New-York daily tribune. [volume] (New-York [N.Y.]) 1842-1866, 1858-10-11
Netp!Vmk daily Gribna1s
INDUSTRY AND INTENTION

| STEAM C,rGE-Pateu;ed by Victor Beaumont
! in 1854 and but recently perfected. One of theae
Instruments has been placed tie boiler in our press
| room by Mr.. C. W. Copeland, the general agent Of
| the Company, where it may be seen at work by the
side Of two other gauges differently constructed The
only gauges known ten years ago were the mercury
gauge the air gauge and the piston gauge for loco
motives The first is costly and cumbersome, its
length for measuring 80 lbs pressure being q
feet The second breaks easily, the divisions
are small and asceI;aning the pressure 10y looking
Mt the instrument i. work that ordinary 6remen
carefully dispense with piston pressed by
steam against n spring is unreliable, on account
| of friction In june, l49, Eugene Bourbon
took out patent in France for spring gauge, 10
which the pressure of steam is indicated by hand on
graduated dial. Inside the is elastic metallic
vessel 20 shaped change its form when steam is
let in, and il is united by proper mechanism to the
hand which points out TIE result. The great superb
orty of this gauge over former ones is obvious No
LIQUIDS are used there are joints consequently no
leakage. The gauge is cheap aud compact and its
indications are read at glance from any part of the
| engine room. This instrument carried the highest
award at the great London exhibition Of 1851, and in
the subsequent year patented in the United States
and the patent bought by Ashcroft, under whose name
| II il generally known. The claim read thus:
q" claim the application Of curved twisted tubes whose
section differ. from ccna FORM for the eonsirc
OF instruments for measuring indicating and regulating me
| pressure and temperature OF HUNS
! Since 1859 about twelve patents have been granted
for dial gauges in which the elastic verce wus differ
ent from Iourdons Corrugated Disks, made OF steel
or diaprams made of India rubber, are the main iea-
ture in most Of them The first substance is destroyed
bv ustipg especially where water il used India
rubber in still shorter time undergocs internal chem
zeal changes and requires to be renewed. In the new
! steam gauge the aim has been TO embody all the
qualities of Bourlon's by using an elastic ves.
sci Of brass closed on all sides except that OF
the boiler and to avoid tue vibrations OF the hand or
pointer resulting from the momentum Of the tube, held
by one end for each jerk Of the locomotive to which
the gauge is attached To obtain this result, the e!as-
tic vessels formed Of hatened hollow spheres COM
rnuncating together side OF each sphere = turned
inside so that under the pressure Of steam one part Is
extended and the other is compressed. The regularly
diminishing motion of the extended parts ~ thus COM
nensated by the regularly increasing motion of the
compressed portions and the graduation il perfectly
uniform for the range Of the gauge Large surfaces
are thus exposed TO the action of steam, which acts in
consequence with great deal of power, beside which
,l effect Of momentum il so insignificant, that the
! capre NAV be struck with great force on the table
without the pointer vibrating in the least This gauge
| is the cheapest in the market.
| DooR LocK-Pateuled June Is, 1858, By j. X
Nar.ton-A few years ago talented burglar dis
| covered that 10y taking with pincer firm hold OF
the end Of key, it could be made to turn and that
thus tie door Of sleeping apartments could be opened
from tie outside. This knowledge having spread
rspidly md led to numerous practical applications,
some inventors set 10 work and devised number of
Instruments called burglar alarms. In some OF these
bell is made to ing; in others, powder TO explode,
! or a gas-hurner is Lighted with o cracking noise,
| either by means of electricity or Of wound-up
! sprpe ec,ing by friction on a match. Dir. harston
accomplishes the same result, by placing the iu''de
tsvbole OF locks ont OF line With the outede one.
This arrangement renders it impossible 70 turn the
key from the outside but il leaves the outside key
hole empty, and the lock might he picked through it.
To obviate this, the lock IL provided with Gliding
NIECE which receives rs motion from the key in exactly
tho same manner ss the bolt, and which moves over
the outside key-hoe and closes it Theoretically each
time the door is locked from the inside. Tie key is
shaped 20 az to have action on this Ride when used
from tie outside. As it is the interest OF keepers
10 provide for tie security Of the property Of their
guests there is uo doubt tui this lock VIII be exten-
sively used.
N.R1a C.ovYRsoR, Invented by Thomas Silver Of
Philadelphia TIE ordinary ball governor wos in.
vented by James Watt o. part O! the stean engine.
In THE instrument two heavy balls attached TO the
trenities Of two. rods erculeted CT then ether end
with vertical shaft, made 10 rotate with il, re.
ceivn1 motion from the engine. Centrifugal force Is
| thus produced which overcomes gravity and forces
the balls to separate end 60 up in circle to distances
proportional to TIE velocity Of the machine. the
balls and rods are properly connected with thro,e
valve in tie stesn-ppe, 20 ths, this k vide
opeu when the velocity is small ind entirely olused
the moment velocity is reached beyond which it is
not desirable 10 20. The instrument, depending On
gravity fer As accurate action, cannot bs u.ei on
board a shp, where tie rolling aud pitching would
throw !. in al inclined position, in which the weight Of
the balls would make il at q, the wrong time. Mr..
silver obvs.os this ran by adding Two ball. to
eauibra4 the two first and by substituting the action
Of sprng TO that Of gravity. The four balls Of equal
,1e are attached to two rods working pin
tbroseh their center and through small shan- A
movable sleeve on this fha is connected with the two
rods half way between The halI- And The center pin.
l. IL.