US108738A - Improvement in wrenches - Google Patents
Improvement in wrenches Download PDFInfo
- Publication number
- US108738A US108738A US108738DA US108738A US 108738 A US108738 A US 108738A US 108738D A US108738D A US 108738DA US 108738 A US108738 A US 108738A
- Authority
- US
- United States
- Prior art keywords
- wrench
- wrenches
- improvement
- ratchet
- jaw
- 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 22
- 210000003813 Thumb Anatomy 0.000 description 4
- 238000010276 construction Methods 0.000 description 4
- 210000003811 Fingers 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
- B25B13/10—Spanners; Wrenches with adjustable jaws
- B25B13/12—Spanners; Wrenches with adjustable jaws the jaws being slidable
- B25B13/20—Arrangements for locking the jaws
- B25B13/22—Arrangements for locking the jaws by ratchet action or toothed bars
Definitions
- Figure 1 of the drawings is a plan View of my improved wrench.
- Fig. 2 is a horizontal section, and
- Fig. 3 is a cross-section, of the same.
- My invention relates to wrenches; and it consists in the construction of a ratchet-wrench with an adjustable spring-pawl fixed in the head and arranged to engage with the teeth of a ratchet formed on the under side of the movable jaw, thereby constituting a wrench of great strength and simplicity, capable of being operated, if necessary, with one hand.
- the letter A of the drawings designates the handle of the wrench, slotted at b.
- 0 represents the stationary jaw, slotted at (Z to receive the spring-pawl e, and at c to receive the ridge n of the movable jaw, which slides through it.
- D is the movable jaw, having a ratchet, 2
- a pin, 2 is fixed in the end of the ratchet-arm,designed to prevent it from being thrown entirely out of its slot.
- the general. shape of the head of the wrench is circular, and the handle is usually curved outward on the same side with the movable jaw, as specified.
- Serrated rosettes s are attached to the spring-pawl, and are arranged on each side of the stationary jaw to move in slots 12 therein, thus enabling the operator to disengage, with his thumb and finger, the spring-pawl from the ratchet.
- U the handle- is designed to enable the operator to work it with one hand. The thumb is thereby brought sufliciently near to enable it to push the movable jaw, in adjusting the wrench upon a nut or screw-head.
- the wrench herein described consisting of the handle A, stationary jaw O, sliding jaw D, having stop 2 and ratchet z, and springpawl e, operated by the serrated rosettes s s, as and for the purposes specified.
Description
- UNITED STATES PATENT OFFICE.
GEORGE O.'TAFT, OF WORCESTER, MASSACHUSETTS.
IMPROVEMENT IN WRENCH ES.
Specification fnrmingpart of Letters Paicnt No. l08,738, dated October 25, li ZO.
1" all whom, it may concern:
Be it known that I,.G. O. TAFT, ofNVorcester, in the county of WVoreester and State of Massachusetts, have invented a new and valuable Improvement in Wrenches; and I do hereby declare that the following is a full, clear, and exact description of the 'construction and operation of the same, reference beinghad to the annexed drawings, making a part of this specification, and to the letters and figures of reference marked thereon.
Figure 1 of the drawings is a plan View of my improved wrench. Fig. 2 is a horizontal section, and Fig. 3 is a cross-section, of the same. I
My invention relates to wrenches; and it consists in the construction of a ratchet-wrench with an adjustable spring-pawl fixed in the head and arranged to engage with the teeth of a ratchet formed on the under side of the movable jaw, thereby constituting a wrench of great strength and simplicity, capable of being operated, if necessary, with one hand.
The letter A of the drawings designates the handle of the wrench, slotted at b.
0 represents the stationary jaw, slotted at (Z to receive the spring-pawl e, and at c to receive the ridge n of the movable jaw, which slides through it.
D is the movable jaw, having a ratchet, 2,
formed on'its under side, the teeth whereof are inclined or beveled toward the stationary jaw in order that they will readily permit the movable jaw to be closed toward the former with but slight pressure. A pin, 2, is fixed in the end of the ratchet-arm,designed to prevent it from being thrown entirely out of its slot.
The general. shape of the head of the wrench is circular, and the handle is usually curved outward on the same side with the movable jaw, as specified. Serrated rosettes s are attached to the spring-pawl, and are arranged on each side of the stationary jaw to move in slots 12 therein, thus enabling the operator to disengage, with his thumb and finger, the spring-pawl from the ratchet. U the handle-is designed to enable the operator to work it with one hand. The thumb is thereby brought sufliciently near to enable it to push the movable jaw, in adjusting the wrench upon a nut or screw-head.
What I claim as my invention, and desire to secure by Letters Patent, is-
The wrench herein described, consisting of the handle A, stationary jaw O, sliding jaw D, having stop 2 and ratchet z, and springpawl e, operated by the serrated rosettes s s, as and for the purposes specified. I
In testimony that I claim the above I have hereunto subscribed my name in the presence of two witnesses.
. GEO. O. TATFIE- Witnesses:
GEo. OLTAFT, J12, E. N. TAFT.
The bend in
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US108738A true US108738A (en) | 1870-10-25 |
Family
ID=2178212
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US108738D Expired - Lifetime US108738A (en) | Improvement in wrenches |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US108738A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2500461A (en) * | 1947-06-25 | 1950-03-14 | Lazzarini Aldo | Claw-lever-and-rack-actuated parallel jaw wrench |
-
0
- US US108738D patent/US108738A/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2500461A (en) * | 1947-06-25 | 1950-03-14 | Lazzarini Aldo | Claw-lever-and-rack-actuated parallel jaw wrench |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US108738A (en) | Improvement in wrenches | |
| US87715A (en) | William h | |
| US98515A (en) | Robert morrison | |
| US65465A (en) | Joshua b | |
| US317738A (en) | crosby | |
| US110789A (en) | Improvement in wrenches | |
| US70923A (en) | Improvement in soeew-deivees | |
| US783468A (en) | Wrench. | |
| US102307A (en) | Improvement in wrenches | |
| US66177A (en) | secor | |
| US831130A (en) | Adjustable pipe-wrench. | |
| US100978A (en) | Improvement in wrenches | |
| US107539A (en) | Improvement in wrenches | |
| US109121A (en) | Improvement in vises | |
| US80622A (en) | Improvement in screw-drivers | |
| US79346A (en) | Peter c | |
| US81171A (en) | Peter n | |
| US763427A (en) | Pipe and nut wrench. | |
| US64121A (en) | Improved combination tool | |
| US13120A (en) | Weeitch | |
| US74615A (en) | Improvement in hammers | |
| US103705A (en) | Improvement in scissors-sharpener | |
| US592666A (en) | Monkey-wrench | |
| US117679A (en) | Improvement in wrenches | |
| US94261A (en) | Improvement in wrench |