St. Johnsbury Caledonian. [volume] (St. Johnsbury, Vt.) 1867-1919, 1868-06-12
MANUFACTURE AND MECHANISM OF THE
PLATFORM SCALE.

PLATFORM SCALE.
In connection with tiiS historical
sketch OF the invention and exhibit of tie
growth and prosperity OF tie enterprise.
= -uccinct account oi the manufacture
and peculiar mechanism OF the scale may
be ot some interest to many thousand of
the readers OF the Post
Work upon the scale, amer the ma,c-
rial i all delivered 1T the factory, first
cummcnceS il the foundry. whcr, nj! the
castings are made, ,hi- branch Of the
+ hT-iu">s being i'll charge ol }lr. Frank
Walker. W no has been connected with
tie establishment; from his boyhuod. and
who has reduced the science ot moulding
10y hi, many improvements 10 Il nicely.
This foundry l. new building. mcl-ur-
in" 10 lG3 feet, amd contains three
Large cupaloS for melting the pig. In
these cupalo- AN avcrage of thirteen tons
Of iron are melted every day, which Mr..
Walker converts into castings OF various
designs and magnitude for the scales.
On being removed from the moulding pits
these castings are first taken to the clean
my room where they are placed i'll the
vitriul vat~ tor the purpose of renewing
ali rou.Irnr,.. When taken from tha-
yots fine casliur, are 50 uerlrrt. In, .,I.-
t:,rrs mr.. all 50 smontb and oven that nn
fling j. ncc,ied TO fit them tor the finish
inm process which they receive from the
painter and Ilpanrr. Ga ic1Vin. the
,.;,r;,J r,,,,,,, Ill ....,;,,... .,r. ,.,r,,, ,I
r.,r.,, ,.I.,.L.,n;,L .i,,,, .,,t,i,.;,,., r.,,..
"a io 20 t;,rrc.. where tbrv or. JriIl..1
..,vr.,,,I,t IRON. f,..,,d .rI tr.. .,,,r,.
,I,,...,.,,.T,. f,,.I 4,r ,I,o nav. ,...i.....
~. ,r,. rax.t .I,..J ;,,o l,r...
,.,,,.i,,.,
,,birh i done with me-. .,uj ,.r,'i,,.
machinery invented by Nj. TnadIru,
Fairbanks. The threads up,n t,,.-..r,.,,
mr.. ,h, same -, tho,,. emf twrrl, v.,,..
ao,-,nd 80 ar. All other uar,: of fine
seal. ,h.n p-,.b Ey.r,fI,i,., in fac, L.-
I'M, hrou,ht IN ;oa prrt.., -rauBarl :,
f.,, IT,, ,.,.,. ,,,. mar, ni. -b. .,.i, T.. l.,,l.-
-, ,r L.., H.. rL,, -.nnr in pri. ar Se,
Er.r.i.c, il ,.,n .r nu,,. H., -r,,,,I,..l
I, iii. sam. ,n,r,,p,r, ,b. r.,,i,. ,.,l-
i-i..J hr.,.- ,,..,n,. ,,b,,.l, ,,.,,..,,- f,
mos, .;,.,y.,. ,.,r,. ,f tn. seal. .,.. f,..r
,,.;.,, short ,J,...-,,,.,,.,.,,
l,,. ,.n.,,,. II ,t,,.,.,f tl,.. ,n,-, i,.,,lI,n.
,.I.....,. ,,...,,.,,.;-,, g., ~. -..-.. il, f...
,...,,,,.r,--r,.- ais, l,.i,, ..,..f..,. :..., "a.
Sir F'..r..ub--... b.Ai.. ..-. .,.~..:
.., 3D.. .,r ,.r...-- ., ,..--
r....
.l....-i ,:..1....,.. ..,.l O.. ......... ...
I..... :,......,.. ..-..,. ,,......... r.. .u
...,.,.. .r..... .,.,
t.....t ,..,
....., ~.
i.....,. I,......., ,,,;. ,,....,
I,...,. ........ ............. ..............
I'm. ...... ,... ....-.- 49,. r...r-,.....
v..,t, .ll ;lr u... i->l u.-, off a..
platform scale /. ,n,,.lv unt ol -,.''.
.i.-.. ..vr.~. ..~ We. know .rr.. l.r..l
..rm to u-c. ir:-rna.n - they j.. a..
-l-a.. ,var. rs the Jewels Il 3: watch. r..r-
-i-. ., ions v.,h t...v ...-,.1 -..l
-ur.aras anil small steel -l.ou.!,t .r a.-l-
with h;y...v J. .h-Hal A.it. ,,-.-. winch
whcI aI.u-,vi RES ul''n t..'-lr.. -ur.r,--
of tie lo.p~. ij.- .- .:nu. e. ava.l FREE
Jivn, wAlra L. the -r,i. obstacle To- be
overcome in makinL = correct balance
T.,~c loops a;tcr hring mi,I.I arr ali
carefully filed with a revolving lie of the
vcry finest character, 50 tha; il any
scratches are lett upon the surface ct tine
i'"i'' NOW IL ''''t' - u mn ''' '"' wall