US784151A - Wrench. - Google Patents

Wrench. Download PDF

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Publication number
US784151A
US784151A US20879504A US1904208795A US784151A US 784151 A US784151 A US 784151A US 20879504 A US20879504 A US 20879504A US 1904208795 A US1904208795 A US 1904208795A US 784151 A US784151 A US 784151A
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US
United States
Prior art keywords
jaws
wrench
shield
jaw
dog
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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
US20879504A
Inventor
William E Gilchrist
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
EDWIN M ST JOHN
Original Assignee
EDWIN M ST JOHN
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.)
Filing date
Publication date
Application filed by EDWIN M ST JOHN filed Critical EDWIN M ST JOHN
Priority to US20879504A priority Critical patent/US784151A/en
Application granted granted Critical
Publication of US784151A publication Critical patent/US784151A/en
Anticipated expiration legal-status Critical
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

Definitions

  • VllLLIAM E. GILCHRIST, OF ROCKFORD, ILLINOIS, ASSIG-NOR OF ONE- HALF TO EDVVTN M. ST. JOHN, OF ROCKFORD, ILLINOIS.
  • the object of this invention is to construct a wrench composed of two jaws pivotally connected and apivoted dog carried by a swing ing yoke.
  • the further object of this invention is to provide a shield secured to one of the jaws and covering the space between the jaws.
  • the further object of this invention is to form a recess in the meeting faces of the jaws and locating a spring in said recess having its ends resting against the meeting faces of the jaws, thereby serving to hold them open.
  • Figure 1 is a face representation of my improved wrench in which the jaws are closed.
  • Fig. 2 is a similar view in which the jaws are practically open.
  • Fig. 3 is a top edge view.
  • the lower jaw 1 is made of plate material and has a shield connected thereto.
  • This shield 2 is formed of a single piece of material and receives the lower edge and sides of the lower jaw.
  • the upper jaw has a pivotal connection with the shield 2 at the point l and is received and guided by the shield.
  • the upper edge of the upper jaw is provided with a series of sawteeth 5, and the lower edge of the free end of the upper jaw is provided with a series ofsaw-teeth 6.
  • To the lower jaw are pivoted two links 7 and 8, one located each side of the jaw and connected thereto by the rivet 9. These links receive the upper jaw between them and their free ends support a dog 10 in a pivotal manner.
  • This dog has a series of sawteeth 11 in its lower face.
  • the meeting faces of the jaws are formed with semicircular recesses 12 and cut-away portions 13.
  • a spring has its central coil 14: located in the recesses and its free ends 15 located in the cut away portions.
  • the pivoted dog provided with the series of teeth it will readily adapt itself to the teeth formed in the upper face of the upper jaw in whatever position the dog may be.
  • the pivoted dog with its several teeth will insure a good connection with the upper jaw.
  • the shield forms the handle or that portion grasped by the hand when in use, which being in close proximity to the dog it can be adjusted by the same hand.
  • a wrench comprising two jaws of substantially a uniform thickness throughout, a separate shield permanently connected to one of the jaws and embracing both faces of the other jaw.
  • a wrench comprising two jaws of substantially a uniform thickness throughout, a separate shield permanently connected to one of the jaws and em bracing the edge of the jaw to which it is connected and both sides of both jaws.
  • a wrench comprising two jaws of substantially a uniform thickness throughout, a separate shield permanently connected to one of the jaws and adapted to receive both jaws and having a pivotal con nection with the other "WILLIAM E. (:iilLOlllillS'l. witnesseses:

