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Aluminum Safety or Miners Hard Hat 12 Inch Rim - Pat US2177145 - Vintage 1940s, US $54 – Picture 0
Aluminum Safety or Miners Hard Hat 12 Inch Rim - Pat US2177145 - Vintage 1940s, US $54 – Picture 0

Aluminum Safety Or Miners Hard Hat 12 Inch Rim - Pat Us2177145 - Vintage 1940s

US $54

  • College Park, Maryland, United States
  • May 25th
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Aluminum Safety or Miners Hard Hat 12-Inch Rim - Pat US2177145 - Vintage1940s Vintage hard hat with suspension liner (leather, lacing, canvas webbing) made by B.F. McDonald Co., Los Angeles, CA in the 1940s. Shows signs of an eventful work life - dents, scuffs, chips in the paint & penciled work notes on the interior. Measures 12" from front to back of rim. Weighs 15 ounces. There are two patents related to this item: US2177145 and US2415214 Text below is adapted from a portion of the patent US2177145 description found on Google/patents (complete copy of text will be enclosed with the hat, when hat is shipped): Description  (OCR text may contain errors) Oct. 24, 1939. H. a. LEWIS 2,177,145 7 SAFETY am: Filed Oct. 15, 1935 [/v YEN TOR Ho WA R0 8. L Ewas Arroe/wsx Patented on. 24, 1939 a 2,177,145 . UNITED STATES PATENT OFFICE SAFETY HAT Howard B. Lewis, Venice, Calif. Application October 15, 1935, Serial No. 45,039 11 Claims. (01. 2-4) My invention relates to a protecting device, and It is a corresponding object of my invention to more particularly to a safety hat. Provide a rigid crown and head engaging means In many fields of work, such as the construction for supporting the crown in [in work on] oil well derricks, buildings and tunnels ... adjustable to 5 mining operations, there is a considerable hazard vary the extent to which the head may project 6 from falling objects which frequently maim or kill into the crown. the workmen. In such fields of work as mining, A head protecting device [is needed as] there is also a considerable danger of head [injury that can be prevented by using] rigid material, such as metal, [to protect] from collision with objectionable because of the likelihood of its being 10 depending or projecting ledges or the like. broken or deformed when it is dropped or when its [m?] It is an object of my invention to provide a head edge [that protects when] subjected to impact ...

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