The Seattle post-intelligencer. [volume] (Seattle, Wash. Terr. [Wash.]) 1888-1914, 1897-06-06
snecial corresponaenes.

s-rs. 10 cheaper tia sssysta u ~ gFati-
80 n yearn that a concern wi-n Esracti-
nv un,in,ited capital IL contemplating
.snufsrture of bicycle when VIII De
I..ssnicaiiy perfect and 1p-to-date In ce-
- Ara detail! TIE other day ! learned OF
:. enterprise OF this kind the projectors
80 rsat,Sy corporation located in one
,uladls states. This concern has
80 . fortune In tbs past twenty years
-. she manufacture OF agricultural ma
49, and implements, ard for the last
- AZ four years has had a corps OF ex-
- crrhanlcx studying bicycle construc-
-. ~s.h n view TO producing wheel
sss.h ID, er,ody all that IL good in
,s~xe;Ss without regard to making a ma
~sars 20 eel al Il low Or attractive price.
~ Mentity Of the company Is not 10 be
1870 far songe time and "a the move
.sst, Of their experts have been guarded
: 4 10 BE- Supposed that the new wheel VIII
s.saiv Be- ready for public Inspection until
-. rear. possibly Inter. had talk WITH
8. seuior member OF the firm the o'ner
a. and am acquainted with one OF MS ex-
-. They have told me their method OF
s.lse,far material. and II IL certainly a
-. usans OF arriving az fhe desired end.
-, ,aa.ance. There are a number Of typea
- ,nbanx used ia bicycle construction, ths
ian hraxsG. the lock- joint braxei, the seam
- cola drawn and the Ia per gauge. which
= "a made In two ways. by drawing from
~ bllst and By using sheet Htesl OF the
,sxhf thickness at the right places. tapping
/. ans welding the joint electrically.
TIE braxed tubing. such as Is found In
ss.arsrnant store Bicycles, Is made from
ssses steel, cut 20 widths and lengths suit
Ais for working. the edges brought To-
eefaee around a n.andrel, and the joint
ssased with spel,er. preferably OF a higher
melting poln. than that used 10 sraze bicy-
Gle frames The lock loint tubing Is made
st.h ssrratlons or notches along the edge
a. the seam, no that a d0Ye-tailcd or nit
sred toInt results when the edges are
trnasni together The union of these
afre, IL secured In the same manner al IN
lie fsrst mentioned type. namely. by braz-
itx This tubing Il satisfactory In the
majority uf cases. nut by overheating in
:rssae hrax,ng the joint Is weakened. and
~ The manufactures who are looking for
re hsss pass II By. Seamless drawn tub
iex. the sfaudar: Of the world. IS discarded
because IL calls for the use OF reinforce
menis al the joints. a process as expensive
b The end as the arc OF the more expensive
esx-pisca reinforcement which Is n part of
,ager-gaage tube. Between tae two LAST
tyass the choice OF the careful maker.
Or. TIE fitfklttfig HGiiEI AAst-s IL Eist--S
from sheet steel with a largo percentages
Of carbon and consequent ability IN stand
k.asIng, and The other. made from steel as
tIsh In carhan al can DC drawn. without 4
iolni Of any kind. there IL small choice.
However This concern placed the two side
~ side testing tho material In every con-
esiyabie way. and as result selected tho
tfavn taper gauge because there is abso-
is.sy no chance OF a tube opening under
strains.
One OF the methods OF testing tubing Is
10 drive a tapered steel plug into the tube
nGti! the tube Is split. BY inspecting the
! fracture the expert may readily determine
tie relative merits OF the tubing. II Is
nHIesahle In testing rs this method that
shs weijed taper gauge tubes have a limo
a fracture that does rot follow the line
ef the weld. bgt the most irregular fracture
b found IN a taper gauge cold drawn tube.
slowing that the chances Of breakaxe arc
rtsno;e ard always irregular. consequently
she tubing may be said to be absolutely
ssss.
