Dayton Malleable Iron Co. Patented Smelting Ladle
SSC MUSEUM COLLECTION
Catalog No. SSC-DMICO-LDL-001
Diamond-Form Cast Iron Smelting Ladle | Loop Handle | Patented August 15, 1871 | Dayton, Ohio
Patented August 15, 1871 • The Dayton Malleable Iron Co. • Dayton, Montgomery County, Ohio • Original Patina and Working Slag Fully Preserved
Top view of the Dayton Malleable Iron Co. patented smelting ladle, showing the diamond-form cast iron cup with its four pronounced corner pour spouts, the flat connecting shank, and the distinctive U-shaped loop handle. The interior carries the deep rust-red thermal patina of a working foundry tool, layered with original dried slag — the physical evidence of 155 years of working history preserved intact under SSC Archival Black™ museum seasoning. Patented August 15, 1871. Dayton, Montgomery County, Ohio.
A brass brush and patience revealed the full story. When this ladle arrived, the handle marking was readable but soft — decades of oxidation had settled into the raised lettering, blunting the edges. After a careful pass with a brass brush, three lines of text emerged with full clarity along the inner face of the loop handle: DAYTON MALLEABLE IRON CO. on the left rail, PAT AUG 15 on the right rail, and 1871 at the base of the loop. A complete patent attribution — maker, date, and year — cast into a working foundry tool in the year it was made.
August 15, 1871. That is the exact date the United States Patent Office granted protection for this ladle’s design. It is also, as it happens, the exact same date that M. Hose & Lyon — another Dayton firm operating blocks away — received their own patent for a competing cast iron ladle design. Two Dayton manufacturers. One patent date. Two entirely different ladle designs, both protected on the same day. That is not coincidence. That is Dayton’s iron industry in full competitive motion in 1871.
The ladle speaks a different language than the hollow ware that forms the core of the SSC collection. Its cup is diamond-shaped, with four pronounced corner spouts that allow molten metal to be directed precisely in any direction. Its interior carries the rust-red thermal patina of a tool that lived in the presence of extreme heat — and dried original slag, the residue of actual poured metal, clings to the interior walls and cup floor. This is not contamination. This is evidence. SSC will not remove it.
The Patent: August 15, 1871 — and the Records That Were Lost
Close detail of the loop handle after brass brush treatment, showing the full marking in sharp relief: DAYTON MALLEABLE IRON CO. running along the left inner rail; PAT AUG 15 running along the right inner rail; 1871 at the base where the two rails meet the shank. The raised lettering is fully legible after 155 years. The brass brush clarified the lettering without altering the surrounding iron surface.
The handle carries one of the most precise patent attributions in the SSC collection: DAYTON MALLEABLE IRON CO. / PAT AUG 15 / 1871. Not just the year — the specific day. August 15, 1871. Maker, date, year, cast in iron.
Tracing this patent to a specific USPTO number presents a historically significant obstacle. A fire in the Patent Office in the late 1870s destroyed a substantial portion of the 1871–72 patent records. Patent office employees have confirmed that the printed sets for the 1871–72 group were among the records lost. The result: the specific patent number assigned to the Dayton Malleable Iron Co. ladle on August 15, 1871, cannot be definitively recovered through standard databases. The date itself is the documentary anchor, and it is cast permanently into the iron.
What the marking confirms unambiguously: as of August 15, 1871, the Dayton Malleable Iron Co. held a formal United States patent for this ladle’s design. The loop handle, the diamond cup form, and the four-spout geometry were protected by federal law. No other manufacturer could legally copy the design without authorization. The company was five years old and already protecting its innovations.
M. Hose & Lyon received their own ladle patent on the same date. Their design differs entirely — a round cup with three pour spouts and a different handle configuration, marked M. HOSE & LYON DAYTON, O. PAT’D AUG. 15, 1871. Two Dayton firms, one patent date, two competing designs: this is the competitive texture of Dayton’s iron industry in 1871, preserved in the markings of the tools both firms made.
