The Detroit times., 1911-02-20
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constructed OF jncombustibis ma
teriais
such exits and stairways may be
constructed Inside the walls OF the
building provided such stairways
are surrounded by lncombustible
four 90 Inches thick. separating
the same from the Auditorium.
Such partitions shall be carried At
each floor construction on support
ing frames OF nreproof construc-
tion.
Sec. 10. EXITS. The main exits
shall be of sufficient width TO ac-
commodate the entire audience
computed on the basis OF twenty
t2O) iches OF width In the clear 70
each one hundred g00) perma-
~ C2o1 inches for a fractional part
OF each one hundred u0o) such
seats. and no exit shall be less
than five (5) feet wide In the clear
except as hereinafter provided Tor
emergency exits.
The Main exits from the Audi
torium shall be at the end OF the
building opposite the stage and at
least equal in their aggregate
width OF opening 10 the aggregate
OF the greatest widths stns. OF t fro%
which Is taken care or by such
exits.
There shall be separate and dis.
tinct exits from the Main Floor.
into common Lobby ar ihto-tAe
streeS. and the width OF said
Lobby, and OF the exits therefrom,
shall be at least equal 10 the COM
blned width OF all stairs. cor
ridors and psssaseways opening
All Balcony and Gallery exits
shall start with width OF not
less than four (D feet at the up
permost gallery.
comics shall not communicate with
the basement or cellar:
Sec. Ia. EMERGENCY EXITS
AND STAIRwAYS, The. sides OF
court or street shall have two q,
emergency exits on each side or
the ground floors.
An Emergency exit not less than
three CD feet wide shall be pro-
vided on each side OF each Balcony
and Gallery opening onto an out
side platform not less than three
and one-half (3h) feet In width.
From each such Balcony ana Gal.
lery exit there shall be provided
separate and distinct stairway,
not less than three (O feet In
width which shall lead down 10
the ground. Such stairs shall be
constructed with a rise OF not over
eight and one-half (sh) inches to
the step. and with a tread OF not
less than nine (s) inches In width.
Such stairways shall not land on
any public street or alley, but TX
one or more sides of the building
borders on such street or alley the
width OF such stairways from the
lot line. Such stairways shall DC
OF ample strength and shall be pro-
vided with strong hand-rails. and
shall be subject TO the approvai OF
the Department OF Buildings.
The aggregate width of such
emergency stairways shall not
be less than ten (1o) inches
for every one hundred (1oO per-
sons served thereby. and no single
stairway shah be less than , inrse
these stairs shall be lowered dur
Ing all performances.
Where all such stairways are In
an Inner court, each run shall De
covered by a light awning OF iron.
lery nearest the street. shall De
entirely separate from the exits
from the other floors. and shall
serve only the gallery. whenever
of the Auditorium. will permit
there shall be at least two CD
additional exits from the middle
portion OF the seating space In the
Gallery to the corridor below, with
the exits from the same into the
nection with the Balcony stairway.
All such stairways, exits. ETC..
shall be kept clear of all obstruc-
tions OF every kind. including snow
Sec. Is. sTAIRwAYs. The stair
ways In all Theaters shall be con-
structed or incombustible materials
as hereinbefore required In Article
XXI.
Balconies and Galleries with a
seating capacity not to exceed
less than four ca separate and
distinct means or exit for each. two
such exits at opposite sides OF the
Auditorium and two at the rear OF
each Balcony and Gallery. The
of the Auditorium may be those as
hereinbefore required for Emer-
gency Exits.
When the seating capacity OF
any Balcony or Gallery shall ex-
coed eight hundred 5000 then such
provided for each as shall be re-
CURED by the Department OF Build
ings.
The cut OF the stair-stringers
shall not exceed seven and one
half G1D inches rise. nor be les,
than ten and one-half (1oh)
inches tread. riser to riser. There
shall be no flights OF stairs Of
more than fifteen (15) treads ba-
tween landings or less than three
CD treads between landings.
Every landing shall be not less
riser to riser When straight stars
turn directly on themselves. a
landing OF the full width OF both
flights. without any steps shall be
provided; The outer line OF land.
ings shall be curved to a radius OF
not less than two CD feet to avoid
square angles. Stairs running at
an angle shall have a proper land
ing without winders introduced at
the turn. No door shall open i'm
but a landing at least two CD feet
wider than the width OF the door
opening. shall be provided between
such stairs and such doors. When
two side Nights connect with one
main flight no winders shall be in
troduced, and the width of the
main flight shall he at least equal
70 the aggregate width OF the side
The width OF all stairs shall be
hand rails or the hand rail and the
wall.
Winding. spiral or circular stairs
are hereby prohibited.
Sec. 16. HAND RAILS ON
STAIRS. ALI enclosed stairways
shall have on both sides, strong
wall. about three (3) inches dis
tant therefrom ana not more than
three CD feet higN above the
stairs.
stairways open on one side with
a box or open rail- on the open
side. shall have a hand rail on the
closed side as hereinbefore pro-
vided for enclosed stairways.
All stairways, eight go feet and
over in width shall be provided
with central rail OF metal or
hard wood, not less than two (2)