| 摘要 |
This cleaner is a device for use by a butcher for vacuum cleaning bone dust off the surface of the meat and bone after he has used a saw to cut through the bone in the meat. It utilizes a vacuum created by pneumatic pressure from a conventional pneumatic pressure hose connected to any suitable source of pressure, the hose being provided with a conventional pressure control valve. The cleaner is connected to the pressure hose by a conventional detachable coupling. The cleaner consists of a somewhat flattened tube, more or less oval in cross-section, and has one end open for attachment to the pressure hose, and its other end is closed. A rigid skirt, substantially the length of the oval portion of the tube, is secured longitudinally along one shorter side of the oval tube, and a series of spaced apart, elongated slits are provided in the tube closely adjacent and beneath the skirt, so that air pressure passing therethrough provides jets of air parallel to and closely beneath the skirt, the slits being located so as to be an extension of approximately the maximum diameter of the oval tube. The cleaner is passed closely over the surface of the cut meat and bone, and the pressure jets create a vacuum on the meat surface thus pulling up the bone dust from the meat surface into the jet stream and blowing it parallel to the bottom of the skirt. A dust receptacle, preferably with an overhanging lip extending over the meat block on which the meat is located, serves to receive the dust as the cleaner is swept over the meat surface and meat block surface picking up and blowing the dust into the dust receptacle.
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