US1250424A - Lifting-crane. - Google Patents

Lifting-crane. Download PDF

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Publication number
US1250424A
US1250424A US17641217A US17641217A US1250424A US 1250424 A US1250424 A US 1250424A US 17641217 A US17641217 A US 17641217A US 17641217 A US17641217 A US 17641217A US 1250424 A US1250424 A US 1250424A
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US
United States
Prior art keywords
crane
lifting
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US17641217A
Inventor
Lawrence Brennan
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Individual
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Individual
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Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to US17641217A priority Critical patent/US1250424A/en
Application granted granted Critical
Publication of US1250424A publication Critical patent/US1250424A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
    • B66C23/62—Constructional features or details
    • B66C23/64—Jibs
    • B66C23/66—Outer or upper end constructions

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Jib Cranes (AREA)
  • Control And Safety Of Cranes (AREA)

Description

US17641217A 1917-06-22 1917-06-22 Lifting-crane. Expired - Lifetime US1250424A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US17641217A US1250424A (en) 1917-06-22 1917-06-22 Lifting-crane.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US17641217A US1250424A (en) 1917-06-22 1917-06-22 Lifting-crane.

Publications (1)

Publication Number Publication Date
US1250424A true US1250424A (en) 1917-12-18

Family

ID=3318154

Family Applications (1)

Application Number Title Priority Date Filing Date
US17641217A Expired - Lifetime US1250424A (en) 1917-06-22 1917-06-22 Lifting-crane.

Country Status (1)

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US (1) US1250424A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2833423A (en) * 1954-11-22 1958-05-06 James A Tucker Hoisting device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2833423A (en) * 1954-11-22 1958-05-06 James A Tucker Hoisting device

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