US1352884A - Adjustable lifting mechanism - Google Patents

Adjustable lifting mechanism Download PDF

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Publication number
US1352884A
US1352884A US326912A US32691219A US1352884A US 1352884 A US1352884 A US 1352884A US 326912 A US326912 A US 326912A US 32691219 A US32691219 A US 32691219A US 1352884 A US1352884 A US 1352884A
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United States
Prior art keywords
standard
sheave
lifting mechanism
adjustable
adjustable lifting
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Expired - Lifetime
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US326912A
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Elmer E Emory
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Individual
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Priority to US326912A priority Critical patent/US1352884A/en
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    • 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
    • B66F3/00—Devices, e.g. jacks, adapted for uninterrupted lifting of loads
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
    • B66D1/00—Rope, cable, or chain winding mechanisms; Capstans
    • B66D1/02—Driving gear
    • B66D1/04—Driving gear manually operated
    • B66D1/06—Safety cranks for preventing unwanted crank rotation and subsequent lowering of the loads
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
    • B66D3/00—Portable or mobile lifting or hauling appliances
    • B66D3/04—Pulley blocks or like devices in which force is applied to a rope, cable, or chain which passes over one or more pulleys, e.g. to obtain mechanical advantage

Definitions

  • the invention is of great utilityin connection with the" lifting and replacement of mine cars or of any similar work having in view the provision of a substantially adjustable supporting or foundation, frame, togetherw-ith the attached parts in the manner above described.
  • V Lifting mechanism consisting of a vertical two-part supporting standard, an in tervening vertically adjustable standard coacting therewith provided with a lower sheave wheel, an upper winding crank mounted on the two-part supporting stan dards, a supplemental supporting and guid-,
  • a verticallyadjustable [frameworkcomposed of outer standards. and. r a ver'ftlcally ad ustable inner standard, guid- 1 mg means therefor, a winding shaft provided witha crank anda locking ratchet mounted on the outer standards, a sheave wheel connected with the upper portion of the outer standard, a sheave wheel in, the lower portion of the adjustable innerstandard, and acable connected withthe winding shaft and trained around said sheave wheels provided with a terminal sheave and ,alifting hook;
  • a vertically ustable framework composed of outer standards and a vertically adjustable inner'standard, guiding means therefor, :a winding shaft provided with a. c'ran'k and a lockinglratchet mounted on. the outer. standards, a sheave wheel connected Wlth' the upper portion of outer standard, a sheave wheel 1n the lower portion of the, adjustable inner standard, a cable connected wlth the wlnding shaft and trained around said sheave wheels provided with a terminal sheaveanda lift- .ing hook, a supporting toothedratchet bar mountedon one of the outer standards, and

Description

' E. E. EMORY; ADJUSTABLE LIATING MECHANISM.
APPLICATION FILED SEPT.27. 1919.
Patented Sept. 14,1920.
Wines-sea;
an fnvenihr:
lifted and replaced on the track, upon,the framework may be collapsed and removed to another point of operation, or laid aside until needed.
The construction of the device iscompar'atively simple, composed of few parts, and
it is easily and cheaply made. It is selfcontained and provides for an ample range of movement both as to the adjustable member?) andthe movement of the lifting sheave 11 "and its hook 10., These" parts maybe thrust inwardly or, outwardly from the vertical positionto any'desired degree, and in this manner-the dev1ce 1S capable of appli- CELtIOH tO the work 1n vlew within a wide range of operation. v
The invention is of great utilityin connection with the" lifting and replacement of mine cars or of any similar work having in view the provision of a substantially adjustable supporting or foundation, frame, togetherw-ith the attached parts in the manner above described.
scribed consisting of a pair of outer parallel standards spaced apart and having at top and bottom cross connecting guiding braces, an intervening relatively movable standard having a sheave wheel at its lower portion,
a -sheave wheel having a supporting clevis secured to the upper cross brace, a winding shaft mounted -1I1 hearings on the outer standards, a cable wound thereon, passing around the lowersand upper sheave wheels and secured to the clevis' with adepending loop, and a lifting sheave having ahook mounted in said loop. V 2. Lifting mechanism consisting of a vertical two-part supporting standard, an in tervening vertically adjustable standard coacting therewith provided with a lower sheave wheel, an upper winding crank mounted on the two-part supporting stan dards, a supplemental supporting and guid-,
ing sheaveand mechanism connecting it to the upper portion of the supporting standard, and a tension exerting cable connected with the winding shaftandpassed around zssaid lower and upper, sheaves,-andprovided' r with a terminal lifting device; V
- In combination, a verticallyadjustable [frameworkcomposed of outer standards. and. r a ver'ftlcally ad ustable inner standard, guid- 1 mg means therefor, a winding shaft provided witha crank anda locking ratchet mounted on the outer standards, a sheave wheel connected with the upper portion of the outer standard, a sheave wheel in, the lower portion of the adjustable innerstandard, and acable connected withthe winding shaft and trained around said sheave wheels provided with a terminal sheave and ,alifting hook; I I
i 4. In, combination, a vertically ustable framework composed of outer standards and a vertically adjustable inner'standard, guiding means therefor, :a winding shaft provided with a. c'ran'k and a lockinglratchet mounted on. the outer. standards, a sheave wheel connected Wlth' the upper portion of outer standard, a sheave wheel 1n the lower portion of the, adjustable inner standard, a cable connected wlth the wlnding shaft and trained around said sheave wheels provided with a terminal sheaveanda lift- .ing hook, a supporting toothedratchet bar mountedon one of the outer standards, and
locking ratchet therefor; mounted on the vertically adjustable standard.
Ila-testimony whereof ;I hereunto affix my signature.
ELMEVRIE. EMORY. f
US326912A 1919-09-27 1919-09-27 Adjustable lifting mechanism Expired - Lifetime US1352884A (en)

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US326912A US1352884A (en) 1919-09-27 1919-09-27 Adjustable lifting mechanism

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US326912A US1352884A (en) 1919-09-27 1919-09-27 Adjustable lifting mechanism

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US1352884A true US1352884A (en) 1920-09-14

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2622924A (en) * 1949-10-17 1952-12-23 Contractors Machinery Company Hoist for vehicle dump bodies

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2622924A (en) * 1949-10-17 1952-12-23 Contractors Machinery Company Hoist for vehicle dump bodies

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