US253089A - Wrench - Google Patents
Wrench Download PDFInfo
- Publication number
- US253089A US253089A US253089DA US253089A US 253089 A US253089 A US 253089A US 253089D A US253089D A US 253089DA US 253089 A US253089 A US 253089A
- Authority
- US
- United States
- Prior art keywords
- lever
- pin
- wrench
- fulcrum
- slots
- 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
Links
- 210000001847 Jaw Anatomy 0.000 description 10
- 238000010276 construction Methods 0.000 description 8
- 230000014759 maintenance of location Effects 0.000 description 2
- 210000004873 upper jaw Anatomy 0.000 description 2
Images
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
- B25B13/48—Spanners; Wrenches for special purposes
- B25B13/50—Spanners; Wrenches for special purposes for operating on work of special profile, e.g. pipes
- B25B13/5008—Spanners; Wrenches for special purposes for operating on work of special profile, e.g. pipes for operating on pipes or cylindrical objects
- B25B13/5016—Spanners; Wrenches for special purposes for operating on work of special profile, e.g. pipes for operating on pipes or cylindrical objects by externally gripping the pipe
- B25B13/5025—Spanners; Wrenches for special purposes for operating on work of special profile, e.g. pipes for operating on pipes or cylindrical objects by externally gripping the pipe using a pipe wrench type tool
- B25B13/5041—Spanners; Wrenches for special purposes for operating on work of special profile, e.g. pipes for operating on pipes or cylindrical objects by externally gripping the pipe using a pipe wrench type tool with movable or adjustable jaws
- B25B13/505—Pivotally moving or adjustable
Definitions
- My invention relates to an improvement in wrenches; and it consists in certain details in construction and combinations of parts, as will be more fully explained, and pointed out in the claims.
- Figure 1 is a perspective view of my improved wrench
- Fig. 2 is a side view, partly in section.
- A represents the lever, provided at its lower end with the handle B, and at its upper end with the convexjaw O,which latter is of greater width than the remaining portion of the lever, so as to present an enlarged bearing-surface of the pipe or bolt being operated on, and also to form a stop or limit of the upward movementof the niovablejaw D.
- This levcrA is also provided with any desired number of slots E, which latter are situated on the front edge thereof, and instead of being in the shape of half-circle, as generally made, they are formed at about two-thirds of a circle,and are adapted for the reception and retention of the fulcrumpin G, of the same form.
- the movablejaw D is provided at its lower end with the arms F, which latter are adapted to embrace the lever Aaud be secured thereon by the fulcrum-pin G, which latter is made in the shape of a two thirds circle and of the same size as the slots E in the lever A, but capable of being forced out of said slots.
- the movable or upper jaw is connected to the lever A, as above described,
- This slidingjaw D is also provided with the fiat spring H, which latter is secured to the back of the movable jaw, and is adapted to bear and slide on the back edge of lever A.
- This spring H is provided with the ears or keeper 1) to hold it in proper position on the lever.
- the movable jaw D is constantly kept in working position, and is not allowed to swing independently on its fulcrum, while the peculiar construction of the fulcrum-pin and slots renders it impossible for the fulcrum-pin to become accidentally disengaged from the slot.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Quick-Acting Or Multi-Walled Pipe Joints (AREA)
Description
(No Model.)
W. OOONNELL, Jr
WRENCH.
Patented Jan. 31,1882.
INVENTOR.
WITNESSES Y E N R O T T A Uwrrao STATES PATENT Caries;
WILLIAM OCONNELL, JR, OF PITTSFIELD, MASSACHUSETTS.
WRENCH.
SPECIFICATION forming part of Letters Patent No. 253,089, dated January 31, 1882.
Application filed December 13, 1881. (No model.)
To all whom it may concern:
Be it known that 1, WILLIAM OCONNELL, Jr., of Pittsfield, in the county of Berkshire and State of Massachusetts, have invented certain new and useful Improvements in Wrenches; and I do hereby declare the following. to be a lull, clear, and exact description of the inven tion, such as will enable others skilled in the art to which it pertains to make and use the same.
