume] (Richmond, Va.) 1815-1867, 1829-01-01

merits. The was laden with TEN so H. ,ve,uhts
and in addition TO this load two gentlemen weigh
ing nj least $50 lbs. each, placed themselves ,non
il; when the tcho's drdtrn along Nth nertecf
facility, 6y a hay-pon,sd toeight attached to a
slender thread, running over pulley. This ex-
pertinent, incredible as 1t may seem, was repeated
several hundred times in the course OF the day, TO
the astoulshmcDt and admiration Of all who bc!,eli
It, The entire weight drawn in hi, manner was
equal TO about half ton. which is in the ratio Of
one pound power 10 one ton of load. Among III,
Visiteis yesterday who saw and rode upon the car,
was the venerable Carroll Of Carro,.ton.
We understand that the Board OF Directors OF
the Baltimore AMI Ohio Railroad Company are
about to test the invention in practical way OH
large scale. Should the result be, what there
is the strongest ground for believing that il will
1t must forever put 10 rest all idea Of competition
between canals 'nl rail roads. Some notice of
this astonishing invention-for such il NAV truly
be called, was taken in the american of Monday
last, and we observe that paragraph i. Copied
mo TIC Philadelphia Aurora, preceded with the
/ following remark -
Something further OF The plan and construction Of.
car a!forling the izng advantage represented
and would give US pleasure TO he able TO en-
tighten our readers upon the subject. Forty tons
(, is large load for horse, and any road or car
which allows him TO exert that power, will be an
invention surprising that OF the steam engine"
! For the satisfaction Of our Philadelphia friends,
we sutJoin description of this invention, copied
from pamphlet lately published by ]. l.. Sul-
van, Esq. civil engineer. The description il is
believed. will he readily comprehented by the
! practical or scientific reader:-
Tins invento appears 10 me 10 be what was n :
lore wanting to give the railroad decdet. pre-
terence over canals, except in situations where,
; IKE 'he Kaiian ami Delaware, extensive branches
, OF natural navigation may be connected
! " The reason Of this important consequence nj
this improvement is that the useful effect of the
power employed is, without loss of time, increas-
ed iour or five fold That horse, instead o!
drawing ten tons, he does o., The hest
in England will draw fifty tons This ha. been
demonstrated TO many scientific men, and no fac,
IN me art oil railways can be better attested The
invention, was filed at the patent office severa,
years ago. the patent Is OF recent date, and this
improvement vii! be at the service OF any corpo-
rate company DESTROYS OF il. All such are invited
10 investigate the facts for themselves and if the
result be satisfactory, l can, as the agent of Mr..
mans, olier them liberal terms, whatever the
form OF railroad preferred. /.
Inc principle OF this improvement is found ed in
the elect oil compound leverage, producing slow
movement at the beating axle tho the carrage
| proceeds with speed. This mach demonstrates
! that slow motion between rubbing surfaces dimin
isiies friction, in the ratio of that slowness The
OBJECT, then, OF the Improvement is TO cause the
aAies which bear the load, between which and the
superintendent eight, there must of course be
FuOoihg'to move or revolve very much slower than
me axies OF the wheels which travel on the rail
Wy vi course, IilS cannot lie done with the
as' mentioned aXles alone but is done by the ayJes
oil wheels which are made TO move nv res,inm M,
me revolving aXles OF the travelling wheels 1t
may be compared 10 one wagon upon another. the
wheels oil the upper one standing on rounded pIa-
ces Oh the axies of The lower one The unper
wheels VIII move very slow, because they travel
only the circumference of the axle OH which ,bev
slahu, anu their aXics much slower as thew are
ess IN diameter, so that if the size of the upper
wheels be bali that of the lower ones il NAV .asi-
y be, that the relative motion of tn. upper axle to
mat oil the periphery Of the lower wheel NAV b.,
AZ to or 500
bu'' IN practice altho this is the effect proGuc ell
me secondary wheels so placed, that the ends
Oh The main axles may roll on the inside of the rim
OF me secondary wheels, and the carriage be no
more elevated than usual, because the load bodv
Is mus hung on the ends of the main axies and
the same ELECTS produced.
Upon level, smooth, hard wav The resistance
TO be overcome is mainly at the bearing axIes II
the resistance is alone the friction (Which is near
ly the fact,D this will be lessened in proportion 10
siowness OF rubbing; then the horse NAV be con-
sdered, independently Of his travelling onwards
as power exerted upon the lever, which the
spokes OF the main wheels mus; be considered 80
being, 30 turn the axle; which being thus the me-
dunn oil his power augmented in proportion 10 the
comparative length of leverage, now in turn acts
npon the emf OF the long lever of the secondary
wheel, which Is the medium OF siowness TO lis
own, the bearing drtc
The friction OF the bearing weight or load. ia A.
naiogous 10 weigh. TO be slowly raised by the
power OF the horse, thrO' the medium of compound
Leverage similar in effect 10 whe els and pnons.
The moving power is thus the relieving powe,."
l.EEeIicdg.
From the .h0rf,Ik, Hermit /