US Patent: 1,949,742
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| Filing Machine
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Patentees:
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| Benjamin Grob (exact or similar names) - West Allis, Milwaukee County, WI |
| Theodore Grob (exact or similar names) - West Allis, Milwaukee County, WI |
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Patent Dates:
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| Applied: |
May 22, 1930 |
| Granted: |
Mar. 06, 1934 |
| Reissue Information: |
| Reissued as RE19,999 (Jun. 09, 1936) |
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Patent Pictures:
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Joel Havens
"Vintage Machinery" entry for Grob, Inc.
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Description: |
| Abstract:
An object of the invention is to provide an improved abrasion device which is simple and durable in general construction, and which is more relatively flexible and highly efficient in operation. Another object of the invention is to provide various improvements in the construction of power operated filing machines or the like, wherein the abrasive or working surfaces are movable in one direction only while engaging the work, and travel at substantially constant speed. A further object of the invention is to provide improvements in the construction of endless file transporting structures for filing machines or the like, and improved mechanism for propelling such transporting structures. Still another object of the invention is to provide improvements in driving mechanisms and work supports for machine tools, and especially for tools wherein the stretch portion of an endless band type of tool carrier is utilized to perform the work intended. Another object of the invention is to provide various improvements in the details of construction and in the mode of operating filing machines or the like, whereby the cost of construction and operation thereof are reduced to a minimum while preserving maximum efficiency.
Claim:
In combination, a series of files, a series of links supporting said files, said links having over-lg lapping ends provided with aligned transverse openings of equal diameter, and pivot pins having medial portions of diameter substantially equal to that of said openings and having end portions of reduced diameter, said pins connecting the successive links of said series to provide an endless file carrier. |
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