Every evening, Wilmington daily commercial., 1921-06-28

49, &1~ts
age. For more than nine months lie
had been in the habit after school
hours pf riding and apfinting on HE
tricycle. In the public park with his
COMPANIONS The surface nf the park
reserved for cycles was almost as
str Doth a. a cinder track johns tfl.
cycle was side-drisen and had cen.
tral drop frame. The tires were very
small like racing tires and we're ad.
nlfably adapted for racing or sprint
ing ON a smooth track
Towards the end Of 1857 1 procured
small dise of wood, made an air tube
N sheet rubber and secured II To the
dc IN q temporary fashion bv means
af very thin strip or cover of linen
cloth. The front wheel with It's solid
tire was removed from tho tricycle.
and in my business yard | gave a
private demonstration Of the relative
speed Of the two tires The air tire
proved ineotnpara biy faster than the
sulid. Later the boy was riding to
the park and as it was market day
he found ms he often did before that
the farmers carts occupied the ma
cadamized part uf the road and as he
could not ride on the rough setta he
had 10 hurry 1n and make the air
tires. When they we're finished for
the two wheels-the front fork was
too narrow To take an mir tire--he
went out and was able to take all
parts pf the rad rough and smooth
ard when examined there vas not
scratch uu the surface ~ the tires
H. 4.
return valve and outside the wooden
rims were tied like those of foot
hall and concealed in the recesses Of
the rims subsequently an up-to-date
tricycle. was built with air tires and
in trials against fast running hi
cycles Il was found that the boy vas
able to keen NJ with the beet of them"
Mr. Dunlop explained the problems
which had To be solved If protecting
tbe air tire. THE great funda mental
principles. he added. Of ar air tire
construction with speed in view are
fpre and aft rigidity combined with
tht greatest tnossible elasticity in
direction fadia ~ the hub Fer sreed
purposes there should be n s little dis
placement Of material forming the
tires az possible. therefore the tire
should be pumped hard and the ma
terial light consistent with strength.
wear and tear
The new invention was aonn put on
The market ard company formed to
splnit Il an tho bicycle racing ka
ran away with al the prlzaa m
appearance i iaaked clumsy as fafn-
Rred with the neat solid tire and for
! iinla it's appearance evoked shouts
y tieriaien nnt soon as ord North
life sa Id ~ received the magnificent
advertisement of being barred from
hn races When | asked MIR Dunlon
{ he had made much money ont nf
iis Invention he ~ i'll refIertiYrIv "Mnt I
- much as ] should nave made. and 4
II en- he added with a certain bitter I
leze, 'if | had II 70 do again. and IL 1
had any idea that I should have 1
,een attacked as ] have been never /
sonid have divulged II I am quite /
.nre that my life would have been /
more valuable than any money / +
isvr made out of II The most *
thing was that when The !
'neuma IT, tire tame Df age ( Eof 4 /
sreat reception in London but III
would not be allowed 10 speak one
word +"
When he was - years of age Mr.
ornlop went for tour in America
where he Was received with extra +
rdlnary enthusiasm Of which no
poke II with the most profound
Al the summer meeting Of f
h. societs Of Automobile Engineers
shieh was held on board A stea rrier On
he Great Lakes he heard what he d.
sfibed as ono If the best lectures ne
yer listened 10 On the subject III
ites and h. Mas privileged TO open
b, discussion on Il and e. give a hrs
nry Of his own tire one reason why
= admired the Americans was that
eoy We're all business when there was
lsiness tn be done and when Il was
yer they would enjoy themselves
Mr.. Dunlop delights to show his
isitors the relics of his early in
8 ntions and IN a workroafn in tho
q sement there are many things which
yelists and motorists would like to
pend hours over
Married at an eafly age to a north
ireland lady. who was born in the
sme year as himself. Mr.. Dunlop had
very happy married domestic life
I'd Mrs Dunlop. also in her SD year
still strong and vigorous and shares
the homage which is showered so
herally by people all over the world
on her distinguished husband.