In testing other materials tho Same Sc
ts;tve method has been followed Exist
Ing types OF bearings have been subjected
v Rigorous tests. and exhaustive expert
mems have been made to discover the bear
tnk which Will run with the minimum fric-
ssua. Material for bearings Is of two
binds, tool ana machinery steel One pos
srsses large percentage Of carbon and
f'ssi b. hardened by temperIng: tho other.
sith less carbon. is hardened by ca hard
sninx. The difference in the cost Of tho
material is not marked. bat the expense of
sosking the hare tool steel is considerably
mere than that 90 handling the softer met
q But better bearings can TO made OF tha
.cymsr
The designing of the frame of this pro-
leeiet wheel has been conducted on scien-
WIS lines. each frame angie being deter
miHsd With reference 20 the speed OF tho
n.shine as bearing some relation 10 tho
strength OF the frame. ard throughout
erghs has besn reduced when cosuVatibls,
WIN strength. A bicycle Is called upon Ia
cA'FF weight osi OF all proportion To ita
asa weight and II IL wonder that hicvclcS
aaae by inexperienced workmen and under
- direction Of men with no knowledge Of
slenfss OF materials and distribution of
sfsins should hold up as well rs they do.
se average factor Of safety In a bicycle
sooas Is, or one~fourih stronger than
hs actual breaking point. IL railway
Naasrs or hnil6inSs were IL he constructed
ssI tace a small margin OF safety beyond
.N aAhker nelnt the wires Of the telegraph
ssaaeniss would be kept bot with stories
Nsaihes IL II only BY an Intelligent
sssES'ahding Of Tia iwmutahie laws OF
ssxashics that \ bicycle may he ts;iit
.alon VII hold ~ under ali conditions for
SO considerable sirre
se ssss al driving Is a point OF import
- Aesng possible 70 put a wheel to-
- ser which will drive EASY under favor
49,. ~hsit'ens. hut ire machine often
- Aaa runs fard when a grade is at
)
lilies o. tasir mounts - invertine inc
aaFslne, resting II 90 ~, sassls ana So
-. a@fS' ans noting row long the wheels
49, sese'Fe or swing bu; the conditions
sna'ssea When lead IS applied. ana
ne sai hearings ara constructed
as.'ssAis = considerable part of th,
!. - sefsl1 ~ the rider is lost hsfar.
- The driving wheai The nssa-
g. sh'eftns into bearing are az nara
- importance. Ter evsst Sxsfa s.,,o4
!, a." 'as contour ~ hcarine will enar.s-a
r. go v scti'or Lacking lu uniformity.
,s., HNel7' ihat the new wheel ,trse-
ssa,.s WIS - provided WIKI new ehatn
,4rs...asss aefs>s. The present is2au~er -
~ $50. CT les's@ning a chain astgrfre -
- s.sassa variation az ina ft,sa ~ ,h.
" - "seAS = tens Impossible. save
s~.'Ses ID set the rear Nhe.1 ira th.
49, $50 40 thar ,he tu, snrorLssa 80 So,
= 49, ~ Tire 4 eeVfes, - rs.,tarnr5.t-
ss.s. $50 Wa allow the enlistment "a b.,
ssss.,s - s'e crank hanger. tan rear vh4ei
sss ga - a,ai.ri.,ly tis tae fra,s,s. against
ssss.sss " a earefally mHiet Slot. arA si,.
sasfs~ " ~"fAiss eiiAe~ as ar e...srtrt., .r
e., ~ - ., WAYS - 1has it caaaot l,e ynfs.a,,
~. S-ssFs'Essat. : device xe-,..,sl,as Ia.
AZ s'As9e Wa vsef nu..sNar ~ 49,
sse..4.sse - I, ~ Manufacturer h4s sf as
H. A...SSi' irstea6 ~ ae.aQ q--f>-,.f So
szss4s $3.50 ss tiA&esai.t Arrangement -
u - 'se Fear ~aeel Ira tse frame /. 3s,,,-,
he !, - 'T" machine il ehosya 81 a.,,
81, ns,. ..e Bear fstgra : vf1 eft-s,,.,. -,
sss--ls sSsaa.iess 81 the fsstaves ~ II a~i
~ 49, '.y.s' q Eae -latei,igeneer I'm
sss,sx - .s an iosaAias tar,, Ia tas
re - - soIas ssiher corceru v.ttf "a ~
/. .s sIse sae Tt3er all he ea..x ers -.
ts.-.-sa aANc. sgsr.ll-,.s ~ ,,,s-.,.,.
''ssss ssore co7npss.s.s,, &C.