US1074412A - Wrench. - Google Patents
Wrench. Download PDFInfo
- Publication number
- US1074412A US1074412A US69982912A US1912699829A US1074412A US 1074412 A US1074412 A US 1074412A US 69982912 A US69982912 A US 69982912A US 1912699829 A US1912699829 A US 1912699829A US 1074412 A US1074412 A US 1074412A
- Authority
- US
- United States
- Prior art keywords
- jaw
- lever
- wrench
- handle
- movable
- 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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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
- B25B7/00—Pliers; Other hand-held gripping tools with jaws on pivoted limbs; Details applicable generally to pivoted-limb hand tools
- B25B7/06—Joints
- B25B7/10—Joints with adjustable fulcrum
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)
Description
D. DAHLBERG.
- WRENCH.
APPLICATION TILED MAY 25, 1912.
1,074,412. Patented Spt. 30,1913.
UN irnn STATES PATENT onnion.
DANIEL IDAHLIBERG, OF BBAHAM, MINNESOTA, ASSIGNOR OF ONE- THIRD TO JOHN I CARLSON, OF BRAI-IAM, MINNESOTA. I
WRENCH.
Specification of Letters Patent.
Patented Sept. 30, 1913.
To all whom it may concern:
Be it known that I, DANIEL DAHLBERG, a subject of the King of Sweden, residing at Braham, in the county of Isanti and State of Minnesota, have invented certain new and useful Improvements in Wrenches, of which the following is a specification.
The primary object of this invention has been to devise a simple, compact and eX- ceedingly substantial form of wrench particularly adapted for use as a pipe wrench but susceptible of employment for the general uses to which wrenches are ordinarily put. a i
A wrench embodying the invention is especially advantageous by reason of the adjustability of the same to fit difi erent sized pipes and other work, and by reason of the ease with which thetool may be manipulated by one hand under practical conditions of service.
A further object of the invention has been to supply a wrench of the type above de scribed, in which the gripping action of the jaws is promoted by reason of a peculiar lever movement incidental to the operation of what will be termed hereinafter as a relatively movable jaw of the tool.
For a full understanding of the present invention, reference is to be had to the following description and to the accompanying drawings, in which- 7 Figure l is a side elevation of a wrench embodying the invention. Fig. 2 is a top plan view. Fig. 3 is a bottom plan view. Fig. 4 is a section on the line 4-4 of Fig. 1.
Throughout the following detail descrip tion and on the several figures of the drawings, similar parts are referred to'by like reference characters.
Briefly describing the specific construction of the tool of this invention, 1 denotes a handle, the intermediate portion of which is threaded at 2, one end of which forms a grip and the other end of which has an offstanding angular shaped arm 3 of somewhat L-form. A jaw 4 projects from the outer end of the arm 3 and terminates approximately in alinement with the handle 1. The
It is contemplated to provide the relatively stationary and movable jaws 4 and 5 respectively with detachable toothed plates 13 and 14 respectively. The plates 18 and 14 are applied to the working surfaces of the jaws 4 and 5 and are provided for the usual purpose of promoting the gripping action of said jaws in the use of the tool.
It will be apparent from the foregoing that in adjusting the jaw 5, the sleeve or nut 10 is turned and adapted when moving in one direction to positively cause a relative closing movement of the jaws 4 and 5. By movement of the member 10 in an opposite direction, thereby ,spacing it from the member 11, since the tubular part 11 of the member 11 is loose on the handle 1, the jaw 5 is freely movable by the lever 6 in a direction away from the jaw 4. By reason of the fulcruming action of the lever 6, a slight movement of the jaw 5 is per;
therj aw 5 in respect to the jaw 4.
The adjusting member 11 is of hollow formation, being open at its inner side so as to receive the inner end of the arm 3. By reason of the peculiar formation of the member 11 it is apparent that it surrounds the space between the jaw 5 and the inner terminal of said arm 3 and prevents the lodgment of any obstruction in said space, whereby the free movement of the jaw 5 along the part 3 might be interfered with. To this extent the adjusting member 11 constitutes a guard. Adjacent to the cars 11 the member 11 is formed with a shoulder 11*, which shoulder is adapted to impinge against the jaw 5 to limit the outward movement of the lever (3 away from the handle 1.
Having thus described my invention, what I claim as new is:
A wrench comprising a shank having a handle at one end and terminating at its other end in a relatively stationary U-shapcd jaw member, said member having a slot extending longitudinally thereof, a relatively movable lever passing through said slot and formed with a jaw movable between the sides of the first mentioned jaw member, an
adjusting member having pivot ears at one end and of hollow form and open only on the side thereof adjacent to thejaw member so as to receive a side portion'of the latter and constituting a guard surrounding the space betweenthe relatively movable jaw and the inner side of said U-shaped jaw member, a pivotal connection between the ears at one end of the said adjusting member and the movable jaw, and adjustable means mounted on the shank interme diate its ends and cooperating with the other end of said adjusting member, said adjusting member being formed with a shoulder adjacent to the ears above mentioned and which shoulder is adapted toimpinge against the inner side of the mov able jaw to thereby limit the outward swinging movement of the lever in respect to said shank, and guide members connected with the lever adjacent to its jaw and movable along the U-shaped jaw member, for the purpose described.
Intestimony whereof I affix my signature in presence of two witnesses.
I DANIEL DAHLBERG.
lVitnesses i P. J. ENGLING, ELLA HARRIS.
Copies of this patent may be'obtained for five cents each, by addressing the Commissioner of Patents.
Washington, D. O.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US69982912A US1074412A (en) | 1912-05-25 | 1912-05-25 | Wrench. |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US69982912A US1074412A (en) | 1912-05-25 | 1912-05-25 | Wrench. |
Publications (1)
Publication Number | Publication Date |
---|---|
US1074412A true US1074412A (en) | 1913-09-30 |
Family
ID=3142643
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US69982912A Expired - Lifetime US1074412A (en) | 1912-05-25 | 1912-05-25 | Wrench. |
Country Status (1)
Country | Link |
---|---|
US (1) | US1074412A (en) |
-
1912
- 1912-05-25 US US69982912A patent/US1074412A/en not_active Expired - Lifetime
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