1852, 
THE CULTIVATOR. 
157 
EMERY & COMPANY, 
Sole Manufacturers for the United States, 
OF THE 
New-York State Agricultural Society ? s 
FIRST PREMIUM 
RAILROAD HORSE POWER, 
Patented by H. L. EMERY, February 24, 1852. 
Manufactory, on Hamilton, Liberty and Union Streets ; Warehouse 
and Sale Rooms, Nos. 369 and 371 Broadway , 
ALBANY, N. Y. 
T HE above Horse Powers have been awarded the highest Pre¬ 
miums at the Fairs of the New-York State Agricultural Society 
in 1S50, and again in 1851; also, the highest Premium at the Michi¬ 
gan State Fair, at Detroit, Mich., in September, 1851, where a ma¬ 
jority of the Committee owned and were using Wheelers 5 Powers 
on their farms, having purchased them previous to seeing our own; 
also a Gold Medal at the American Institute in 1851. It was also ex¬ 
hibited at the State Fairs of Ohio, Maryland, and Pennsylvania, and 
received the highest awards which could be given by the rules of 
their Societies. In every case, it has been in competition with all 
endless chain Powers of any note in this country. 
Over SIX HUNDRED setts of the above Powers were sold and 
put in use from June to January last, not one being returned or failed. 
To enable the public to distingush the above Horse Power from all 
others, we here show its principal, and most important parts, by dia¬ 
grams and references—beside like diagrams and references of the 
Rack and Pinion Power, as made by ourselves, Wheelers, and oth¬ 
ers; and also the Rack and Pinion with epicycloydal teeth, which has 
long been successfully used in this vicinity, and which, with our re¬ 
cent improvements, in its adaptation and" application to our Horse 
Power machinery, places it the first oil the list of Rack and Pinion 
Powers. 
Fig. 4. Fig. 3. 
Top view of the Running Gear , and a portion of the frame work of 
H. L. EMERY'S Patent Changeable Railroad Horse Power. 
Fig. 1. A. A.—Main sills or timbers of the power supporting the shafts, 
B.—'Band pulley upon one of the shafts. 
D.—Pinion, or small gear, upon the same shaft with pulley. 
C.—Converge or internal gear upon the main shaft, and work¬ 
ing into and over the pinion. 
b. b.—Main and counter shafts of power. 
c. c.—-Reels upon the main shaft, which support the endless 
flooring in its circuit, and carry the shaft, 
a.a.a.a.—Couplings upon the ends of the shafts, fitting all the 
pullies and gears. 
Fig. 2. Shows a side and edge view, (enlarged.) of the couplings. 
Fig. 3. Side view of converge or internal gear and pinion. 
Fig. 4. Side view of one of the two reels, c.c., on the main shaft. 
B. —Side view of one of the 72, (or 36 on each side.) small truck or 
friction wheels, which traverse with the endless flooring—being 
about 3f inches diameter. 
C. —Side view of one of the 72, (or 36 on each side,)iinks or segments 
of the chain, each of which are six inches long, as seen con¬ 
nected with others, a.a.a.a.-—The eyes of the links and small 
rods crossing the power and extending through the links, and 
far enough outside to receive the small trucks. 
A.—-Side view of a section of one of the pinions or small cog wheels, 
two of which are placed upon the main shaft, and receive the 
motion and force from the cogs on the links of the chain. This 
pinion is about four and a half inches diameter, and the baud 
pulley is used upon the same shaft, which for threshing, is 
four feet diameter. The lower view represents the teeth or 
cogs, as seen with links inverted. 
Emery's Improved Patent Rack and Pinion Power, 
with Epicycloydal teeth. 
c— Shows a side view of one of the links or sections of the chain, 
of which there are but sixty, or thirty on a side, and are 
each seven inches long; every alternate link is cast with dow¬ 
els, a.a.a.a.a.a., projecting each side ; those on the inside con¬ 
necting with the other links, while those on the outside receive 
the truck wheels, thus avoiding the necessity of the small shafts, 
and expense of fining up. The eyes of the links and truck wheels 
are cast upon steel chills—making a perfect, and hard smooth 
surface, which will not wear or break—while the dowels are 
sufficiently large and strong to withstand more than the cogs 
themselves. 
The lower edge of each link is widened equal to the face of 
the pinion, and the cogs made to extend the whole width of the 
pinion, as shown in the lower cut, representing the link invert¬ 
ed, presenting double the strength and driving surface, as 
shown in the last kind; every alternate link is confined to the 
plank flooring by a small screw bolt passing through a flange up¬ 
on the inside of the link, and under the plank itself. 
A.—shows a section of the pinion, which is a little larger in diameter 
than the last—the teeth of which are epicycloydal in form— 
as are those on the links working into them—which is acknow- 
