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FOREST AND STREAM. 

[Dec. 21, 1907. 


practical demonstration of the efficiency of the 
Osol stoves, as they are called, was given on 
Thursday evening, when the demonstrators 
cooked a Welsh rarebit supper for half a dozen 
of the show officials, and it is on record that 
the rarebits had no resemblance whatever to 
rubber, and that the guests did not indulge in 
Welsh rarebit dreams. On the contrary, the 
culinary effort was pronounced highly success- 
ful. The Alcohol Utilities Company make 
stoves with one. two and three burners, broilers, 
toasters and chafing dishes, for use on these 
stoves, and also incandescent lamps which give 
a brilliant light, burning the alcohol vapor. 
The castings used for gasolene engine 
cylinders do not look to be particularly intricate 
from the outside. A visit to the exhibit of the 
Capitol Foundry Company, of Hartford, Conn., 
would, however, dispel any idea that the manu- 
facture of such castings is a simple matter. 
Castings were shown with sections cut away to 
show the intricate forms of waterjackets, valve 
chambers, and other parts that must be cast 
integral. All the castings shown are particu- 
larly clean and sound, and the wall thicknesses 
are remarkably uniform. ‘These are, of course, 
exceedingly important points in such castings. 
One of the interested visitors at the show was 
Mr. Charles G. Burgoyne, former commodore 
of the Halifax River Y. C., of Daytona, Fla., 
who was at the show for the purpose of selecting 
a motor boat. Mr. Burgoyne expressed himself 
as highly pleased with the show as a whole and 

with the exhibits in detail. Mr. Burgoyne is 
also a former president of the Florida East 
Coast Automobile Association. 

The remarkable perfection and accuracy of 
modern manufacturing methods was exemplified 
in a very interesting manner in the “B” Line 
Oil and Grease Guns exhibited by the Randall- 
Faichney Co., of Boston, Mass. These instru- 
ments, which are made throughout of brass, are 
entirely devoid of packing, the plungers being 
fitted with the utmost accuracy, by a grinding 
which insures an extremely close fit. 
hese guns will handle heavy grease, ordinary 
oil, very light oil, and even gasoline, success- 
fully. 
process 
The Pneumatic Manufacturing Co., of New 
York, makes a specialty of air cushions, cork 
cushions, cork fenders, life preservers, spray 
hoods, and similar articles. The Commodore 
Spray Hood is a particularly popular article, as 
it is easily erected, quickly adjusted, and folded 
when not in use into a small and compact 
bundle. The spray hood comes very near to 
making a cabin boat of the ordinary open 
launch. 
Special provision is made for the protection of 
the spark plug by the Rajah Auto Supply Co., of 
New York. A spark plug hood of porcelain is 
placed over the top of the plug to keep it dry 
under all conditions of weather, and the cable is 
slipped through a special opening in the side of 
the hood and connection is made with the cen- 
tral electrode of the plug by means of a clip 
terminal which is easily applied and holds posi- 
tively. The Rajah ignition plug embodies a 
number of particular features which make it 
particularly valuable for marine work, including 
an internal spark gap which is particularly 
efficient in keeping the plug at work under ad- 
verse conditions. 
No little interest was attracted by the exhibit 
of racing shells made by Thomas & Grant, of 
Ithaca, N. Y. This is the concern that manu- 
factures all the shells used by Cornell University 
men in their rowing events, and their shop is on 
the shores of Cayuga Lake. The main feature 
of the exhibit was the long slender 8-oared shell 
in which the Cornell crew won the inter-col- 
legiate championship last Summer in such re- 
markable time. The workmanship on the 
Thomas & Grant shell is of the most exquisite 
character, and has attracted much attention. 

The use of magnetos as a source of ignition 


current is constantly increasing, indicating that 
the boating public appreciates the advantages 
to be derived from an ignition system in which 
no batteries of any kind are used, and which 
derives its power from the motor of the boat. 
Robert Bosh, New York, Inc., had an extremely 
fine exhibit of magnetos of all marine types, for 
both high tension and low tension ignition sys- 
tem. The manner in which these magnetos 
are shawn is particularly interesting. One ma- 
chine of each type is mounted on an individual 
stand and wired up to a set of spark plugs. A 
hand wheel and crank serve to drive the arma- 
ture of the magneto and so generate the current 
to cause sparking at the plugs. In this way the 
prospective purchaser can see for himself just 
how the machine works in actual practice. He 
can turn the crank as rapidly or as slowly as he 
pleases, and note the intensity of the spark at 
different speeds. Several types and sizes are 
shown in both the jump spark and make and 
break ignition system, so that a wide variety is 
presented for choice. 
The spark plug is one of the most vital por- 
tions of the jump spark ignition system, for it 
is the point where all the energies of the 
ignition apparatus are concentrated. For this 
reason the spark plug should be particularly 
adapted to the work it is called upon to do. A 
series of plugs especially designed for marine 
work, and having mica or porcelain insulation, 
according to the preference of the purchaser, was 
shown by the R. E. Hardy Co., of New York, 
under the name of the Sta-Rite plugs. The Sta- 
Rite plugs are made in both metric thread and 
A. L. A. M. standards, and in special types for 
special motors. 
A question frequently heard at the show was. 
how can varnish resist the action of weather and 
salt water? This may be puzzling to the user 
of ordinary varnish, but the F. W. Devoe Com- 
pany, of New York, which makes a specialty of 
varnish for marine work, explains that it is all 
in knowing how to make the varnish. The De- 
voe varnishes are well known among yachtsmen 
and yacht builders. A special varnish for spar 
and deck finish is known as Vernosite. The 
manufacturers state that it will not turn white 
under the action of salt water and will not 
blister in the hottest sun. 
What the speed indicator is to the automobile 
the Nicholson ship log, manufactured by the 
Nicholson Shin Log Co., of Cleveland, O.. is 
to the motor boat. This device is installed in 
the motor boat with a dial in any convenient 
position on a bulk head, and indicates continu- 
ously the rate of speed in miles per hour. It 
can be used for motor boats. steam yachts, and 
sailing yachts, with equal facility, and it can be 
mlaced in the cockpit or in the cabin. The in- 
dicator is made to operate by the pressure of the 
water, caused by the forward motion of the boat 
acting on a float in a float chamber, to which 
the water is carried through a small pipe. An 
eanalizer is provided to keen the instrument in 
justment when there is a change in the water- 
line of the boat. and to prevent fluctuation 
when the boat is pitching in a seaway. Indi- 
cators are furnished to read either in knots or 
in miles per hour. 

