New-York tribune. [volume] (New York [N.Y.]) 1866-1924, 1880-01-19
HoRo1oGH AND THERMoNETRr At YALE


WINCHESTER oBsERvATORY-A TIME SERVICE
SIMILAR TO THAT SUPPLIED IRON CANii'iD''
The RATING or WATCHES
trpoN . SPECIAL CORRESPONDENT OF THE TRTBUNEf
NEw-HAvEY, Conn, Jan. 16.-Ihe Wei'-
wshers ol Yale College will be interested to hear "i III
creased activity her astronomical WORK, when lor 0
Of endowment has long suffered unworthy neglect io
winchester foundation for an obserVatory' OeihE "-
vestod in real estate has been and as yet unproduo
tive In November last his property turned over
NV ts trustees 10 the corporation OF Yale College hy
the corporation has appointed Board OF OVeIseeS
of the Winchester Observatory. with Professor Lynn"
as president. There Is reason 70 nope INA,
al 10 very distant dav these gentlemen VIII
he able 10 perfect means by which the Cd
scrvaiory will be organized In ali It's departments
and properly provided with instruments and en 10 use
tOem.
Meanwhile there have been equipped and are Jst no"
beginning operations departments, which from lher
nature ought 10 DE scli-,upporting' and Whch nave
every prospect OF being These Bureau OF Horo
orv and d Bureau Of ThcmomctrS Both contemplate
work winch can be done only ID connection win an
observatory but which, though conducted BY the most
decate methods. has a direct Interest Tor We
public such work has not been done hitherto 80 th's
country though It has long formed AN important ana
IN some cuscs the most important part ol the Noh o'
yalious European Ob,ervaiorlc-.
The object If the Horoio-Ica Bureau is twof.d-to
furnish standard time OF rigorous cxacucas 10 the
lc rs far as The public WISH 10 await themselves oil
II s for railroads public buildings and lcwel'rei ana
10 aid ia periecung al tituc manufactures. notably
watche-. by providing ihe means for rating Wa'ches'
clocts and chsouomecr. with high decreco accuracy
The unhlic value ana appreciation c standard time
service are at;ested hy several already in operation The
o.f rcree Of these tine quality oi Cos work j, that
uudrr the direction % the Harvard Observatory, WHICH,
aided by the hncst 0bservauoUs from thc best fru-
mens IN maintaining the accuracy OF - standard c'och
send. frnl tAs the by TELEGRAPH to hN lr"ehfra
and many pubic buildings iu Boston indicates trae
noon TO Boston 10y time bali, and, more than a re-
orl. rsricu'ar heais o. he co M every STALLION
on ,caf, 900 miles % railroad dis rlinf from Boston
ae far ~ Springfield OF the west aud Ncw-iians"icE
on the north and east The value Co railroad system
OF such slandard Of tine. an-0 utrly uniform Drasc
delivered at caeh second ou tc Same clock. aod never
eensDy different tn exact tfu'h, DO ony ~ part
cxurtss,d by the sa,ug o.. le and property tat follows
in the prevention o.: accidents Tie railroad comim-
ME- estimation OF % is O. 0ed by thc fact tnat tacy
contribute yearly TO its support some S-'oDO lLeie
IL a large ay-cm Of roads To D. reached ~ ihc same
y.ov from New-lIsven The New-lork aud New-Hayon
Road il a present debating whether s worth while 10
be at the expense Of introducing these signals. A.
prominent official recently remarked, u = go0h
thing 90 Keep TIE trains oug She Zine niue last % eet
tue people 10 IA aelpi Ii 'll' -i" 'n' W. - ~
we "a l,'uo lIaa, r,ling STOCK tc suinort an, o.
ecrvalory o. the end OF time.
lhe con peeut msuas, q nc Yale Time service
is guaranteed by tho drrciorslp OF Dr. Leonard Waldo
who l. known 10 scientists in many departments OF
astronomy aud who for some years has i.an"k'd t'
CauDrldce vice. The Introduction "i-y 'trm1iic
tasis f0r tmcpcccs IS hls own idea aud hc com- 4"
New-Havcn because Dee car obtain there i+cfillt
which Tor auiL0ilies ht t'mNilso "'I, "n".iil"E 80
grant Yale men will ice pleased 600 hno un instance h
winch thcr college mas been Wiling to take thc hi''
si.s which manufacturers have been u me habit
submitting the higher grades o. theif N"rh lnoioagh
tests al ilc obsei' atOrrT "I GENEVA anu -t1'l"'l'
These tests consist IN recording tc daily rate ana vrh-
tons o "a watch FOR suilaolc time n various post".s
Torrance % the watch is up 70 certain grade
Stating It's cAyaalio-. ard THIS for ihr better
| running pieces mum hloI'n-,h l I'.t @, 'l,.'
ten there been yearly improvement IN tir move
mcntg presented for rial. A. tIe Philadelphia ESn"si-
late 81 Ann Arbof. undertook such ost Of some OF The
watches exh jlted. and pubHs1ed a exhaustive report
The Waltham Watch Company. about 10 cnt"r AZ The
HOrooroa Bureau hund,els 81 watches Tor trai
These are deposited IN tine steel vaults Of the New
Haven safe Deposit Company .whrre by help OF chrome
rrann and teegraphlc connection they daily com
nared with the standard clock ~ the Winchester Oh
srrvatOry. Au Illustration OF the conditions under
wal.h thc watch b. rated g. as follows:
Dial up-Twrlyc days at ordinary temperatures; one
d.y IN tue Refrigeration one an' ID l,e oven ,u ,.
D.ai doan-iwo days.
The tpcrafure Of the refrigerator 400 T. and that
Of tne oven gG II the amy Haraio9 oil Ia's a wi'
seconds per day. or IA changing rom "dmi up T."
dial vertical b. not more than 10 seconds. or or ~
change temperature % not more than . seconds,
cefltcao Will be issued Of the first class In the
frgerator the watch kept at 400. T., aud ~ the
oven Al 900 These tesis, extending over more IMAM
mon ID. VIII furnish an accurate guide 10 whai NAV
be expccted Of any watch under al possible clrcuni-
stances and II Is believed thai VIII knowledge ol
the ~ stem there VIII demand for certified
watches
The Horological Bureau begins work with an e1-
cellen equipment, including transit tersco,e 3i =
inch aperture. presented 20 the college by Dr. William
Hllhouse land OF high degree ~ optical excellence
sidereal clock by Bond Sons, OF Bust0n may DE eN-
] from, IL. rsg0rd
equal the performance Of any tmepece IN the country
SO been its running that the curve repre-
senting iis daily rate ana variation Is found To CORE
spOnd very closely with the curve OF bhrpmcttic
pressure. IL II proposed TO enclose II IN an arushi
case IN which ar-pump would maintain a partial
Vacuum corresponding, say to barometer OF twenty
eight inches, thus freeing tho pendulum from Amos
pheric disturbance. There EIav also De mentioned
mean time clock from Howard * Co., OF Boston sec
ond aidereal clock lent by Dr.. HllhOuse, u clark
chronOgrap phi for watch comparisons, aud Bond honO
graph for observatory work, and large collection O
telegraphc apparatus, much OF especially designed
| for this work by Mr.. Waldo
NC ,yyrD y n az