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US2433537A - Lifting mechanism - Google Patents

Lifting mechanism Download PDF

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Publication number
US2433537A
US2433537A US573933A US57393345A US2433537A US 2433537 A US2433537 A US 2433537A US 573933 A US573933 A US 573933A US 57393345 A US57393345 A US 57393345A US 2433537 A US2433537 A US 2433537A
Authority
US
United States
Prior art keywords
lifting mechanism
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
US573933A
Inventor
Melvin G Ward
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Walker Manufacturing Company of Wisconsin
Original Assignee
Walker Manufacturing Company of Wisconsin
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Walker Manufacturing Company of Wisconsin filed Critical Walker Manufacturing Company of Wisconsin
Priority to US573933A priority Critical patent/US2433537A/en
Application granted granted Critical
Publication of US2433537A publication Critical patent/US2433537A/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
    • B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
    • B66F1/00—Devices, e.g. jacks, for lifting loads in predetermined steps
    • B66F1/02—Devices, e.g. jacks, for lifting loads in predetermined steps with locking elements, e.g. washers, co-operating with posts
    • B66F1/04—Devices, e.g. jacks, for lifting loads in predetermined steps with locking elements, e.g. washers, co-operating with posts the posts being toothed
    • B66F1/06—Devices, e.g. jacks, for lifting loads in predetermined steps with locking elements, e.g. washers, co-operating with posts the posts being toothed and the devices being actuated mechanically
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49462—Gear making
    • Y10T29/49467—Gear shaping
    • Y10T29/49476—Gear tooth cutting
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00—Machine element or mechanism
    • Y10T74/21—Elements
    • Y10T74/2133—Pawls and ratchets

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Mechanical Engineering (AREA)
  • Structural Engineering (AREA)
  • Steering Control In Accordance With Driving Conditions (AREA)
  • Crystals, And After-Treatments Of Crystals (AREA)
  • Magnetic Resonance Imaging Apparatus (AREA)

Description

US573933A 1945-01-22 1945-01-22 Lifting mechanism Expired - Lifetime US2433537A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US573933A US2433537A (en) 1945-01-22 1945-01-22 Lifting mechanism

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US573933A US2433537A (en) 1945-01-22 1945-01-22 Lifting mechanism

Publications (1)

Publication Number Publication Date
US2433537A true US2433537A (en) 1947-12-30

Family

ID=24293981

Family Applications (1)

Application Number Title Priority Date Filing Date
US573933A Expired - Lifetime US2433537A (en) 1945-01-22 1945-01-22 Lifting mechanism

Country Status (1)

Country Link
US (1) US2433537A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2993660A (en) * 1959-05-13 1961-07-25 Bert H Parks Fishing reel
US3029065A (en) * 1960-01-15 1962-04-10 Buddingh Cornelius Means for moving vehicles
US3163925A (en) * 1961-12-01 1965-01-05 Universal Tool & Stamping Comp Method of forming a rigid steel rack bar for automobile jacks

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1183841A (en) * 1914-07-06 1916-05-23 Edward Adell Jack for automobiles and the like.
US1394263A (en) * 1921-04-11 1921-10-18 Adell Mfg Company Inc Jack for automobiles and the like
US1511209A (en) * 1921-09-01 1924-10-14 American Tube And Stamping Com Lifting jack
US2008387A (en) * 1934-09-17 1935-07-16 Wesley J Costin Jack
US2041376A (en) * 1935-06-10 1936-05-19 Ryerson & Haynes Inc Supporting bar and rack
US2119028A (en) * 1935-06-10 1938-05-31 Ryerson & Haynes Inc Vehicle jacking structure
US2193424A (en) * 1937-05-06 1940-03-12 Logan Gear Company Lifting device
US2400235A (en) * 1945-01-22 1946-05-14 Walker Mfg Co Base structure for jacks

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1183841A (en) * 1914-07-06 1916-05-23 Edward Adell Jack for automobiles and the like.
US1394263A (en) * 1921-04-11 1921-10-18 Adell Mfg Company Inc Jack for automobiles and the like
US1511209A (en) * 1921-09-01 1924-10-14 American Tube And Stamping Com Lifting jack
US2008387A (en) * 1934-09-17 1935-07-16 Wesley J Costin Jack
US2041376A (en) * 1935-06-10 1936-05-19 Ryerson & Haynes Inc Supporting bar and rack
US2119028A (en) * 1935-06-10 1938-05-31 Ryerson & Haynes Inc Vehicle jacking structure
US2193424A (en) * 1937-05-06 1940-03-12 Logan Gear Company Lifting device
US2400235A (en) * 1945-01-22 1946-05-14 Walker Mfg Co Base structure for jacks

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2993660A (en) * 1959-05-13 1961-07-25 Bert H Parks Fishing reel
US3029065A (en) * 1960-01-15 1962-04-10 Buddingh Cornelius Means for moving vehicles
US3163925A (en) * 1961-12-01 1965-01-05 Universal Tool & Stamping Comp Method of forming a rigid steel rack bar for automobile jacks

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