William H. Ukers (author)
- Ellis M. Potter is granted patent for direct-flame gas coffee roasting machine 1899 ⟨in the United States⟩
Ellis M. Potter, New York, is granted a United States patent on a direct-flame gas coffee roasting machine
judge verdicts (2)
- groundedness 1.00 pass — The claim is directly supported by the passage, which explicitly states that 'Ellis M. Potter, New York, is granted a United States patent on a direct-flame gas coffee roasting machine' in 1899, matching all key elements of the claim.
- qualifier_fidelity 1.00 pass — All qualifiers are faithful to the passage. The viewpoint is correctly attributed to the author (the passage presents this as fact, not attributed to a named source). The stance is appropriately 'asserts' as the passage states this as established fact. The sentiment is neutral, matching the passage's neutral tone. The time (1899) matches the passage exactly. The context 'in the United States' is faithful to the passage's specification of 'United States patent'. The quote is verbatim from the passage and directly supports the claim.