The Diamond Cup: Four Spouts, One Ladle
Close top view of the pour cup interior showing the diamond form: four walls meeting at four corners, each corner forming a natural directional pour spout. The domed raised center of the cup floor directs molten metal toward the chosen corner during a pour. The deep rust-red thermal patina covers the walls and floor, with darker deposits of original dried slag visible throughout. This surface is exactly as it was when the ladle last saw active use — sealed and preserved, not cleaned.
Look carefully at the cup. It is not round. It is a diamond — a square rotated 45 degrees, with four walls meeting at four distinct corners, each corner forming a natural, integral pour spout. This is the patent’s core design innovation. A round cup has one pour point: wherever you tilt it. A diamond cup with four formed corner spouts has four defined pour points, each directing molten metal at a specific angle. The worker chooses which corner to tip toward the mold without repositioning the ladle in the hand.
The practical advantage in a working foundry is real. Small casting pours — lead pipe joints, bearing bushings, bullet molds, type metal for printing presses, small hardware castings — require precise directional control of small volumes of molten metal. Four distinct pour angles from a single grip position give the worker options that a round cup cannot offer. The four corner spouts are not decorations. They are the reason this ladle was patented.
The cup floor carries a domed raised center that directs molten metal toward the pour corner when the ladle is tilted, rather than pooling at the center. The walls are steep and straight. The volume is modest — this is a hand-scale tool for precision small pours, not a large-capacity transfer ladle. Every dimensional choice reflects its purpose: controlled, precise, directional pouring of small quantities of molten metal.
The Original Patina and Dried Slag: The Record SSC Will Not Erase
Full top view showing the ladle after SSC Archival Black™ museum seasoning: exterior in deep gray-black; interior cup showing the rust-red thermal patina layered with original dried slag deposits on the walls and floor. Both surfaces are exactly as they were found — sealed and stabilized, nothing removed. The brass brush was used only on the loop handle lettering. Every other surface on this tool is original and unaltered.
The interior of this ladle tells the story of its working life more directly than any patent record could. The rust-red coloration of the cup walls and floor is thermal patina — the physical transformation of iron that has undergone repeated heating and cooling cycles in the presence of molten metal. It develops through use, over time, and cannot be reproduced artificially. It is the record of the ladle’s active life.
The darker deposits visible on the interior walls and floor are original dried slag — the residue of actual poured metal. When molten lead, tin, type metal, or other low-melting-point alloys are scooped and poured, trace amounts adhere to the iron surface and cool in place. Layer by layer, over years or decades of use, these deposits accumulate into a surface record of every pour this ladle was ever used for. What you see in the photographs is not rust contamination. It is not grime. It is the preserved physical record of the ladle’s working history — a material archive baked into the iron.
SSC will not remove this. The decision is deliberate. The lye tank exists to strip accumulated contamination from hollow ware that will be re-seasoned. On a working tool like this ladle, the original surface deposits are the artifact itself, not an obstacle to treatment. Stripping them would produce clean gray iron and permanently destroy the physical evidence of 155 years of working history. There is no reversing that loss.
The brass brush was used on the loop handle lettering only — carefully applied to clarify the raised text without abrading the surrounding iron surface. No other surface on this ladle was touched by anything abrasive. The thermal patina is intact. The slag is intact. SSC Archival Black™ museum seasoning was applied to seal and stabilize both surfaces for long-term display without altering what is there.
The Loop Handle: Patented Form, Practical Engineering
Profile view of the complete ladle: diamond cup at right, flat connecting shank, U-shaped loop handle at left. The loop — a closed return at the end of the shank forming a continuous oval — can be hung on a hook or nail, gripped with fingers or palm across both rails, or rested on a horizontal surface. The entire piece is a single integral casting. The inner face of the loop carries the full patent marking.
The loop handle is the design element most likely at the heart of the August 15, 1871 patent. Rather than a straight rod or a bent strap, the handle terminates in a U-shaped closed return — the shank runs out, curves back on itself, and meets its own base, forming a continuous closed oval. The two rails of the loop run parallel, then merge into the loop apex.
This solves multiple practical problems simultaneously. The loop hangs on a hook, nail, or rack when the ladle is not in use. The two parallel rails provide a wider gripping surface than a single rod — the worker’s fingers or palm contact both rails, distributing the weight of a full cup of molten metal across a broader area and giving more stable control during a pour. The closed loop geometry prevents the ladle from rotating in the hand during a pour the way a single-rod handle can.
