New-York tribune., 1905-07-09

the point of revolution; when opened. IT is held in
position by a rod, the upper end OF which is at
tached a fusble link. which melts at 165 degrees
Fahrenheit, releasing the sash. which then swings
shut and locks. This lock is the manufacturers
design, and is made without springs; the bolt
which is operated by a weight, of BRASS avoid
any possibility OF the moving parts rusting together.
The wire glass is held in place by series of ceats
formed out of the sash. Though the practical
tests their windows have undergone, in the many
years they have been in use have rendered them
decidedly skeptical TO the value Of the radia-
ton theory, Vogtmann & Co. recognizing that
there may be situations where dangerous radiation
heat may obtain through the ordinary glazing Of
wire glass. have constructed a double glazed ven
tilated and removable SASH that would seem to
meet all needs anti-radiator. The parts OF
this are necessarily larger than in single glazed
for holding the additional pane of wire glass. This
frame is provided, across the top and bottom. with
ventilatlng ducts Thls particular construction IS
preferred by certain authorities fire retardaEts,
on the ground that the heat arising from externai M
nres would set Up clrcuaton OF alr petWeen tle
two lights of wire glass which would materially
are recommended only for extIa hazardous risks.
such as a light court and windows overlooking ad:
joining roofs; for general use. the single glazed
window answers all needs.
No statement to the efficiency OF these win
dows will so bring conviction to the minds OF The
Tribune readers will a description of how they
have acted III practical tests In 1888 fire started
at o'clock In the afternoon in Armour & Co.'S
felt factory IN chicago: TINS was Was an aVe 70 story o-
proximity to other buildings with these standard
for ventilation. but instantly closed and locked
themselves. The intensity of the fire can best be
square and that it took them two hours to burn up
before the upper walls fell; yet the time OF this
falling, the entire south side which has loo VIM
fecty confined and pre1ented its nm
to warehouse within fifteen feet which contained
a $4,000 stock. The windows in that part of the
wall that ala not fall held the fire throughout
rour lard refinery where the tons upon tons or
burning lard generated heat than which none
glass windows Of the several walls prevented any
Co. plant, within seventy feet west. AS q croWning
pressure directed against it. and as Mr. Hall.
the assistant manager, said, didn't feaze it, To
get stream within the walls the iremen had to
effect openings with axes through the wire glass.
ea Ch,eI nIusnth' 45 & Lne Chleago s1re depart
There is doubt in my own mind that all down
town buildings should be completely equipped with
these windows"
The roster Of the important structures which
have been supplied with the Voigtmann windows
would occupy more space than be spared here;
but, as the names of certain of the important
eoncerns-scattered throughout the eountry-that
have adopted them, as fire safeguards for their
Bile testimony TO their efficiency and likely 10 in
spirs the desired confidence in them among Trib-
sent them: Armour & CO. in Chicago TS Fort 70 dr pre-
and Atlanta, l,s41 windows; Mccormick Harvesting
Machine Company, Chicago. AT windows; Kimbaii
cry Ward 4 Co. Chicago, ss5 windows Tribune
Building, Chicago u6 windows; Marshall Field a
Kansas City 1o5 windows King1nan Company.
Peoria. Kansas City 147 windows; Bernis Bag Com
Inter Ocean Building, Chicago Eastman Kodak
Racine; sprague. Warner & Co.. Chicago; Ameri-
Company, Chicago Edison Company Hammond
Packing Company all OF Chicago: Scoviii Manu-
Lanet eotfon Kills west Point Ca eOnA Ana and bsle the
the the metropolitan district the Whitehall Building:
ave-; the yarick Building Washington and west
factory, Hudson and Vandam SITS, and the. Siiis
warehouse. dth-st and 10th-ave.. Manhattan; the
the Robert Gair Co building. washington ana
Plymouth sts-. BROOKLYN: the Colgate & Co. fac
the Butler Bres' warehouse Jersey C,itv. ana The
Pacific Coast Borax Co.'S works at Bayonne, N J.
FIREPRooF ROOFS
The servceability Of reinforced concrete for roof
construction has been suggested in the course OF
the consideration OF the various coneretesteel sys
TENS though stress has been chiefly laid upon tts
superiority hollow tile in floor arches and par
be described in subsequent number are best
adapted 10 massive buildings. Considering the
we'll 70 give precedence the description OF a
roof that s adapted to the vast majority
ures.
f. A stoweiI. who has devoted many years
and whose theoretical knowledge and practical ex-
perlence give him rank an authority thinks
That:
ION the score OF economy, ughtness. dura-
Of its fire and acid proof qualities the asphalt roof
is most worthy Of mention in discussion OF the
sirable for great public buildings Office buildings
and edifces OF like character these are In the
private dwellings OF the ornamental cottage order
barns and STRUCTURES or Ike description, II s decid-