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

Description

No. 784,151. PATENTEI) MAR. 7, 1905. W. E. GILGHRIST.
WRENCH.
APPLICATION FILED MAY 20. 1904.
STATES Patented March '7, 1905.
VllLLIAM E. GILCHRIST, OF ROCKFORD, ILLINOIS, ASSIG-NOR OF ONE- HALF TO EDVVTN M. ST. JOHN, OF ROCKFORD, ILLINOIS.
WRENCH.
SPECIFICATION forming part of Letters Patent No. 784L151, dated March 7, 1905.
Application filed May 20, 1904. Serial No. 208,796.
I!) (bid mil/0712, it may concern:
Be it known that I, WILLIAM E. GILoHnIs'r, a
. citizen of the United States, residing at Rockford, in the county of Winnebago and State of Illinois, have invented certain new and useful improvements in Wrenches, of which the following is a specification.
The object of this invention is to construct a wrench composed of two jaws pivotally connected and apivoted dog carried by a swing ing yoke.
The further object of this invention is to provide a shield secured to one of the jaws and covering the space between the jaws.
The further object of this invention is to form a recess in the meeting faces of the jaws and locating a spring in said recess having its ends resting against the meeting faces of the jaws, thereby serving to hold them open.
:ln the accompanying drawings, Figure 1 is a face representation of my improved wrench in which the jaws are closed. Fig. 2 is a similar view in which the jaws are practically open. Fig. 3 is a top edge view.
The lower jaw 1 is made of plate material and has a shield connected thereto. This shield 2 is formed of a single piece of material and receives the lower edge and sides of the lower jaw. The upper jaw has a pivotal connection with the shield 2 at the point l and is received and guided by the shield. The upper edge of the upper jaw is provided with a series of sawteeth 5, and the lower edge of the free end of the upper jaw is provided with a series ofsaw-teeth 6. To the lower jaw are pivoted two links 7 and 8, one located each side of the jaw and connected thereto by the rivet 9. These links receive the upper jaw between them and their free ends support a dog 10 in a pivotal manner. This dog has a series of sawteeth 11 in its lower face. The meeting faces of the jaws are formed with semicircular recesses 12 and cut-away portions 13. A spring has its central coil 14: located in the recesses and its free ends 15 located in the cut away portions. With the parts in the positions shown in the drawings the shield will serve to hold the jaws in proper alinement, also to protect the hand of the user from injury by being pinched between the jaws, and will also hold the spring from displacement.
By the employment of the pivoted dog provided with the series of teeth it will readily adapt itself to the teeth formed in the upper face of the upper jaw in whatever position the dog may be. The pivoted dog with its several teeth will insure a good connection with the upper jaw.
By this arrangement the hand of the user is protected against injury and the jaws quickly adjusted and a strong construction in compact form produced.
It is evident that the shield forms the handle or that portion grasped by the hand when in use, which being in close proximity to the dog it can be adjusted by the same hand.
1 claim as my invention 1. A wrench comprising two jaws of substantially a uniform thickness throughout, a separate shield permanently connected to one of the jaws and embracing both faces of the other jaw.
:2. A wrench comprising two jaws of substantially a uniform thickness throughout, a separate shield permanently connected to one of the jaws and em bracing the edge of the jaw to which it is connected and both sides of both jaws.
3. A wrench comprising two jaws of substantially a uniform thickness throughout, a separate shield permanently connected to one of the jaws and adapted to receive both jaws and having a pivotal con nection with the other "WILLIAM E. (:iilLOlllillS'l. Witnesses:
A. O. BnnnL, 1G. Pinnin
US20879504A 1904-05-20 1904-05-20 Wrench. Expired - Lifetime US784151A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US20879504A US784151A (en) 1904-05-20 1904-05-20 Wrench.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US20879504A US784151A (en) 1904-05-20 1904-05-20 Wrench.

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US784151A true US784151A (en) 1905-03-07

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US20879504A Expired - Lifetime US784151A (en) 1904-05-20 1904-05-20 Wrench.

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2484492A (en) * 1946-08-12 1949-10-11 Sheldon J Morris Segmental box-type wrench with pivoted levers

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2484492A (en) * 1946-08-12 1949-10-11 Sheldon J Morris Segmental box-type wrench with pivoted levers

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