Joseph Jenckes Sr.

By 1645,[lower-alpha 1] Joseph Jenckes was associated with the Hammersmith ironworks, later called the Saugus Iron Works. The Saugus Iron Works used the most advanced technology of the time and was the first successful integrated ironworks in North America.[15]

Map of the partially restored Saugus Iron Works

The business venture to build an integrated ironworks on the Saugus River began long before Jenckes arrived. In the late 1620s, bog iron ore was discovered in the Saugus River marshes near Lynn. In 1641, John Winthrop the Younger had samples of the ore shipped to England and soon afterwards an investment consortium headed by Winthrop called "The Company of Undertakers of the Iron Works in New England" invested in the proposed Saugus River project. In 1645, Winthrop resigned his position as company agent and was succeeded by Richard Leader. Leader chose the site and laid out the plan for the ironworks at the newly-formed company town called Hammersmith. The ironworks started operations in 1646 and, at its peak, engaged more than 200 workers.[16][17]

In 1647, Richard Leader gave permission to Jenckes to erect his foundry and forge along the tailrace (water channel) below the Saugus Iron Works blast furnace. In the mid-1650s, the Company of Undertakers entered bankruptcy and as part of the settlement much of the Saugus Iron Works—Jenckes's shop, the rolling mill, the slitting mill, and a corn mill—was awarded to a local businessman, Joseph Armitage. In 1656, Jenckes mortgaged his home and purchased these structures and the machines they contained. In 1678, the ironworks ceased producing iron, and in 1682 the dam was removed above Jenckes's shop. Jenckes died the following year in 1683.[18][19]

Products recovered from Jenckes site displayed at Saugus Iron Works Museum

Between 1948 and 1953, archaeologist Roland W. Robbins excavated various sites at the Saugus Iron Works. In 1952, Robbins excavated what he called the "Jenks Site" where Jenckes built his foundry and forge on the tailrace. He uncovered a wrought-iron tuyere (bellows pipe), an anvil base, axes, chisels, knives, four water wheels, a water wheel hub and shaft, a cannonball, a sawmill saw blade, a scythe, hoes, spades, ox and horse shoes, and other objects. He discovered the "likely remains of Jenks' forge hearth" and he found the remains of a slitting mill and evidence of a wire-making operation.[20]

First machine patent in North America

In 1646, Jenckes was granted the first machine patent in North America.[21] He received a 14-year patent for a new kind of water-driven machine to make scythes, sawmill saw blades, and other edged tools. In his application to the Massachusetts General Court, he asked for “the usuall priveleg and liberty Granted by the high Court of Parliament in England to men that doe first sett upon workes of this nature”. He explained that he had “expended his estate, study, and labour, and have brought things to perfection; Another when he seeth it makes the like; and soe I loose the benefit of that I have studied for many yeeres before; which will tend to my Great damadg if not my utter undoeing”. The patent was issued by the General Court and bore the signatures of Governor John Winthrop and Deputy Edward Rawson.[22][23]

First casting in North America

1930 marker displayed at the Saugus Iron Works Museum

Jenckes made the first iron casting in North America. The small pot with three legs, a lid, and bale (a handle) was presented by Jenckes to Samuel Hudson. Called the Saugus Pot, it is now displayed at the Saugus Public Library. Metallurgy tests confirmed that the pot matches metal fragments found at the site of the Jenckes forge.[24][25][26][27]

Scythe patent

In 1655, Jenckes was granted a 7-year patent for an improved scythe "for the more speedy cutting of grass." The European scythe had a straight snath (long wooden shaft) and the scythe blade was short and thick, which reduced its efficiency. The Jenckes scythe had a double-curved snath and the scythe blade was longer, thinner, and lightweight. The blade was strengthened by a chine (a rib) on back. The Jenckes scythe became known as the "American scythe" and it remains substantially unchanged today.[28][29][30][31]

Tools for the first coins in North America (probable)

In 1652, John Hull and Robert Sanderson were appointed mint masters for Massachusetts Bay Colony. According to tradition, Jenckes cut dies for the first coins minted in North America, such as the pine tree shilling. While there is no direct evidence for this claim, there is circumstantial evidence that Jenckes created steel punches, blank dies, and other tools for the Hull Mint.[32]

Jenckes had an early interest in coin making. In 1654, Jenckes wrote a letter to Edward Hull, John Hull's brother, about recruiting a die maker. In 1672, Jenckes petitioned the General Court to make coins; however, the court rejected Jenckes's request: "In ans to the humble proposal of Joseph Jenks, Sen. for ye making of money etc the Court judgeth to meet not to grant his request."[33] In the 1650s, Hammersmith had the only blast furnace hot enough to make steel or case hardened wrought iron punches, die blanks, crucibles, and other tools that Hull and Sanderson required.[32]

