Harrisburg telegraph. [volume] (Harrisburg, Pa.) 1879-1948, 1915-01-01

IL =
ED BY TfiE PENNSYLVANIA INDUS
pBIAL 69ARR a2 I sqBJEcT Is TOT To TIE 9fl
SECTION 10, p l. 1919, WHICH Pro
VIDES THAT PERSONS AFFECTED
MAY PETITION THE BOARD ~, FOB OF
UPON TIE REcEiPT or SUCH PETI:
TIoNs. 1T WILL BE REVIEWED. ,, B9 BY
THE BOARD AND DIE, II CoNs5IIDItEIlRSEEDp E5II ! y SEp
WILL Biz CALLED IN REGARD
THERETO)
Standards of safety, comprising the
very best ideas on the subject on the
part of men thoroughly conversant
with q score or more branches OF IN
dustry, will be promulgated by the
State Industrial Board of the Pcnnsyl-
vania State Department of Labor and
Industry in the next few weeks. These
standards have been worked out by
committees representing employers
and employees, safety experts, casualty
experts and men who make and op-
crate the appliances.
The law under which these stand
ards have been framed permits any
person affected to petition the board
for changes in the regulations and on
receipt of such petition the board VIII
review the rules and make such
changes as appear to be necessary af-
ter a public hearing is given.
sion of power, one of the most import
ant matters in industry, If not in every
day life. and the provisions as are fol-
lows:
The word Should" where used is to
be understood as advisory and shall
as mandatory. Unless otherwise pro-
Nided for by regulations approved by
the industrial board, the following
safety regulations for transmission of
power shall apply also to all power
driven machinery having exposed col
lars, set screws, shafts, couplings,
clutches, keys, pulleys, gearings and
belts.
Emergency Stops: 4 station or sta
tions must be provided in each room,
section or department TO stop imme-
diately all power transmission therein
Such station or stations shall be prop
crly marked and easily accessible. The
prompt stoppage of machinery in an
emergency is fastened by allowing the
full load to remain on the machines
Set Collars: Set collars shall be
cylindrical, and the screws used to
fasten the same to the shaft shall not
project beyond the largest periphery
of the collar. Split collars, after as
sembly, shall conform to the above
specifications for solid collars.
Set Screws: All projecting set
screws in moving parts of machinery
shall be removed and replaced by
flush set screws.
Shafts: Horizontal shafts less than
six feet from the floor or working plat
form level including dead ends OF
same, shall be guarded, or protected
by standard railing, as provided for
horizontal belts. Shafts less than.
twenty feet in height over driveways
above floor or ground level shall be
guarded. Vertical shafts shall be en-
cased or guarded to a height of six
fnn
or be guarded by a standard railing
with not less than fifteen inches clear
ance.
Shaft Couplings: Revolving shaft
couplings shall be cylindrical and
bolts used shall not project beyond the
largest periphery of coupling or its
projecting tlanges.
Clamp Couplings: Heads and nuts
.5nf all bolts in clamp couplings shall
not project beyond the largest peri
phery. 1t is recommended that the
use of this style of coupling be dis
couraged unless guarded by cylindri-
cal sleeve, the full length of the coupl-
ing. New installations of such coupl-
ings must be guarded by a cylindrical
sleeve the full length of coupling.
Jaw Clutch Couplings Jaw clutch
couplings shall be provided with a
cylindrical sleev to cover the jaws.
Universal and Flexible Couplings:
be guarded in a manner to remove all
hazard.
Friction Clutch Couplings: Friction
clutch couplings shall have their op-
Grating mechanism completely guard
ed where exposed.
Keys: All projecting keys in re-
volving shafts, where exposed to con-
tact shall be made flush or shall be
guarded.
Pulleys: When the bearings are not
self -oiling and the clearance between
the pulley and bearing on line shafting
is thirty-siX inches or less, pulley shall
be completely guarded on side nearest
bearing and all keyways in shaft be-
tween such pulleys and bearing shall
be substantially encased or properly
filled. All parts of pulleys within
seven feet of floor or working plat
form level shall be guarded under
meath, or protected by railing as pro-
vided for horizontal belts. Where the
space between two pulleys or between
a pulley and a bearing is less than
the width Of the widest belt used. such
space shall be guarded so that the
belt cannot get between the pulleys
or between the pulley and bearing.
f1ange on side of pulley nearest bear
ing, or adjacent pulley, will be con-
sdered a guard. On counter shafts
the space between pulleys and the
nearest bearing shall not be less thar
the width of the belt used unless Sucl
space is properly guarded. A flange
on side of pulley nearest bearing, oil
adjacent pulley, will be considered q
guard.
Gears: All toothed, chain driver
and sprocket gearing used in the
transmission of power or on machin'
cry shall be completely enclosed
wherever practicable, otherwise, a
least to base of teeth. 1t Is strongl!
recommended that pulleys, gears
sprockets, sheaves. etc, having spok,
arms should be guarded by discs, al
nearly as possible flush with rims o
wheels. All friction drives shall b'
completely guarded.
Belts: Vertical and inclined belt
extending to within six feet of floor Of
working platform level shall be sub
stantially guarded as follows: If guarC
IS placed less than six inches from
belt, With en- enclosure on all sides, no
over one-half inch between member
TO a height of six feet above floor o.
working platform. If guard is place.
between six inches and fifteen inche
fn clearance from belt, with an en-
closure on all sides, not over TIVE
inches between members to a heigh
of six feet above floor or working plat
form. a standard railing may be useC
if placed to allow fifteen inches clear
ance from the belt. Where belts pas
through floor. 4 standard toe boar,
shall Orotect floor ODa1jnw If unna