The daily Madisonian. [volume] (Washington City [i.e. Washington, D.C.]) 1841-1845, 1843-11-18
PAlNE'S TELESCOPE

Mr. PANE has furnished the Worces,er M.
Palladium with the following description Of the n,y
eriul TELESCOPE which he is now copstructipc at A..
pace VI BUSINESS IN The adjoining town Of Leicester
CLarryuLE, August Z ls43
DIAR Sin In compliance with YOUR rcous., o..
"ard you description Of the instrument we are ,.,
oo"s rg' ob solid piece Of masonry, thirh.
~ ee' square, circular rail OF nine feet radJ !,
iaid' platform Of cast iron eirc,Il ar in for, ,,
Weh,y-elght ieet diameter, supported on ,y,el,.
wheels oil four feet diameter traverse, Tins rsu a.
us piauorm lhe lube Of the telescope is elevated,
we PiAioin as you VIII perceive being so construct
co As 10 enable the manager of the instrument 10 a.
recl the tube TO any PARTICULAR point OF the heay,f
IN horizontal line. The rotary motion IL giye, g.,
,ne carriage by The action Of pnion In rack rail
we Plsuofm he power is given the pinloa
Dy dnerenial screw, acting on a wheel who's 80
passes urohsh The plnion. This arrangement CHI.
SLOW ana steady movement, and so great i.r,
power OF the hand-whee (aitached TO Tho d;fEc-,''
SIe") ulot zen pounds suspended to is arms will
give motion TO the entire instrument vb6. ,r,i,,,
VIII be nearly eight tons Ten feet from The ,dgc of
the platform an opening five feet vide extends 10 near
" IT. centre from the outer edge Of this opening an in
enned plane descends at angle that would square
oIao,us OF Tue curve Of The instrument while eng
s"'a'eu from horizontal TO perpendicular line
thus enabling the observer TO maintain Tho .a,oo 81.
ge OF VISION Nhen viewing the planet in the zenith
as IN The horizon. On each side Of The aho,c.oc,
uoned aperture rise two cast iron supports. resem.
''Nb VIC ''"'s W ~ htbNN gun carriage These sun
ports receive osst.iron framework which holds
The power-end Of the tube and forms the centrc ar
the arc described by the tube in passing from bor
zontal TO perpendicular position Another cast.
lion framework, whose area at base is tGelye feet
whose apex five, and whose height is twentv.fo,,r
feet rises from the platform, the centre of s son,r
az we Top being perpendicular 10 the cenire of IN.
Pi'utrm On The top Of this elevated frame WORT
grooved purchase wheel is rigsed over which na.s,.
cable, one end Of which is attached 10 a corerso
l'on OF braces on the tube the other pas.e. round
drum Nhlch Is worked in the same manner =. tLe 80.
VolV'ng platform, 10y diferentral screw nv III,
apparatus The tube, which IS made from uick Rns.,
ron, and IS 4o feet long aud four feet disme,cr
: raised 10 any required angle In the power end nl
NE 'uoe concaye mirror Of forty.sx niche. diane
er ana ioF'y ieet focal length is placed, having an
'Per'ute W. us centre OF SIX and ono-haif incles
mo.gh "hlch pass The lens tubes conta ming Aplana
&c, Achromalic, AID Mcnicus lenses six ami one
quarter inches in diameter 10 The focii Of the ay,,
Mirror just mentioned another mirror of fourteen
hes diameter and thrty-six feet focal length 1.
laced, from which adjusting screws extend 10 the
and OF the managing observer.
IL - well known that alteration Of ran, Is the resuu
y very high magnifylng power and thi, optical
act has led many to assert that distinct teIeseonic
ction limited TO some twelve or eighteen hundred
ower for 10 order to obtain highly magniird mage
an object, without alteration acombinaton 81 tcs
IS IS requisite and II is evident that the more dense
medium becomes, the more faint the reaeetoo oftL.
mage passing through II will appear.
ne only part OF the instrument we claim az our
"n me form and combination u ne lenses which 40
&c IRON beng limited by eighfsn HUNDRED po,s,y,
aims maEn'fyins power OF rLsvrs raou,Asp.
nave gwen you as concise description .. my