First fire engine in North America (inconclusive)

Boston suffered a serious fire in 1653 and the following year the selectmen of Boston approved the purchase of fire engines from Joseph Jenckes: "The select men have power and liberty hereby to agree with Joseph Jynks for Ingins to Carry water in Case of fire, if they see Cause soe to doe." In 1702 the selectmen referred to an old engine in need of repairs which may have been the Jenckes engine. However, no document confirming that Jenckes made the engine has been found.[34]

The legend of Thomas Veale (folklore)

In 1658, according to popular legend,[lower-alpha 2] Captain Thomas Veale and three other pirates sailed up the Saugus River. The pirates visited the Saugus Iron Works at night and left a note on the door of Jenckes's forge requesting shackles. They hid in Lynn Forest at a place now called Pirates' Glen. The order was filled, but the shackles were used on three of the pirates. Veale escaped and buried his treasure in a nearby cavern, now called Dungeon Rock, where he died during an earthquake.[24][35][36][37]

• American Foundry Society. "About Metalcasting". www.afsinc.org. Retrieved January 15, 2019.
• Brown, Travis (1994). Popular Patents: America's First Inventions from the Airplane to the Zipper. Scarecrow Press. ISBN 9781578860104.
• Browne, William Bradford (1952). Genealogy of the Jenks family of America. Concord, NH: Rumford Press.
• Browne, William Bradford; Colket, Meredith Bright (1956). The Jenks family of England; supplement, compiled under the terms of the will of Harlan W. Jenks, deceased. Boston Public Library.
• Colket, Meredith B. Jr. (1956). "The Jenks Family of England". New England Historical and Genealogical Register. 110: 9–20, 81–93, 161–172, 244–256.
• Dobyns, Kenneth W. (1994). The Patent Office pony: a history of the early Patent Office. Fredericksburg, VA: Sergeant Kirkland's Museum and Historical Society. ISBN 9780963213747.
• Fish, F. P. (1909). "The Patent System in its Relation to Industrial Development". Transactions of the American Institute of Electrical Engineers. XXVIII (1): 313–339. doi:10.1109/T-AIEE.1909.4768169. ISSN 0096-3860. S2CID 51646472.
• Griswold, William A.; Linebaugh, Donald W. (2010). Saugus Iron Works: The Roland W. Robbins Excavations, 1948–1953 (PDF). National Park Service, U.S. Department of the Interior.
• Jordan, Louis (2002). John Hull: the mint and the economics of Massachusetts coinage. Hanover, NH: University Press of New England. ISBN 9781584652922.
• Lewis, Alonzo; Eddy, James (1829). Map of Lynn and Saugus : settled in 1629. Boston: Pendleton's Lithography.
• Lewis, Alonzo (1829). The history of Lynn. Boston: Press of J. H. Eastburn.
• Marine Research Society (1837). The Pirates Own Book, Or Authentic Narratives of the Lives, Exploits, and Executions of the Most Celebrated Sea Robbers. Sanborn & Carter.
• Newhall, James R; Newhall, Israel Augustus; Newhall, Howard Mudge (1897). History of Lynn, Essex county, Massachusetts: including Lynnfield, Saugus, Swampscott, and Nahant. Vol. II. Lynn, MA: Nicholls Press. OCLC 17967166.
• Saugus Public Library. "Iron pot made at ironworks kept in Lynn Library". digitalheritage.noblenet.org. Retrieved January 13, 2019.{{cite web}}: CS1 maint: ref duplicates default (link)
• Skinner, Charles M. (1896). Myths and legends of our own land. Vol. 2. Philadelphia & London: J.P. Lippincott company.
• Southwick, Leslie (2001). London Silver-hilted Swords: Their Makers, Suppliers and Allied Traders, with Directory. Royal Armouries. ISBN 9780948092473.
• Southwick, Leslie (2009). "The London Cutler 'Benjamin Stone' and the Hounslow Sword and Blade Manufactories". Arms & Armour. 6 (1): 12–61. doi:10.1179/174962609X417518. S2CID 162347004.
• Timer, Present (1915). "Foundries of the Early American Days". International Molders' and Foundry Workers' Journal. 51: 967–968.
• United States Agricultural Society (1858). Field trial of reapers, mowers and harvest implements. Boston: Bazin. OCLC 15511268.