be0d71ec3fa24eaba2eacc931f4c586b

Die-lock chainmaking process diagram (top to bottom):

Die-lock chainmaking process diagram (top to bottom):

1) rolled nickel-steel rods (from 3/4-inch to 4-3/4 inch in diameter) are cut into shorter bars; 2) the cut bars are heated in a gas furnace to 2100 degrees Fahrenheit. The now-malleable bars are bent by machine into U-shapes; 3) The U-bars are stamped to form stems, with tapered and ridged ends, or they have holes punched in the ends to form sockets; 4) the stem is hooked onto the last completed link and placed in a die; the socket is heated, and the two are joined under a 10,000-pound hammer; 5) the link is completed and a red undercoat and grey paint helps retard rusting.

Abbr=PUB

U.S. National Park Service

Project=Charlestown Navy Yard Handbook; Art_Registration_No=PUB-0118 ; Reflective Art

Government owns art and all reproduction rights.

Public domain

Gouache and/or acrylic, (HFC ArtMedium)

Image

Boston National Historical Park, Code: BOST

Boston National Historical Park, Suffolk County, Massachusetts
Latitude: 42.3734016418457, Longitude: -71.0557022094727

Image Management System : IMS 09129

HFC Commissioned Art Collection

20190904

01/01/1995 - 12/30/1995

Image_Size=8" x 9-1/2"; Count: 5/5; HFC-Publications' Charlestown Navy Yard handbook, page 60

MC B1

Public Can View

Batchelor, John/John Batchelor Ltd.

Organization: Harpers Ferry Center
Address: Harpers Ferry Center, 67 Mather Place, Harpers Ferry, WV, 25425, 304-535-5050

Thursday, October 3, 2019 1:15:54 PM

Thursday, October 3, 2019 1:15:54 PM

09129.jpg

jpg

52.2 kB

Museum

Harpers Ferry Center