The sun. [volume] (New York [N.Y.]) 1833-1916, 1897-02-21
TO PREVENT JAR In A BOAT.
NEW MACHINERY TO TRANSMIr
POWER 10 THE WHEEL.
II Mr.. vss wyck's Invention Does All Re
Hopes Grenter speed Also L. Possible
y Yacht Now BEING Built which VIII
Atve IL n Practical Test-No Cors Used,

II Mr.. vsu wyck's Isvention Dees All re
Hopes Grenter speed Also IL Possible
y Yacht Now Being Built which win
Aivo IL n Practical Test-No CoEs Used.
II tho claims Of Timothy G. Van wyck. q
Brooklyn inventor, for the machinery of q
small yacht nov being built by the Crosby
Yacht building Company Of South Brooklyn
should be realized passengers might DO able
soon to cross the Atlantic In four days. Mr.
Van Wyck has been at work on this Invention
ev'r since he was boy. and last year he tried
his ~srfectcd plan on q small boat rugged up for
the occasion and was greatly pleased with the
result 20. Van wyck describes his invention
as follsse.
1t Is simply disk with grooves cut into its
face. The disk Is twice the size OF tho main
shaft on which IL 10 placed. Into the grooves
on the disk At rollers fastened to cranks. With
the revolution Of the shaft the rollers move to
and fro In the grooves and communicate mo-
tion to the cranks. and they In turn rovolvo the
shaft or shafts as may be arranged according
TO the size OF the boat propelled. For every
revolution Of the main shaft the dies send its
oranks around twice, making . gain of 80 per
cent. 10 the revolutions Of the propeller. with
out the aid Of cogwheels, thus materially re-
ducinE friction and doing away entirely with
the ordinary Earring motion In q boat.
Mr.. Van Wyck calls his invention q wheel
much on the same prIneipI. as the bali e ssa Tsry
mechanism Of bicycle. The diameter of each
circle described by crank pin Ia equal 10 only
one-hAif tho diameter Of the grooved disk or
driving wheel. thus obtaining two revolutions
OF the cranks for one OF the shaft. In the case
OF u large boat 1t will be necessary to apply one
disk to each main shaft or propeller but in a
small launch two propoliers may be run by one
The late Norman l.. Munro promised to build
. boat Ike the Now Then to carry this move
msnt and told Mr.. Van wyek that It was Just
~ n hA bad h.st lNak l,... -.
8 said that the Chief Engineer Of the Navy
Department told Mr. Van wyck the scheme
S was good one, which only needed practical
adoption In the navy. With the advent Of the
boat that Is now being specially built to show
has little doubt that revolution in tho propel-
Ing machinery OF boat. will take place. With
a boat like the Yankee Doodle or tho Now Then
speeding generally means n lying up for weeks
on account OF tho strain on the machinery.
VIII the disk movement u Is asserted that tho
propeller runs as smoothly as the W heels of "A
bicycle and that all Earring Is removed.
While the movement has been tested on 25-
tages. the Crosby Yacht building COMPANY, A.
the foot OF forty-socond street, south Brooklyn
a practical test OF just what the Invention ia
capable OF doing In building the yacht Crosby
has adopted the spoon bow, as he declares II to
be safer, ana that tho boat can be driven at n
higher speed than with eithera plumb .tem or
selipper bow. tho lines forward being fuller
giving Saoyancg more on III. the boat ep'idss
neither OF the other two bows can give.
The other bows while driving into a
head sea are apt TO bury themselves and
take tons OF water over them. making II impo..
.ltle for any one with safety. to stand on the
deck forward. The greatest beam OF the new
yacht IL Just forward OF the midship section
whore tho boiler and engines are placed. and
from Their. aft the beam has been gradually
Diminished until II ends In an elliptical stern
The water line extends about four feet astern OF
the after end Of the deck. The object claim ed
by Crosby In this stern 10 that 1t will do n way
with all drag and give the water no place 10
climb up on.
-. The line, OF the yacht are particularly fns
throughout. and tho entrance offers practically
no Resistance to the water. Att. the run Il clean
and clear. Tho deck II flush. with tho excep-
ton OF n canvas hood wheclhou.o forward and
mahogany compsnionway leading to the cabin
AFT. which IL to 10 finished In white pinr and
mahogsn5. The keel and frames are of oak tho
latter being steam bent. and tho piauking be-
low tho water line will BE- OF cedar. The top
sides are of yellow pine. The Dimensions Of the
yacht are SO feet over all. 4s feet water line. 7
feet beam. is inches drRught II Is expected
that With 1000 revolutions from tho l50-h
power engine which she will carry the yacht
will be driven at a speed OF between twenty
seven and thirty miles an hour. This may DO
Increased after the trial.