Document 71O8Jk7MpK4MDLqV0YLbzkErV
}Q(>1 Xcttcmal Safety Congress
directly beneath the passing crane. In order ;o eliminate tin* hazard, we installed an overhead air-activated drop gate.
This gate consists chiefly of a round bar from which is suspended straps of asbestos. When litc crane nears the doorway, contact is made with a third rail, which energizes the air-activated piston, which in turn
causes the drop-gate to lower. The asbcflostraps on the gate arc approximately 2* j feet long and swing freely on the bar from which they arc suspended, so that if a worker should he immediately tinder the gate as it drops, lie would not sustain any injury.
V
E. JAMES. Safety Dir.. Sunstrand CotpM Rockford. III. Subject: Relocation of Cooling Fans
Our air circulating fans mounted on pedestals were being placed in lumrdous locations such as aisles and other areas having heavy traffic.
Our hydraulic division's plant engineering department picked up this problem, studied it, and solved it this way. They removed the fans from their pedestals. They then placed the fans on permanent mounts which
had l*ccn attached to selected building columns. The building columns used were those selected on the basis of air movement needed during the hot summer months.
This cliangc not only removed a serious injury potential, it also eliminated a lot of controversy over who was going to use or place the fan.
VI
J. K. SKIPTON. Safety Supvr.. WKM Dtv.. ACF Industries. Subject: Shaving Shield on an Engine Lathe
A shax'ing shield on an engine lathe pro tects the operator from flying shavings thrown oft by the chuck iaws or the re volving work.
Tits principle used here is a curved horizontal 12-inchcs-wide shield on roller
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{tarings tlial c;m be pushed left or right cn a li inch by 2 inch angle iron track the length of the lathe carriage. It can be pushed over the engine housing to the operator's left when lie needs to chuck his work or to his right clear of tool post. The operator uses the shield as work dic tates and at whatever point needed depend ing on location of the cutting tool. It has a removable plcxiglas window to have work and tool visible. Where a coolant is used, it contains it within the machine. The skirt on back of shield under the :j inch angle track protects adjacent .pcmtions and helpbalance the front overhang.
The roller bearings make it very easy f. >r the operator, with a fingertip touclu to move the shield freely without interference :< l:s production.
The shield lias been successful in pre venting bums and other injuries from the firing chips.
Automotfc'e and Machine Shop Section
VII
ARRON COX, Sonvr.-Safety St Fire Prevention, ACF Industries, Inc., Albuquerque Div.
A. Magnesium Extinguishing Powdc Cart
This piece of fire protection equipment is basically a garden and lawn cart with an attached fid and leg tray. The lid is attached
C. Magnesium Scrap Cans
The magnesium scrap can is a safe means of controlling magnesium scrap ami in providing a system of control for the fire potential involved in magnesium scrap within a plant area.
The on is made of ff-inch steel plate. It is 36 inches deep and 30 inches in
to disallow contamination of the extinguish ing powder with metal chips and other debris. The leg tray is added to the cart to support a 2X shovel blade while the shovel liandle rests on the can handle.
This magnesium fire extinguisher has proved to be a very useful piece of equip ment. It is very portable; holds SO to 60 pounds of extinguishing powder: the wide opening of the lid makes the powder very accessible, and the 2X shovel provide an ample amount of powder plus being a use ful tool to remove burning particles and for clean-up operations.
The carl and shovel are both painted red and marked "FOR MAG FIRES ONLY" in white letters.
U. Crane Hot Line Lights
Two red fights extending from a 440 volt *o HO volt transformer which is tied directly ir< line from the crane power supply act as caution lights to crane operators and maintenance personnel. There are two hot line stations on each crane circuit mounted above the crane rails, and are clearly visible to ihe crane operators am! other Iiersonnel.
Tlie ftot line lights are not used to indi cate the crane power line hot or not hot. but are used mainly as caution indicators and disconnect monitors.
diameter. At 90 degree segments there are braced ^-inch pipes extending 5 inches from the wall of the can. With this con struction, should a fire exist in a magnesium scrap can. a lift truck or crane can easily and rapidly ronove the can to a safety area without danger of the burning magne sium being contained in a shop or spread ing it about while attempting to remove it from a shep area.
While a magnesium scrap can is in a shop, it is provided with a fid made of rolled one-inch angle iron and 1/16-inch -Jicct steel with a large handle attached to the lid center. The lid -is basically used to disallow scrap contamination with other materials and to hold back the fire potential from cigarettes and lighted matches.
LX I-ever Drop Lock
The machine lever drop lock was installed on an engine lathe housing between the high and low range back gear lever posi tions tc prevent accidental range speed change of tlie back gear. The drop lock is set on an angular plate with an offset pin in tlie drop lock arm base to always cause it to be extended. In order to change range
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