The entire piece — cup, shank, and loop handle — is cast as a single integral unit. No welds, no rivets, no joints that could work loose under thermal stress. The patent marking runs along the protected inner face of the loop: DAYTON MALLEABLE IRON CO. on the left rail, PAT AUG 15 on the right, 1871 at the base. The inner face is the most sheltered surface on the tool — which is why the lettering survived 155 years in readable condition.
The Dayton Malleable Iron Co.: Year Five
The Dayton Malleable Iron Co. was established in 1866 by Charles Newbold and Peter Loeb on East Third Street in Dayton, Ohio. It incorporated in 1869. The 1889 History of Dayton credited it as the second oldest malleable iron foundry west of the Allegheny Mountains. Company records spanning 1869–1969 are held at Wright State University Special Collections (MS-148); additional records are at the Hagley Museum and Library.
This ladle was patented in 1871 — the company’s fifth year, two years after incorporation. The original East Third Street plant was still the company’s home; the major expansion to West Third Street in the area called Miami City did not come until 1872. This ladle predates that expansion. It was made at the smaller original facility, before the growth that would eventually place Dayton Malleable among the world’s leading malleable iron firms.
By 1909, approximately 1,500 men worked at the West Third Street plant. Trade catalogs held at the Smithsonian National Museum of American History document a product line that expanded from foundry tools into railroad components, carriage hardware, and automobile parts. The Dayton Malleable Iron Co. that patented this small smelting ladle in 1871 became a regional industrial giant that endured for a century. This ladle is from year five.
Piece Details
Manufacturer
The Dayton Malleable Iron Co., Dayton, Montgomery County, Ohio
Piece Type
Industrial Smelting / Pouring Ladle — foundry and workshop tool
Cup Form
Diamond / square-rotated form with four pronounced corner pour spouts; domed raised center on cup floor; steep straight walls; single integral casting
Handle Form
U-shaped closed loop handle; shank terminates in continuous closed oval loop with two parallel rails; full piece single integral cast unit
Handle Marking
DAYTON MALLEABLE IRON CO. / PAT AUG 15 / 1871 — raised cast lettering on inner face of loop; left rail: company name; right rail: PAT AUG 15; base: 1871; clarified by brass brush treatment post-acquisition
Patent Date
August 15, 1871 — exact date confirmed by handle marking; same date as M. Hose & Lyon competing ladle patent, also Dayton, Ohio
Patent Number
Specific USPTO number unrecoverable — 1871–72 Patent Office records destroyed by fire in the late 1870s; August 15, 1871 is the confirmed documentary anchor
Original Patina
FULLY PRESERVED — exterior multi-toned gray-black patina; interior rust-red thermal patina from repeated heating cycles in use with molten metal; no alteration
Original Slag
FULLY PRESERVED — dried original slag deposits on interior cup walls and floor; physical residue of actual poured metal; not removed, not cleaned, sealed in place
Brass Brush Treatment
Applied to loop handle inner face only to clarify raised lettering; no abrasive treatment applied to any other surface
Preservation Method
SSC Archival Black™ museum seasoning only; applied over original unaltered surfaces; original thermal patina and slag fully preserved; no lye, no stripping, no restoration
Competing Patent
M. Hose & Lyon, Dayton, Ohio — competing ladle patented same date August 15, 1871; round cup with three pour spouts; different handle; same Dayton industrial ecosystem
Company Founded
1866 by Charles Newbold and Peter Loeb; incorporated 1869; records at Wright State University (MS-148) and Hagley Museum and Library
Company Standing
Second oldest malleable iron foundry west of the Allegheny Mountains (1889 History of Dayton); ~1,500 employees by 1909; Smithsonian holds trade catalogs
Original Plant
East Third Street, Dayton, Ohio — this ladle made at the original plant, one year before the 1872 West Third Street expansion
Date of Manufacture
c. 1871 — confirmed by patent date August 15, 1871; East Third Street plant, pre-expansion
Condition
Museum Display — all original surfaces preserved; brass brush on handle lettering only; SSC Archival Black™ applied; structurally sound; no cracks
Acquisition Source
eBay — Seller: jeffcollectiques
eBay Item No.
