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.
The space for bar stock is located conveniently to the railroad track and the tram car track, and contains two racks for bar stock, the larger one for full length bars of iron and machine steel, and the smaller one for ordinary cast steel and tool steel bars. The larger of these racks is shown in perspective in Fig. 130. This is constructed of oak timbers formed into a rectangular frame, strongly bolted together and resting on good foundations capable of supporting the heavy weights of stock likely to be placed in the racks. Three of these frames are erected, six or seven feet apart and braced by cross braces as shown. The timbers should be 6 inches square and provided with iron supports for the bar stock. These should be spaced further apart at the bottom than at the top, the bottom space being, say, fifteen inches, and the top space eight inches, center to center of cross bars. These supports should be flat, say ⅝ by 1« inch for the upper three; for the next two, ¾ by 1¾; and the two lower ones, 1 inch by 2. It may be preferred to make the three or four lower supports of 1⅜-inch round steel, upon which are placed pieces of 1«-inch gas pipe, turning freely, and so facilitating the running in and out of heavy bars. As seen in the engraving, the right-hand end of the frames may be securely bolted to the brick walls, and the cross braces on this end be omitted. At the opposite, or front end of the frames, the sill timber projects from the front of the frame about three feet, and upon this are erected heavy cast iron supports, of the form shown, which will be found very convenient for holding heavy bars, as they are open at the front, and bars may be readily lifted from the tram cars to them. Experience has shown this to be a very convenient, useful, and substantial form of bar stock rack. In place of wooden timbers cast iron supports may be used, but the cost will be much greater and the results not enough better to compensate for the added expense.
The smaller rack is built on the same plan, and may be constructed with or without the cast iron racks in front of it. It should have substantial cross braces between its frames, and also be securely braced from the brick wall. For a shop rack the form shown in Fig. 131 will be found very convenient.
Fig. 130. Rack for Bar Stock, (or Storing Long Bars of Iron and Steel.
The A-shaped supports are of cast iron, securely braced by cross braces bolted on as shown. The base of the supports might be made relatively narrower than shown in the drawing without endangering their stability. Such a rack may be made of any number of supports and placed at any desired intervals apart that the work may require. Once we have the pattern, we may make as many castings as we choose and arrange them to suit any existing conditions. Usually they should not be over 5 feet high, unless rather small and light stock is to be placed on the upper supports. The lower projecting supports may be about 10 inches long and the top ones about 7 inches.
The wash room is located in one of the rear corners, and in connection with the water-closets, which open out of it. A single wash sink of similar construction to the one illustrated and described in the article on foundry equipment is provided, and the individual lockers for the use of the men, and built of expanded metal, are arranged on both sides of the room in the usual manner. In the water-closets six urinals and four closet seats are provided, the latter protected by double-hinged swinging doors, and the former separated by dividing partitions two feet wide. Both should be provided with an ample supply of water for automatically flushing them. The windows lighting the wash room and water-closets are placed high enough in the wall so as not to interfere with the lockers or the urinals.
Fig. 131. Small Rack for Ordinary Cast Steel and Tool Steel Bars.
By the plans herein given all of the requirements of the operatives are placed conveniently within the building, so that whether for stock, fuel, or any reasonable cause, there is no necessity of leaving the building, as it is a well-known fact that men working near artificial heat, as do those at forges, are very sensitive to both heat and cold out of doors, and that to make proper provision for their health, comfort, and convenience, while at their work, is not only proper and commendable in itself, but always conducive to their efficiency as workmen.