This section is from the "Modern Machine Shop Construction, Equipment, And Management" book, by Oscar E. Perrigo. Also see Amazon: Modern Machine Shop Construction, Equipment, And Management.
This kind of a room is shown in Fig. 157. It is located between the storehouse and the machine shop. The floor should be of brick, hard asphalt, or concrete. On the side toward the storehouse are bins for holding dry colors. These should be raised 3 inches from the floor and be constructed of ⅞-inch pine, similar in form to the bins in the carpenter shop storeroom, but with covers hinged at the top, for excluding dirt. On each side of the door is a bench 2 feet wide and 30 inches high, for convenience in mixing paints. Over each bench is a series of four shelves, 10 inches wide and placed respectively 12, 10, 9, and 8 inches apart from the bench up. These will be convenient for storing small cans of ground paints, brushes, sandpaper, and similar articles. Beneath the benches should be a shelf 16 inches from the floor, and each bench should be provided with a drawer 2 feet square and 8 inches deep, and furnished with a lock. The remainder of the space on the side toward the machine shop should be provided with a platform 16 inches from the floor, for holding barrels of oil, turpentine, etc., on their sides, and for barrels of such dry materials as it is not desirable to put in the bins.
Fig. 157. Plan of Paint Room.
If considerable lamp black is used there should be a large galvanized receptacle, round or square, with a tightly fitting cover, for its storage, as there is always the danger of spontaneous combustion to be feared from it. Beneath the oil and the turpentine barrels there should be a drip pan of strong galvanized iron. The use of the lighter petroleum products such as gasoline should be avoided, if possible. If we are compelled to use them a separate storeroom should be built in the yard. It should have an iron roof, as a matter of ordinary protection. Any inflammable materials of this kind in use in the shops should be returned to it each night and taken out in the morning. The paint room should, of course, be always locked when none of the regular painters are working in it.
The wash rooms as well as the water-closets are located in the rear portion of the power house and upon each floor, the upper floor on a level with the floor of the machine shop galleries, this location being midway in the length of the machine shop proper, so within the most convenient distance from any point in the shop. There are two doors opening from the machine shop, one to be used as an entrance and the other as an exit door, to avoid the confusion that would otherwise take place if workmen going both in and out were to come in contact during the rush of the men in washing up and leaving the shops at quitting time. The plan is shown in Fig. 158.
A series of lockers are located on each side of the room its entire length, and a double row located in the center of the room. These, with a few at either end, will give one hundred and twenty-eight lockers in the room. There are, of course, an equal number in both the upper and the lower rooms. In some of the departments, for instance in the small parts storeroom, and the assembling rooms, - perhaps in the grinding room, the carpenter shop, etc., the workmen may be provided with lockers in their work rooms, but the system can be better cared for by not breaking it up too much. Between the rows of lockers are the wash sinks, constructed after the plan shown in the chapter on iron foundry equipment, affording fresh, clean water to each man. The water used by the men for washing may be warmed in winter by passing it through a steam-heating coil, and the difference in the temperature of the water no doubt would be much appreciated by the men. When water is used for washing from a sink filled for that purpose a jet of steam opening below the level of the water will be a convenient means of warming it for the use of the men.
The windows along the outer wall of the wash room are placed high enough in the wall to be above the lockers, which should be constructed of expanded metal, or its equivalent, but never of boards, or in any way to prevent the free circulation of air, and of sanitary cleanliness.
The water-closet room opens from the wash rooms. Windows open from each side, and there is an additional one at the far end. Those on the sides are placed high enough to be out of the way of the water-closets on one side and the urinals on the other. There are eighteen water-closets and twenty one urinals in the room. The urinals are divided by partitions 2 feet wide and 5 feet 8 inches high, and the water-closets are 32 inches wide and project 4 feet from the wall. Each closet is provided with a light door having double swing, spring butts, and a sliding bolt on the inside. These doors should not reach the floor by about 12 inches, and should extend to the top of the partition. The partitions should be 5 feet 8 inches high. A plan is shown in Fig. 159.
All partitions of the water-closets or urinals, if of wood, should be well painted with a heavy mineral paint, the last coat being of enamel, the preferable color being a steel gray, which is very hard and durable and will stand much washing. It will be better, of course, if these partitions are of metal, similarly painted. They may be of cast iron § of an inch thick, strengthened by suitable ribs. For the water-closets wooden partitions will be preferable. The floor should be of some non-absorbent material with no seams or joints to retain offensive odors. A smoothly surfaced cement composition, such as is used for sidewalks, and commonly called "artificial stone" will be the best that can be put down at a reasonable expense. For the second story this may be laid, 2 inches thick, over a wooden floor composed of 3 x 4 inch scantling laid on edge. A similar floor will be suitable for the wash rooms, and much more economical in the long run than a wood floor, which will have to be renewed in a few years as it will decay from the constant wetting from the wash sinks.