US988691A - Wrench. - Google Patents

Wrench. Download PDF

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Publication number
US988691A
US988691A US56789810A US1910567898A US988691A US 988691 A US988691 A US 988691A US 56789810 A US56789810 A US 56789810A US 1910567898 A US1910567898 A US 1910567898A US 988691 A US988691 A US 988691A
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United States
Prior art keywords
wrench
nut
jaw
guide piece
spring
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
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US56789810A
Inventor
Gustav Brodhagen
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Individual
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Individual
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Filing date
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Priority to US56789810A priority Critical patent/US988691A/en
Application granted granted Critical
Publication of US988691A publication Critical patent/US988691A/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
    • B25B13/10—Spanners; Wrenches with adjustable jaws
    • B25B13/12—Spanners; Wrenches with adjustable jaws the jaws being slidable

Definitions

  • This invention relates to an improved wrench which is constructed so that it grips the nut the stronger the more often it is lifted and lowered.
  • W'ith wrenches of known construction in which a nut is used for regulating the position of the adjustable jaw with regard to the fixed jaw, said nut gets loose when the wrench is employed. This inconvenience is absolutely obviated by the present invention.
  • Figure 1 shows the wrench gripping a nut, the several parts being represented in the positions which they assume when the wrench is at rest;
  • Fig. 2 is a similar view showing the various parts of the wrench in operative position.
  • the nut 0 is to be gripped in the well known manner by the jaws a and b.
  • the upper jaw a has a threaded shaft d which can be lifted or lowered by means of the nut e mounted in the fixed bracket f.
  • Said bracket f has slots 9 in which pins 2' of the lower jaw b are guided.
  • the improved wrench operates as foldrawings the imlows :For turning the nut c the wrench is applied in the well known manner (Fig. 1).
  • the handle m is gripped by the hand and depressed whereby the lower jaw b which forms a spring slide is strongly pressed against the nut c.
  • the jaws of the wrench grip the nut the stronger the greater the pressure exerted upon the handle m. If the pressure upon the handle m ceases the spring a pushes the movable lower jaw away from the nut c.
  • An improved wrench comprising in combination a guide piece having vertical borings for the jaws, and longitudinal slots in its walls, the fixed or upper jaw adjustably mounted in one of said borings, a nut revolubly mounted in said boring and upon the threaded shaft of said fixed jaw, the movable jaw located in said second boring, pins of said movable jaw engaging with said longitudinal slots in the walls of the guide piece, a spring located in said guide piece and maintaining the movable jaw in lowered position, and a hand lever pivotally mounted in the lower end of said guide piece so that its upper end bears against said movable jaw, substantially as described and shown and for the purpose set forth.

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

Description

G. BRODHAGEN. WRENCH. APPLICATION FILED JUNE 2 0, 1010.
988,691 Patented Apr. 4, 1911.
Tu: NBRRIJ Plrxns cm, was! In GUSTAV BRODHAGEN, 0F NEUHAUS, GERMANY.
WRENCH.
Specification of Letters Patent.
Patented Apr. 4, 1911.
Application filed June 20, 1910. Serial No. 567,898.
To all whom it may concern:
Be it known that I, GUSTAV BRODHAGEN, a subject of the King of Prussia, residing at Neuhaus, Germany, have invented certain new and useful Improvements in Wrenches, of which the following is a specification.
This invention relates to an improved wrench which is constructed so that it grips the nut the stronger the more often it is lifted and lowered. W'ith wrenches of known construction in which a nut is used for regulating the position of the adjustable jaw with regard to the fixed jaw, said nut gets loose when the wrench is employed. This inconvenience is absolutely obviated by the present invention.
In the accompanying proved wrench is shown.
Figure 1 shows the wrench gripping a nut, the several parts being represented in the positions which they assume when the wrench is at rest; Fig. 2 is a similar view showing the various parts of the wrench in operative position.
The nut 0 is to be gripped in the well known manner by the jaws a and b. The upper jaw a has a threaded shaft d which can be lifted or lowered by means of the nut e mounted in the fixed bracket f. Said bracket f has slots 9 in which pins 2' of the lower jaw b are guided.
in is the pivot of the hand lever and 'n is a spring which continuously pushes the lower jaw away from the upper jaw.
The improved wrench operates as foldrawings the imlows :For turning the nut c the wrench is applied in the well known manner (Fig. 1). The handle m is gripped by the hand and depressed whereby the lower jaw b which forms a spring slide is strongly pressed against the nut c. The jaws of the wrench grip the nut the stronger the greater the pressure exerted upon the handle m. If the pressure upon the handle m ceases the spring a pushes the movable lower jaw away from the nut c.
I claim An improved wrench comprising in combination a guide piece having vertical borings for the jaws, and longitudinal slots in its walls, the fixed or upper jaw adjustably mounted in one of said borings, a nut revolubly mounted in said boring and upon the threaded shaft of said fixed jaw, the movable jaw located in said second boring, pins of said movable jaw engaging with said longitudinal slots in the walls of the guide piece, a spring located in said guide piece and maintaining the movable jaw in lowered position, and a hand lever pivotally mounted in the lower end of said guide piece so that its upper end bears against said movable jaw, substantially as described and shown and for the purpose set forth.
In witness whereof I have hereunto set my hand in the presence of two witnesses.
GUSTAV BRODI-IAGEN.
WVitnesses:
I-IoRs'r Hmen, WVILLY Luenr.
Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents. Washington, D. 0.
US56789810A 1910-06-20 1910-06-20 Wrench. Expired - Lifetime US988691A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US56789810A US988691A (en) 1910-06-20 1910-06-20 Wrench.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US56789810A US988691A (en) 1910-06-20 1910-06-20 Wrench.

Publications (1)

Publication Number Publication Date
US988691A true US988691A (en) 1911-04-04

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US56789810A Expired - Lifetime US988691A (en) 1910-06-20 1910-06-20 Wrench.

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3015245A (en) * 1960-01-27 1962-01-02 Port Clinton Mfg Company Handle-lever grip, slidable jaw wrench

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3015245A (en) * 1960-01-27 1962-01-02 Port Clinton Mfg Company Handle-lever grip, slidable jaw wrench

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