My invention relates to an improvement in wrenches; and it consists in certain details in construction and combinations of parts, as will be more fully explained, and pointed out in the claims.
In the accompanying drawings, Figure 1 is a perspective view of my improved wrench, and Fig. 2 is a side view, partly in section.
A represents the lever, provided at its lower end with the handle B, and at its upper end with the convexjaw O,which latter is of greater width than the remaining portion of the lever, so as to present an enlarged bearing-surface of the pipe or bolt being operated on, and also to form a stop or limit of the upward movementof the niovablejaw D. This levcrAis also provided with any desired number of slots E, which latter are situated on the front edge thereof, and instead of being in the shape of half-circle, as generally made, they are formed at about two-thirds of a circle,and are adapted for the reception and retention of the fulcrumpin G, of the same form. The movablejaw D is provided at its lower end with the arms F, which latter are adapted to embrace the lever Aaud be secured thereon by the fulcrum-pin G, which latter is made in the shape of a two thirds circle and of the same size as the slots E in the lever A, but capable of being forced out of said slots. The movable or upper jaw is connected to the lever A, as above described,
vand instead of the biting portion thereof being concave to conform to the convex stationary jaw C, it is formed angular, as shown in the drawings, so as to grasp the pipe or bolt at three distinct points, instead of at the center, which prevents the crushing of the pipe when more than ordinary force is required to be exerted thereon. This slidingjaw D is also provided with the fiat spring H, which latter is secured to the back of the movable jaw, and is adapted to bear and slide on the back edge of lever A. This spring H is provided with the ears or keeper 1) to hold it in proper position on the lever.
In order to adjust thewrench it is simply necessary to force the upper end of the movable jaw D upward from thelever A, and at the same time exert sufficient downward pressure on the lower end of the same to force the fulcrum-pin out of the notch in the lever when the smallest diameter of said pin is turned opposite the opening of the slots. When the pin G has been withdrawn from the slot in the lever the movable arm D is free to bemoved up or down until the proper position has been reached, when by releasing the said arm D the pin will be forced into the adjacent slot.
By means of myimprovements the movable jaw D is constantly kept in working position, and is not allowed to swing independently on its fulcrum, while the peculiar construction of the fulcrum-pin and slots renders it impossible for the fulcrum-pin to become accidentally disengaged from the slot.
It is evident that slight changes in the con struction of the different parts might be resorted to without departing from the spirit of my invention, and hence I would have it understood that I do not limit myself to the exact construction of parts shown and described, but consider myself at liberty to make such changes as come within the spirit and scope of my invention.
Having fully described my invention, what I claim as new, and desire to secure by Letters Patent, is-
1. The combination, with the lever A, projaw D, provided with the arms F, adapted to specification in the presence of two subscribembrace the lever, the fulcrum-pin G, coning witnesses. structed to be inserted and turned within said slots, and thus locked therein, and the spring 5 H, secured at one end to the jaw D, while its Witnesses:
opposite end bears upon the lever A, substan- JOHN OGONNELL, tially as set forth. WM. GOSMAN TROITER.
In testimony whereof I haye signed this WM. OOONNELL, JR,
Publications (1)
Publication Number | Publication Date |
---|---|
US253089A true US253089A (en) | 1882-01-31 |
Family
ID=2322387
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US253089D Expired - Lifetime US253089A (en) | Wrench |
Country Status (1)
Country | Link |
---|---|
US (1) | US253089A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2459491A (en) * | 1946-04-02 | 1949-01-18 | Gerard A Thompson | Wire bound box closing tool |
US20090281508A1 (en) * | 2008-05-07 | 2009-11-12 | Joseph Alvino | Combination eye cup and drop dispenser |
-
0
- US US253089D patent/US253089A/en not_active Expired - Lifetime
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2459491A (en) * | 1946-04-02 | 1949-01-18 | Gerard A Thompson | Wire bound box closing tool |
US20090281508A1 (en) * | 2008-05-07 | 2009-11-12 | Joseph Alvino | Combination eye cup and drop dispenser |
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