= 
What is, perhaps, the most radical change 
made in spark plug construction was shown in 
the Holston vibrating plug, made bv the 
Triumph Engineering Company. of New York. 
In this plug the central insulation carrying the 
central electrical is not stationary in the shell 
but vibrates vertically, being forced upward on 
compression and expansion and pulled down- 
ward on the suction stroke. The point of the 
central electrode approaches within an ex- 
tremely small fraction of an inch of the shell 
electrode at each vibration, but does not quite 
touch. The constant movement breaks all de- 
nosits of carbon and keeps the plug perfectly 
clean and free from soot. Practical tests of 
long duration under severe conditions indicate 
the correctness of the principle upon which the 
plug is built. It seems practically impossible to 
cause a short circuit or to prevent the proper 


operation of the plug without actually disabling 
it through breakage. 
The New York and New Jersey Lubricant 
Company, of New York, makes a specialty of 
oils which are not fluid, but which nevertheless 
have all the lubricating quality of fluid oils, 
without their disadvantages. This oil will not 
drip or splash and is made in various consisten- 
cies for any class of work. This is a point that 
is appreciated in motor boat work, where the 
oil is apt to be thrown by the engine if it is 
in a liquid condition. 

The seaworthiness and roominess of the dory 
type of small boat has made it very popular as a 
motor craft. The two makers were showing 
dories at the Grand Central Palace. The At- 
lantic Company, of Amesbury, Mass, and the 
Toppan Boat Manufacturing Company, of Bos- 
ton, Mass. Both these exhibits were usually 
crowded with motor boat enthusiasts looking 
out for next season’s boat. One of the strong 
points of the dory is that a fair rate of speed 
can be obtained with an engine that looks 
ridiculously small compared with the roominess 
of the boat. This is, of course, a matter of 
much importance. 
Among the sales reported Whittlesey & 
Whitaker, Inc., closed a contract with Mr. 
Frank D, Gheen for a 38ft. specially ‘designed 
cruiser which it is intended to enter in the 
Marblehead long distance race. This boat will 
be equipped with a 24-horsepower slow speed 
“Buffalo” motor and the hull will be con- 
structed by the Stamford Motor Works, Stam- 
ford, Conn. 
Whittelsey & Whittaker, Inc., also report 
having closed a contract with the Matthews 
Boat Co. for the construction of a 4sft., high 
speed cruiser, from their design, for Mr. C. A. 
Criqui, of Buffalo, which will be equipped with 
a 40-horsepower sterling normal speed motor. 

Challenge for the Motor Boat Cup. 
TuHat European countries do not intend to let 
Americans carry off the palm in power boating 
is indicated by a rumored challenge likely to be 
received very soon from Lord Montague, of 
Beaulieu and Lionel de Rothschild for the 
British international motor boat cup, which was 
won last summer by Dixie and which is now 
held by the Motor Boat Club of America. The 
Motor Boat Club of America some time ago re- 
ceived notification that a challenge would be sent 
by the British Motor Boat Club, and now other 
countries can enter and race under the condi- 
tions arranged by the first challengers and the 
challenged. The entries for this race close on 
Feb. 1, and each country entering can be repre- 
sented by three boats. If there are more entries 
for any one country, eliminating trials must be 
held to select the three representatives. It is 
very probable that eliminating trials will be held 
here to select the defenders of the trophy. The 
boats must not exceed 4oft. over all length and 
there is no limit to the power of the motor. The 
races are held without time allowance. 
Just where the races will be held has not yet 
been decided. It has been suggested that the 
traffic on the Hudson River, which is the regular 
course of the Motor Boat Club, is so large that 
it would not be fair to have such an important 
event as an international race decided over that 
course, and some other course, perhaps on the 
Sound, be selected. 
Yachtsmen at a “Beefsteak.” 
THE members of the Jamaica Bay Y. C. held 
their first beefsteak dinner of this season at 
their club house at Holland Station, Rockaway 
Beach, recently. Commodore Pentz of the club 
was in the chair, and the 150 members present 
were entertained by speeches and vaudeville per- 
formances. Among those who attended were 
William Wood, B. F. Daly, ex-Commodore of 
the club; James Sabin, Commodore of the Belle 
Harbor Y. C.; James White, Henry Chaurant, 
J. E. Lent and Harry Taft. 





