Scientific American, Vol. XXXVII.—No. 2. [New Series.], July 14, 1877 / A Weekly Journal of Practical Information, Art, Science, Mechanics, Chemistry, and Manufactures
(Illustrated articles are marked with an asterisk.)
The new air compressor herewith illustrated may be operated by steam or water power, and is available for work in mines, tunnels, or quarries, for driving rock drills, coal cutters, and hauling and pumping engines, working mining pumps, for use in factories, and in fact for all service where a safe and efficient power is required. The construction of the machine, the capacity of which differs according to the amount of power required, will readily be understood from the illustration. Above the air cylinder are two distinct air chambers, each having two induction or receiving valves, which cushion on rubbers. With the movement of the piston these chambers alternately receive and force the compressed air through check valves placed in the upper part of the air compartment, both compartments being connected with one pipe conveying the air to the ordinary air receiver. These check valves lift alternately, and cushion on water; and as the compressed air is forced into the pipe connecting with the receiver, without a possibility of any of it escaping back into the receiving chambers, it is claimed that there is the smallest possible loss of power, and that the machine will give fully 90 per cent of steam power expended in the shape of compressed air. The compressor is compact in form, strongly made, simple in construction, and not liable to get out of order. One peculiarity in its construction is that no water jacket or hollow piston is used; yet under any of the extreme pressures to which the machine has been tested, no inconvenience, we are informed, from heat has been perceptible.
BOWER'S AIR COMPRESSOR.
In connection with the compressor, receivers of various sizes are used, into which the air is pumped and thence conveyed by pipe to the location where required, even if it be a mile or more, the loss by friction between receiver and point of utilization of the air being, it is claimed, under 2 lbs. of the pressure.
Various
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SCIENTIFIC AMERICAN
Contents:
BOWER'S PATENT AIR COMPRESSOR.
Death of Professor Santini.
John Yule.
Business Prospects.
To Disinfect Rooms.
ESTABLISHED 1845.
PUBLISHED WEEKLY AT
NO. 37 PARK ROW (PARK BUILDING), NEW YORK.
TERMS FOR THE SCIENTIFIC AMERICAN.
The Scientific American Supplement
Publishers' Notice to Mail Subscribers.
NEW YORK, SATURDAY, JULY 14, 1877.
TABLE OF CONTENTS OF
THE SCIENTIFIC AMERICAN SUPPLEMENT,
No. 80,
For the Week ending July 14, 1877.
CARRYING PEACE INTO AFRICA.
ADDRESS OF CLARENCE KING ON CATASTROPHISM.
DUPLEX EDUCATION.
THE CARRIGEEN CROP.
CATASTROPHISM IN GEOLOGY.
A NEW APPARATUS FOR STORING AND UTILIZING SOLAR HEAT.
Phosphorescent Sweating.
UTILIZATION OF TIN SCRAP.
New Alloy.
Sebastin—An Improved Explosive.
A NEW METHOD OF BOOKBINDING.
IMPROVED CURTAIN FIXTURE.
BOOT AND SHOE MACHINERY.
On Dyspepsia.
The Destructive Effects of Lightning.
The Sea Serpent Sighted from a Royal Yacht.
Sunstroke.
Dead Horses Standing Erect.
SETTING LOCOMOTIVE SLIDE VALVES.
New Steamer.
A Tin-Can Telephone.
COLLENDER'S IMPROVED BILLIARD TABLE.
Coating Engraved Copper Plates with Steel.
Test for Sulphur in Organic Compounds.
IMPROVED BILLIARD BALL HOLDER.
THE MONITOR CHALK CUP.
CURIOUS CARNIVOROUS PLANTS.
Popular Fallacies.
The Extension of the Plague.
Education in Germany.
Bleaching Silk and Wool.
An Alloy of Tin and Phosphorus.
American Institute Exhibition.
American Inventions for New South Wales.
Man's Place in Nature.
Special Notice.
DECISIONS OF THE COURTS.
United States Circuit Court.—District of New Jersey.
NEW BOOKS AND PUBLICATIONS.
Inventions Patented in England by Americans.
Notice to Patentees.
NEW AGRICULTURAL INVENTIONS.
IMPROVED HAY ELEVATOR.
IMPROVED CORN HARVESTER.
IMPROVED SULKY HARROW.
IMPROVED HARROW.
IMPROVED COMBINED COTTON SCRAPER AND CULTIVATOR.
IMPROVED CULTIVATOR.
IMPROVED CHICKEN COOP.
NEW TEXTILE INVENTIONS.
IMPROVED FULLING MILL.
IMPROVED SHUTTLE-DRIVING MECHANISM FOR NARROW-WARE LOOMS.
IMPROVED LOOM TEMPLE.
NEW WOODWORKING AND HOUSE AND CARRIAGE BUILDING INVENTIONS.
IMPROVED THILL COUPLING.
IMPROVED VEHICLE SPRING.
IMPROVED TIRE HEATER.
IMPROVED CHIMNEY COWL.
IMPROVED WAGON AXLE.
IMPROVED WAGON BRAKE LEVER.
NEW HOUSEHOLD INVENTIONS.
IMPROVED BAKER.
IMPROVED FIRE KINDLER.
IMPROVED MATCH SAFE.
IMPROVED NURSERY CHAIR.
IMPROVED FRUIT JAR.
IMPROVED VENTILATOR.
IMPROVED BAKING PAN.
IMPROVED STOVEPIPE SHELF.
NEW MECHANICAL AND ENGINEERING INVENTIONS.
IMPROVED WATER WHEEL.
IMPROVED VALVE MOTION FOR STEAM ENGINES.
IMPROVED REVERSIBLE ECCENTRIC.
IMPROVED EXPANDING REAMER.
NEW MISCELLANEOUS INVENTIONS.
IMPROVED TORTOISE-SHELL HANDLE.
IMPROVED HAND STAMP.
IMPROVED BUCKLE.
IMPROVED LIQUID DIFFUSER.
IMPROVED OIL CAN.
IMPROVED HARNESS TUGS.
IMPROVED COMPOSITION FOR CASTING ORNAMENTAL FIGURES.
IMPROVED PEN RACK.
IMPROVED STOPPER FOR MUCILAGE BOTTLE.
HINTS TO CORRESPONDENTS.
INDEX OF INVENTIONS
June 5, 1877,
DESIGNS PATENTED.
ELECTROTYPES AND STEREOTYPES
REFERENCES.
COPY.
TIME.
CHANGE OF SIZE.
PROOFS.
PRICES.
TERMS.