. Packing house and cold storage construction; a general reference work on the planning, construction and equipment of modern American meat packing plants, with special reference to the requirements of the United States government, and a complete treatise on the design of cold storage plants, including refrigeration, insulation and cost data .. . KILLING FLOORS 49 the building, and are then driven into the knocking pens,in front of each killing bed. These pens are four feet wideand eight feet long and will accommodate two cattle (seedetail in Pig. 32). Where single knocking pens are usedthey s
. Packing house and cold storage construction; a general reference work on the planning, construction and equipment of modern American meat packing plants, with special reference to the requirements of the United States government, and a complete treatise on the design of cold storage plants, including refrigeration, insulation and cost data .. . KILLING FLOORS 49 the building, and are then driven into the knocking pens,in front of each killing bed. These pens are four feet wideand eight feet long and will accommodate two cattle (seedetail in Pig. 32). Where single knocking pens are usedthey should be made only three feet wide, so that theanimals cannot turn around in the pen. After the animalshave been stunned they are rolled out on the killing floorby the raising of the front gate and the pivoted floor. They. FIG. 32—DETAIL OP KNOCKING PEN. are then hoisted to the inclined bleed-rails by a frictionhoist, placed above the rails, and suspended until all bloodhas run out. The rail is supported by heavy cast-ironhangers which are bolted to a 12xl2-inch yellow pine tim-ber, suspended from the framework above. The cattle arelowered to the floor by the drop-off hoist and after thefloor-work on the carcasses is flnished they are hoisted bythe splitting hoist to the wash rails, which are placed twelvefeet above the floor level. 50 KILLING FLOORS All hoists are of the friction type, with double wheelsoperating against a paper friction (see Fig. 33). The fric-tion drum, 12 inches in diameter, runs at 200 revolutionsper minute. The sizes of the wheels are 52x10 inches and40x10 inches, with 8xl2-inch drums, keyed to the sameshaft. The larger wheels are used for hoisting and lower-ing the carcasses to and from the bleed-rail, and thesmaller wheels operate the gates and splitting trees. The hoists are
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Keywords: ., bookcentury1900, bookdecade1910, bookidpackinghouse, bookyear1915
