Scientific American, Volume 56, No. 9, February 26, 1887Various
Science
Scientific American, Volume 56, No. 9, February 26, 1887
Various
Science -- Periodicals; Technology -- Periodicals
SMALL STEAM YACHTS AND STEAM LAUNCHES.
--Our boats are not experimental, but are powerful, fast and economical
of fuel. Burn either coal or wood. Do not require experienced engineer.
No complete boats under $500.00 in price. Illustrated Catalogue,
including engines and boilers, and propeller wheels and six photographs
of launches, sent on receipt of six two cent stamps. CHAS. P. WILLARD &
CO., 282 Michigan St., Chicago.
WANTED
--Agents to sell =PRATT'S PATENT BUTTON FASTENER.= Address PRATT
MANUFACTURING CO., Boston, Mass.
[Illustration]
THE BEST STEAM PUMP.
Van Duzen's Patent Steam Pump.
Incomparable in cheapness and efficiency. Needs no care or skill;
cannot get out of order; has no moving parts.
A Superior Fire Pump.
Instantaneous and powerful, ever ready. Available, wherever steam
pressure can be had, for pumping any kind of liquid (hot, cold, sandy,
impure, etc.). We make ten sizes, prices from $7 to $75. Capacities
from 100 to 20,000 gallons per hour. State for what purpose wanted and
send for Catalogue of "Pumps." =Van Duzen & Tift, Cincinnati, O.=
[Illustration]
Ainsworth's Patent Improved BELT CLAMP.
This clamp is light and strong; a pair will last a life time; are made
of the best cast steel. No tool or wrench is needed, as it is complete
in itself. Can be used on any size belt, from one inch to size of
clamp. =E. Ainsworth, Mfr,= 829 Washington St., Wilmington, Del.
LEGS & ARMS,
(ARTIFICIAL)
WITH RUBBER HANDS AND FEET.
The Most Natural, Comfortable & Durable,
Thousands in Daily Use.
New Patents & Important Improvements.
U. S. Gov't Manufacturer.
Ill. Pamphlet of 160 Pages SENT FREE.
=A. A. MARKS, 701 Broadway, New York City.=
STEAM ENGINES.
Horizontal and Vertical.
Dredging Machinery, Flour, Powder, Slate and Flint Mill Machinery,
Turbine Water Wheels.
York Mfg Co., York, Pa. U. S. A.
SCIENTIFIC BOOKS
We send our catalogue of books, free of postage, to any address.
=MUNN & CO., 361 Broadway, New York.=
[Illustration]
HARRISON CONVEYOR!
=For Handling Grain, Coal, Sand, Clay, Tan Bark, Cinders, Ores, Seeds,
&c.= Send for Circulars. =BORDEN, SELLECK & CO., {Sole Manu'f'ers,}
Chicago, Ill.=
HOISTING ENGINES
and Boilers for every possible duty. =New catalogue
ready. LIDGERWOOD MANUFACTURING CO., 96 LIBERTY STREET, NEW YORK.=
[Illustration]
The Caligraph.
LIFE IS TOO SHORT TO WRITE THE OLD WAY
_Address: The American Writing
Machine Co., Hartford, Conn.;
New York
Office, 237 Broadway._
Patents in Brazil and Mexico.
Until quite recently, considerable difficulty has been experienced
by inventors in obtaining patents in both Brazil and Mexico. The
requirements of the officials of these countries caused much bother and
delay, and the expenses of a patent corresponded therewith.
Public-domain text, read in full here on John Shaqi.
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