326511577701
Order No.
25-14478-05582
Acquisition Date
April 13, 2026
SSC Catalog No.
SSC-DMICO-LDL-001
Collection Category
Ohio Cast Iron — Pre-1905 Industrial Tools / Dayton Foundry
Why This Piece Matters
A brass brush. That’s what it took to read the full story: DAYTON MALLEABLE IRON CO. / PAT AUG 15 / 1871. Not just the year. The month and the day. August 15, 1871. And on that same specific date, M. Hose & Lyon — across town, in the same city, in the same industry — received their own ladle patent. That is Dayton’s iron trade in competitive motion, frozen in a date that both firms’ tools carry.
The original slag matters. It is the physical record of every pour this ladle ever made — the residue of molten metal that cooled against the iron walls and stayed there. Strip it and you have clean iron and no history. SSC leaves it exactly as it is.
The thermal patina matters for the same reason. The rust-red interior of the cup is the color that iron earns through 150 years of heat. You cannot apply it. You can only preserve it. SSC Archival Black™ seals it. Nothing else touches it.
The diamond cup with four corner spouts is a specific, patented engineering answer to a real problem. It is not a generic ladle. The Dayton Malleable Iron Co. designed it, filed for protection, received their patent on August 15, 1871, and cast the date into the iron. Their original slag is still in the cup.
This is what the Dayton Malleable Iron Co. looked like in year five, at the original East Third Street plant, before 1,500 workers and world-class standing. A patented loop-handle diamond-cup ladle whose marking a brass brush brings back to life after 155 years.
Sources & Further Reading
Physical examination of piece: DAYTON MALLEABLE IRON CO. / PAT AUG 15 / 1871 cast in raised lettering on inner face of loop handle (left rail: company name; right rail: PAT AUG 15; base: 1871); lettering clarified by brass brush treatment; diamond-form cup with four corner pour spouts; domed raised center on cup floor; flat shank; single integral casting; original thermal patina and dried slag deposits fully preserved; SSC Archival Black™ applied for museum display; no lye, no stripping, no alteration of any surface other than brass brush on handle lettering.
ArchiveGrid — Dayton Malleable Iron Company Records, 1869–1969. MS-148, Wright State University Special Collections and Archives. Company founding 1866; incorporation 1869; East Third Street original location; 1872 West Third Street expansion; 1,500 workers by 1909; second oldest malleable iron foundry west of the Allegheny Mountains per 1889 History of Dayton.
Hagley Museum and Library Archives — Dayton Malleable Iron Company. Additional corporate records; 6 linear feet.
Smithsonian National Museum of American History — Trade Catalogs from Dayton Malleable Iron Co. americanhistory.si.edu.
WorthPoint — M. Hose & Lyon, Dayton, Ohio, Cast Iron Ladle Pat’d Aug. 15, 1871. Competing ladle patent same date; round cup form; three pour spouts; Hose & Lyon identified as Dayton foundry producing railroad and architectural iron products.
eBay listing research — item 304254130549. Notes that patent office employees confirmed the 1871–72 patent records were destroyed by fire in the late 1870s; specific patent numbers from this window are unrecoverable through standard databases.
eBay acquisition record — Order No. 25-14478-05582, seller: jeffcollectiques, April 13, 2026. Item: Vintage Cast Iron Dayton Malleable Iron Co Smelting Ladle patented in 1871 (item no. 326511577701).
About Steve's Seasoned Classics
Steve’s Seasoned Classics is an online museum dedicated to preserving and documenting the heritage of American cast iron, with a singular focus on the obscure, defunct foundries of Ohio from the 19th and early 20th centuries. The SSC collection spans 130+ pieces from 50+ confirmed Ohio makers — the majority absent from standard collector references. Makers were identified through physical artifacts exhibiting gate marks, patent dates, foundry traits, and documented regional provenance, cross-checked against surviving trade directories, census records, and existing collector guides. Makers lacking representation in published guides but supported by physical evidence were flagged for first-time documentation — a core function of the SSC research mission.
