, 1875-07-07
HOROLOCY.
A Cl,fcagonu fnrcnts Perfection
in tho Way Of Watches.
Delicate and Ingenious Mechanism OF the
feW lfateh.



naparturo Of the Inventor fof Switzerland.
Aboas the peBinn1n8 o. ~. 1ooelnooF .as'
ABBOTT H. tosses m1naIe" ',,' 1io" ts'o "" :" ioE
tof lHoe'. " LIE Aa.nu'. .1., .a.4"s' ~, ~ ~.
aoaa ot 6'AoR "s '1ue Ho''s',4"p'ua' ,p' ;" ."0
cols1'.us''e" " IVY "~s.i' '.,1s ,s.u.. .",,
hef of tnpFo'cu'e".a "hen no uenasu'1 "oa'u
ses"sa s''a's1ffse ~ a"a's+''A '" @4s <""* "~A
o'ot 'o's'' ""s" .
MAxiSo "A1fH'
To mako common watch, out-and'outr ia
task fow men would essay to make ilna
wstcil, bristli1g all oras wish raeontly~faaloned
icSotn, brilliant With tito yaryinu eolora Of \
so,n,,.naattro ounos1tion nf ',nntatu mud he,vi}.
~ ,',,,s .;"sa"a,s", "e"
"oA'oh ."o oeN'oAN' " ~" op'S4' 1"'b'o
o. eacapenoos tnccnaatash u i@oot Increased
tloueanl-fold, and which fow accomplish but
to plan aud Incorporate into watch OF tho )axt
i,nacrint,on M manv m fonr orcat tnrentions
..~ ~ t't +. .,.>s'
ary Ill sho'r cna'acter le iaeos hroclaiulipR tAc
1abofer mcchan!ciah of rare skill. and man Ut
rurnr genius. ThlB latter work IN What Mr., Pat.
ter has ACCOMPLISHED, aftor sease OF study. and
s'3 'oo''4'" "''"saF5'nR to'''
TIE WATCH,
AZ Finished and as It WIN ellonn to tho reporter,
Ia ouclosol IN gold Cargo auparont1r 81 1inca If,
.1;..,.- III ,..,.
49, '1ea o"osu ~ Au'a4' snv w. "
tue crllnatifAl hais'HI's'1l3. Although tho BAL
nt1ce-WlIoel OF tho whtct' IL exceptionally heavy,
II carries a brilliant motion with a
rorv lirht mcin.aprinc md Ia fur-
',ss,oa hi, ,,.3;,,x .,ro,.tr, ff,no
n4'Hsu "'@n 'A..n "A'o'"b "fF4 e
regulator uaaastY soon ahoVc tao nalance-
wheel IN dono away With, ,&he intontton boing to
farnis, machine yh;cl, will not need rec,,.at-
In, corl;uua1iv m In Tho caao With other tina.
e '';s'ss
Pieees' ,u,,,r.. ,,,x,,.-,,.,
tas f1asi 4Nu ot.'t.l 'N'
lbs fss OF Ms' ro.tess inventions 10 wnas 10
Ing dovico to be attached to the balance-Wheef.
Tho battle-ground Of the war which 1nuat always
wago botwoen tho desire of man for = rorfoct
record Of the flight Of timc aud tho uaturat in-
lu tho hais+spriug.
mAzn-arRzsna.
The only WY In Which tho ingenuity Of tho
humsn rnlnd has ovorcorno tho objects Of tho
tho science OF hosoloey has bson by Ear,.shawa
and Harrisona applications Of tho discovery
that natnre worka differently Oh diTorent metals,
by Joining OF metals divorsely Affected by AZ in
ereaso Or dultnnsion IT. Of temp,esatnrS: Ihta
lug Of hair~spring. Everybody knows what
delicate Affairs hnir-sprngs oro, aud everybody
foada onco year how much = crowbar would DO
worth worked up into them. Tiloro aro many
metala moro ducttlo thnn steel, but nono Which
poasoHs it's elastic properties. combined with It's
ductlllty and integrity. Thoreforc, nothing bl1t
atocl can be used ior tho har.spring. and 1t muss
expand With heat and oontrac: With cold, thus
changing l.s olastio properties; and, II there 10
any compensation effected to uoutraliEs this uu-
pleasant variation in its tensonal foroo, 1t must
DO affected in tho baIanca- -wAnol. several years
ago all lair springs wero put ,un witches in tlat
spirals; .acn souso man dncorcrea TINT better
eprlng were carried tack over 10 tue ceu.ro,
forming sort Of hel1; then, last. caao tho
cylindrical fofu tho littlo hprlllE making ror-
feet tnbe. giving Thu gEea,eat elasticity NTH sim
iiar longthn., Mr.. potser 10 common with
otacr mociauioihna tiglits tue hair
spring from thc vA,ataEo.erou1tl Of Tho balancc-
wheel. In tho highest type at Watches lo'oto-
orH-is hns been found possible to uulifS the Of
feeta Of tho errors Of tho hais,spriak at any two
tlaoso roiusa tho ratios Of contraction in THO hal-
Aioe aua li.u!pulon Of tho ioFeo III !''o sprng.
words. tic moment Of iuoEtl4 ju tho taInuao