US1204095A - Ratchet-wrench. - Google Patents

Ratchet-wrench. Download PDF

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Publication number
US1204095A
US1204095A US10841316A US10841316A US1204095A US 1204095 A US1204095 A US 1204095A US 10841316 A US10841316 A US 10841316A US 10841316 A US10841316 A US 10841316A US 1204095 A US1204095 A US 1204095A
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United States
Prior art keywords
pawl
ratchet
wrench
lever
handle
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
US10841316A
Inventor
Charles J Wallen
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Individual
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Individual
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.)
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Priority to US10841316A priority Critical patent/US1204095A/en
Application granted granted Critical
Publication of US1204095A publication Critical patent/US1204095A/en
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Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B13/00—Spanners; Wrenches
    • B25B13/46—Spanners; Wrenches of the ratchet type, for providing a free return stroke of the handle
    • B25B13/461—Spanners; Wrenches of the ratchet type, for providing a free return stroke of the handle with concentric driving and driven member
    • B25B13/467—Spanners; Wrenches of the ratchet type, for providing a free return stroke of the handle with concentric driving and driven member which are gear-operated

Definitions

  • This invention relates to an operating lever or handle adapted particularly for use in connection with the winding shafts of dump cars or the like, although capable of use on jacks and other power devices.
  • These articles are usually known as wrenches, and the object of the invention is to provide a safety device of the kind, by the use of which it is impossible for the operator to get hurt.
  • the invention is particularly directed to the means for holding the pawl of the lever engaged with the ratchet, and for releasing the same therefrom to permit the free turn of the ratchet wheel shaft, said means in the present embodiment comprising a locking lever by the operation of which the pawl is advanced or retracted.V
  • Figure 1 is a side elevation ofthe device.
  • Fig. 2 is a detail in elevation with a face plate removed, showing the pawl and its operating lever.
  • Fig. 3 is a detail in section showing a lug on the side of the lever, which acts to release the detent which normally engages the ratchet wheel Yon the shaft.
  • a handle is adapted to swing over the end of the lever 15 and lock the same with the pawl in advanced position, as shown in Fig. 1.
  • one side of the lever is a lug 18 projecting laterally in position to strike and lift the usual detent 20 which normally engages a ratchet 21 on the winding shaft indicated at 22.
  • the pawl is advanced by swinging in the lever 15 and locking the same to the handle by the latch 17, and in Vthis position the wrench may be swung around by the operator to turn the ratchet wheel and the shaft engaged thereby.
  • the latch 17 is released, and a spring 23, bearing under the lever 15, lifts the same and retracts the pawl from engagement with the ratchet, and the latter is then free to turn with the shaft.
  • the wrench is mounted on the shaft, as previously described, and operated as indicated, the lug 18 acts by contact with the detent 20 to lift the latter from engagement with the ratchet 21 thereby permitting the shaft to run free, without lifting the detent by handin the usual manner.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)

