US Patent: 2,372,826
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| Filing Machine
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Patentee:
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| Benjamin Grob (exact or similar names) - Grafton, Ozaukee County, WI |
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Patent Dates:
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| Applied: |
Jan. 30, 1943 |
| Granted: |
Apr. 03, 1945 |
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Patent Pictures:
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Joel Havens
"Vintage Machinery" entry for Grob, Inc.
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Description: |
| Abstract:
Machines of the type referred to are now extensively used throughout the metal working arts to give a desired contour and or finish to parts of various metal objects. Such machines ordinarily involve a longitudinal succession of rigid filing or abrasive elements attached to a continuously driven endless carrier by which they are advanced past or through a piece of work, the filing or abrading action being effected by pressing the piece of work against the rigid elements as they are thus mechanically advanced. There are kinds of work however for which such machines, as heretofore designed, are not adapted or capable of use. That is to say, in some instances, the size or shape of the work piece, or the peculiar location thereon of the part to be filed or abraded, renders the same inaccessible to the moving files or abrasive elements of such machine. An object of the present invention is to provide a filing or abrasive machine of the continuous motion type so constructed as to render the filing or abrasive elements more readily accessible to the work at hand. Another object is to provide an endless file carrier for filing and abrasive machines of the type mentioned capable of following paths of maximum deflection. Another object is to provide an endless file carrier for filing and abrasive machines of the type mentioned so constructed as to permit mounting the filing or abrasive elements on the back or inner side of the carrier. Other more specific objects and advantages will appear, expressed or implied, from the following description of an illustrative embodiment of the present invention. For purposes of illustration and explanation the invention is herein shown as embodied in a machine specially designed to file the rear marginal surfaces of turbine vanes, although the same may be advantageously utilized in filing and abrading machines for various other kinds of work.
Claim:
A machine of the character described having an endless succession of substantially fiat transversely extended filing elements or the tike, an_ endless carrier for advancing said succession of elements edgewise along a predetermined path, said elements having end portions with abrasive faces projecting laterally beyond an edge of said carrier and means for supporting a work piece within the range of operation of said projecting end portions to be acted on by said abrasive faces. |
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