New-York daily tribune. [volume] (New-York [N.Y.]) 1842-1866, 1856-10-15

whJn TIE pressure exceeds a certain desvce AMI q
iil.nc closes dampef IN the chimney. IL somewhat
similar to Clsks Regulator use in many manufao1s
res and steamer but seems les likely TO fail from rup
tufr became part Of the flexible maternal IS cSu-
| relied 70 cake sny short bends.
Geo. II. ksyro.dss Cutoff, in use on one Of tho
large steam Ccgines, is very simple and fictionless
device for ting the motion of engine by vary
ing the point Of ,>u,-ef. cylindrical valve; tbs
pressure OF steam ,-bich is perfectly balanced and
which turns almost withoLt friction is plsced fos this
purpose on the back Of the s.de-yave and made 10
trrn Itself at periods controlled by ,he governor bslh
T. t. Rogers Au,i-Frction Excen.rc seems wei
calculaed<c do for the excrtrc smployedin steam.
engines, all that antifrction wheels do for ordinary
bearings In this invention the large amount OF frc-
ton attending the use Of the e1centiics. either for
wo king large valves or heavy pumps, etc. is re,acei
probably frum 20 to - per cent. The only difficulty
attending the use of such devices the liability OF thu
parts 10 arrangement, which seems however to be in
this device tclerably web guarded against.
Buffers Rotary Lock for street dcors is exh hted on
door. fun size showing the extreme ea.e OF opening
from the inside by simply prllng the knob without
stepping to turn the same and the impossibisiy Of
Opening from the outside without the proper key This
lock is safer scanst burglars than many of the large
locks uscd on stores and warehouses; yet the key 10
mail and very similar in appearance to wha, two
shilling piece would he with few notchcs filed in one
Of is sides No house containing goods worth stealing
should be without this unpickable and extremely
yenient streetdoor lock.
Parsons Waybling Action for the riano-forte con-
ssts N an ingenious but simple mechanism by whict
any given blow Of the hammers on the strngs u re-
peated very rapidly, as long may be desired The
effect is to maintain any given note or chord with per
feet uniformity, Ike church organ, instead OF dying
away usual Ii is governed by pedals, and the
sound may he sweled or diminished OF triled etc.
at pleasure, while the fingers are employed other
parts of the keyboard. II is in almost constant
Aubn's Portable Gas Works in different sizes snd
styles occupy considerable space in the south end u
The Machine Arcade. Resin is minglcd with sswdust
cno deposited in deep pan in the top OF stove, the
cover of which pan rctort is sealed by dipping into
groove filed With melted solder. This simple apps
ratvs, with an equally simple method Of purifying tho
product (by miDgling with steam and then allowing
the latter TO CONDENSED capable Of supplying sua-
ccpt quantity of the most highly Illuminating gas To
light large mandatory or hotel at very moderate
expense either for material or attendance.
Ritors Breakwa,er Golfer Dam lately introduced oa
the lower Mississippi for stopping orevasses in the L.
wees is exhibited OF y in very unaractive model, but
may be Of great service in stopping breaks in canals
crywhere. II consists plank paes each with stout
lip or hange botcd side TO project along
ore edge. log plank being frst thrown across tho
opening the piles successfully driven down, eaof
pile tapping its Hange upon the last, til the current %
stopped after whch earth may be applied at leisure.
1t in short perfectly practicable method of apply.
ing sheet pling' in y rapid current.