/m VOLUME V AUTOMOTIVE AND MACHINE SHOP SECTION XT.)

It will only be poaciblo In tho few minutes that have baer. cl lot.

Industrial Hygiene Digest - It August, 1QU 839 Wav Industrial Kurelnp Courses at Tala.

41 brakes the vacuum equipment adds its power to the driver's push on the master cylinder piston rod, thus making it easier for the driver to build up a high pressure in the hydraulic brake system.

Oidirnuiii: 0.

and that is that I find that radiologists known as little about -radiographs of pneumoconiosis as general physicians know about the clinical and physiological picture of pneumo coniosis* eminent radiologist in London and he told me that the i radiological side of the-pneumoconioses had been completely; i worked out and there was no further 'cause to. do' any work in j that subject at all.

*ltten4fate TRAINING SERVICE School ol Diesel, Tractor and Heavy Equipment Courteay of BENDIX WESTINGHOUSE AIR BRAKE CO.

62 ing in loss of vacuum.

when using a new material examine the worker at rather ireqnent intervals until they define for themselves: 1.

Hair abnormalities (patchy baldness--alopecia areata).

Cataracts.

TABLE (continued) Annuel Lung Cancer Death Ratos per 100, 000 Man-Yoars of exposure by Exposure Category Exposure Category J n m Unknown Over-all Provod 33 23 19 0 25 28.

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13818 RULES AND REGULATIONS <b) Framework: (l) Minimum dimensions of material for the framework of all guards except as noted in subparagraph (S) of this paragraph shall be angle iron 1 inch x 1 inch x % inch, metal pipe of % inch in side diameter or metal construction of equivalent strength. <21 All guards shall be rigidly braced every 3 feet or fractional part of tlielr height to some fixed part of machinery or building structure.

National Safety Transactions VOL 16 MINING INDUSTRY NATIONAL SAFETY COUNCIL ^25 North Mlchtgan Avenue Chicago II, Illinois SCF-ALLF-02086