Description

0.1. WALLEN.
RATGHET WRENCH.
APPLICATION HLED1uLY10,19xe.
1,204,095. Patented Nov. 7,1916.
CHARLES J'. WALLEN, OF CLEVELAND, OHIO.
RATCHET-WRENCH.
Application filed. .uly l0, 1916.
To all whom t may cof/wcm.'
Be it known that 1, CHARLES J. WALLEN, a citizen of the United States, residing at Cleveland, in the county of Cuyahoga and State of Ohio, have invented certain new and useful improvements in Ratchet-Wrenches, of which the following is a specification.
This invention relates to an operating lever or handle adapted particularly for use in connection with the winding shafts of dump cars or the like, although capable of use on jacks and other power devices. These articles are usually known as wrenches, and the object of the invention is to provide a safety device of the kind, by the use of which it is impossible for the operator to get hurt.
The invention is particularly directed to the means for holding the pawl of the lever engaged with the ratchet, and for releasing the same therefrom to permit the free turn of the ratchet wheel shaft, said means in the present embodiment comprising a locking lever by the operation of which the pawl is advanced or retracted.V
In the accompanying drawings: Figure 1 is a side elevation ofthe device. Fig. 2 is a detail in elevation with a face plate removed, showing the pawl and its operating lever. Fig. 3 is a detail in section showing a lug on the side of the lever, which acts to release the detent which normally engages the ratchet wheel Yon the shaft.
Referring specifically to thev drawings, 6
indicates a squared opening in a ratchet wheel 7 mounted to turn 1n a head S of the lugs 12 and 13 vwhich are engaged by a lug let projecting from lever 15 which is pivoted at 16 in the'body of the wrench, and swings in or out to retract or advance the pawl. A loop or latch 17 is pivoted to the Specicaticn of Letters Patent.
Patented Nov. 1916.
serial No. 108,413.
handle and is adapted to swing over the end of the lever 15 and lock the same with the pawl in advanced position, as shown in Fig. 1. 0n one side of the lever is a lug 18 projecting laterally in position to strike and lift the usual detent 20 which normally engages a ratchet 21 on the winding shaft indicated at 22.
To lock the wrench to the winding shaft, for operating the latter, the pawl is advanced by swinging in the lever 15 and locking the same to the handle by the latch 17, and in Vthis position the wrench may be swung around by the operator to turn the ratchet wheel and the shaft engaged thereby. To release the wrench, and permit the shaft to run free, the latch 17 is released, and a spring 23, bearing under the lever 15, lifts the same and retracts the pawl from engagement with the ratchet, and the latter is then free to turn with the shaft.
l/Vhen the wrench is mounted on the shaft, as previously described, and operated as indicated, the lug 18 acts by contact with the detent 20 to lift the latter from engagement with the ratchet 21 thereby permitting the shaft to run free, without lifting the detent by handin the usual manner.
In either position, therefore, there is no possibility of accidental engagement or disengagement of the pawl with the ratchet wheel, which, in devices of this kind, is apt to work injury to the operator.
What I claim as new is:
1. The combination with a ratchet wheel, handle, and a sliding pawl carried by the handle and engageable with the wheel, of a lever pivoted on the handle, said pawl having a projection engaged by the lever to advance or retract the pawl.
2. The combination with a ratchet wheel and handle, of a sliding pawl carried by the handle and engageable with the wheel, said pawl having lugs, and an operating lever for the pawl, pivoted to the handle, and having a projection engaging between said lugs4 to advance or retract the pawl.
1n testimony whereof, I do affix my signature in presence of a. witness.
CHARLES J. WALLEN.
Witness:
JOHN A. BOMMHARDT.
Copies of this patent may be obtained for :ive cents each, by addressing the Commissioner of Patents, Washington, D. C.
US10841316A 1916-07-10 1916-07-10 Ratchet-wrench. Expired - Lifetime US1204095A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US10841316A US1204095A (en) 1916-07-10 1916-07-10 Ratchet-wrench.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US10841316A US1204095A (en) 1916-07-10 1916-07-10 Ratchet-wrench.

Publications (1)

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US1204095A true US1204095A (en) 1916-11-07

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US10841316A Expired - Lifetime US1204095A (en) 1916-07-10 1916-07-10 Ratchet-wrench.

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2704475A (en) * 1955-03-22 Lever operated box wrench with ratchet head
US2757564A (en) * 1955-06-13 1956-08-07 A C Reaves Broken circle ratchet wrench
US3413877A (en) * 1967-03-20 1968-12-03 Franklin J. Teichmeier Ratchet wrench

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2704475A (en) * 1955-03-22 Lever operated box wrench with ratchet head
US2757564A (en) * 1955-06-13 1956-08-07 A C Reaves Broken circle ratchet wrench
US3413877A (en) * 1967-03-20 1968-12-03 Franklin J. Teichmeier Ratchet wrench

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