New-York tribune. [volume] (New York [N.Y.]) 1866-1924, 1873-10-06
INDUSTRLAL EXHIBITIONS.
THE AMERICAN INSTITUTE FAIR
SOME or ITS FEATURES.

The American Institute Fair is at length
pronounced complete in all its departments. IL Is
claimed that it 10 better than Of its predecessors
and especially in It's display Of machinery aud OF the
processes Of manufacture. Among other things OF IN
erest Is machine by which boots and shoes are sewed
heeled, and sand-paperei al hand work, save In the
cutting and the final Furnishing Of the heel and edge OF
the SOLE being dispensed with boot and shoe heeling
machine is exhibited which makes a large saving OF
stoc-pieces of leather being usednd reduces the cost
OF the work One movement presses the rudey cut mass
leather shape the next punches holes for the nails
the third drops the nails into the holes and another
turns it out complete II is capable OF maklng2,O
pairs of heels a day There is machine for the
manufacture Of metallic hair-brushes and knitting
machine capable Of turning ont from Is to 20 dozen
shirts and pairs. Of drawers. a. day, An
other machine knits cuffs, legeines, scarfs,
etc.. the work being elastic when finished.
machine is TO be seen for speeding silk and measurngh
at the There is oscilang engine for drly-
lug small machinery, which can be run either by steam
from ordinary boiler or by Especial boiler attached
to it to which gas applied There many ilusIra-
lions Of fancy scroll saving by O the DdDd'aW,
expert showing specimens of knives. f0rks,
chairs, etc, and even weaving clp and neck
The Zeetic Pulyerzer for pulyerzng quartz
ores, &C.. is constructed on the principle OF
violently against proaees inside, and speedily roduc-
ing them TO powder There is machine for ascertain
rlls. IL has power Of 10000 pounds, and shows the
tensile, transverse and crushing strain on an ordinary
scale-beam. The main driving engine in the building
has new arrangement 81 steam and ent-0n valves,
which pack themselves tight by means of the steam
pressure selffeedng boiler TO be seen, when - 80
arranged that the tank connected With the boiler
feeds it without the Intervention OF pump
and which regulates the wayssleye in the !'oLlcr
until the water is exhausted from tile tank planer-
exhibition, which aud planes az the
time. II is especially adapted 70 che manufacture OF
shingles. There is self-primng centrifugal pump for
rIising large volumes OF water TO small Nights It - in
tended chiefly for wrecking purposes. sOneircSsing
machiOe operates by series OF rotating hammers, so
arranged to initiate the hand operation. Tlcre
leathersputiug machine which splits from hides strips
as thin as tissue paper. TIE system OF phOtOthO
zraphy Is practically illustrated. The negative - made
10 glass is made by the use OF bichrOmate OF
potash The printing is then done on the
ordinary photographic press. Among the more Gu
riOus inventions Is an automatic writing machine. Types
hinged a circle Of steel, strike az common point
carriage moves the paper che width Of type when a
key the board is strIcF. It is capable OF writing
line OF any length up 10 eight inches MAnfOding nay
also be done by It, bank lock is shown having SIX
disks, and being constructed that 10 cannot bo
under pressure OF the bolts Two Thousand dollars IL
deposited in the hands Of Superintendent HUI, 10 lie
given to any who open the safe 70 which II Il
attached. An envelope machine is On exhibition which
gums. folds and completes 3CJ0 envelopes an hour
chrOmatic press TO be ia operation which prints
1900 impressions hour In three ColOTS.