The Detroit times., 1910-12-07
council


edo platform not less tnah tnItc
and one-haif tSh feet In wi ndI
iery exit there shall be provided
separate and distinct stairway.
not less than three go feet In
width which shall lead down 10
the ground. Such stairs shall be
constructed with a rise OF not over
eight and one-haIf sh) inches TO
the step, and with a tread OF not
less than nine (9) inches In width
Such stairways shall not land or
any public street or alley, but II
borders on such street or alley tho
building shall be set back the
width OF such stairways from the
lot line. Such stairways shall DE
OF ample strength and shall De pro,
vided with strong hand-rails. ana
shall be subject TO the approvai OF
the Department. OF Buildings.
The aggregate width or such
emergency stairways shall not
be less than tea CO inches
for every one hundred (lo0) per-
sons served thereby. and no single
CD feet wide. II counterweightea'
these stairs shall be lowered our
ing all performances. 4,
Where all such stairways are IN
an inner court. each run snail De
covered by light awning or IRON.
j.
lery nearest the street. shall oe
entirely separate from the exits
from the other floors, and snail
serve only tho gallery. whenever
practicable and the size and heignt
OF the Auditorium will permit
there shall be at least two (eJI
additional exits from the middle
portion OF the seating space In tho
Gallery 10 the corridor below, with
the exits from the same into the
Gallery stairway and without con-
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 OF incombustible materials
as hereinbeforo required in NArticie
xxrI.
Balconies and Galleries with a
seating capacity not to exceed
eight hundred (So0) shall have not
less than four ca separate and
distinct means OF exit for each. two
such exits at opposite sides OF the
Auditorium and two at the rear OF
each Balcony and Gallery. The
means OF exit for each at the sides
OF the. Auditorium may be those as
hereinbefore required for Elmer
gency Exits.
When. the seating capacity of
any Balcony or Gallery shall ex-
coed eight hundred 5000 then such
additional means OF exit shall be
provided for each as shall be re-
CURED by the Department OF Build
ings.
The cut OF the stair-stringer
shall not exceed seven and one
half Gn inches rise. nor be less
than ten and one-halt G0h)
inches tread. riser to riser. There
NJ On ra of
more than fifteen G5) treads ba-
tween landings or less than three
tsl treads between landings.
Every landing shall be not less
In width than four ca feet from
riser to riser. When straight stairs
turn directly on themselves. a
landing of the full width OF both
Nights. without any steps shall be
provided. The outer line OF land
fngs 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 wfnders introduced at
the turn. No door shall open i'm
mediately upon a Night Of stairs. |
but a landing at least two (2 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 Hight no winders shall be in
troduced, and the width OF the
main flight shall be at least equal
70 the aggregate width OF the side
The width of all stairs shall be
measured In the clear between the
hand rails or the hand rail and the
wall.
Winding. spiral or circular stairs
sTx sf IT, All Ha enclosed eA Stairway ON
shall have on both sides, strong
wall. about three CD inches dis
tsnt therefrom ana not more than
three ts) feet hisN above the
stairways open on one side with
2 box or open rail on the open
side. shall have a hand rail on the
yided for enclosed stairways.
All stairways, eight (S) feet and
over In width shall be provided
with central rail OF metal or
hard wood. not less than two .(2)
height OF not more than three CAY
feet above the center of the treads.
supported on wrought metal or
orass standards of sufficient
strength, securely boited to the
both. and at the head OF each
night OF stairs and on each side
OF the landing. the post or the
standard shall be at least six (6) |
feet I'm height. and the rail- shall |
Sec. II. SIZE of LoBBIEs
ETC. Preceding each division OF |
the Theatre. there shall be Foyers.
Lobbies. Corridors or Passages. the |
sEEreEate capacity OF which on
dcient to contain the whole num-
Der to be accommodated on such |
Floor or Gallery. In the ratio OF
one % square foot OF floor room
Sec. is. ExiTs FROM ROOMS
AND STAGE SHALL BE PRoVIDe
ED. All rooms in Theatres for the
use or persons employed therein. |
shall have passageways leading TO
az least two CD independent means
There shall be at least one tp
exit on each side or the stage, not
less than four co feet in width.
opening directly upon a street or
alley or TO the open space herein
There shall be iron stairways
the ny gallery above tie stsgs
20 scuttle hole in the roof
OF the building leading 20 a Are
ws~ p "r OF 20 some hreproof passage
All stairs on the stage side OF
nc proscenium wall shall not he
less than two CD feet six (s1
inches wide. W.
Ser: 10. EXITS FROM SUR
STAGE. There shall be provided |
In all cases fireproof door at each |
end or sub-staRe. at least three
(3) feet In width, opening outward
from the basement under the stage
into an outside passageway or onto
a stairway OF fireproof construc-
tfon Leading to the open space here
inbefore provided for. or 10 a land
ing between the building and the
sidewalk. and IL such stairway be
on the street side OF n theatre
building located on a corner lot, the
area way for such stairway shall be
protected above the ground with
strong iron railing OF not less than
three CD feet In height and with a
strong movable bar extending
across the approach TO the stair
way at the grade.
Sec. 20 DOORS OF EXIT. All