US1389487A - Adjustable wrench - Google Patents

Adjustable wrench Download PDF

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Publication number
US1389487A
US1389487A US399247A US39924720A US1389487A US 1389487 A US1389487 A US 1389487A US 399247 A US399247 A US 399247A US 39924720 A US39924720 A US 39924720A US 1389487 A US1389487 A US 1389487A
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United States
Prior art keywords
jaw
wedge
movable
adjustable wrench
pressure
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
Application number
US399247A
Inventor
Cassel Gunnar Elias
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.)
ARTHUR LEFFLER
Original Assignee
ARTHUR LEFFLER
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 ARTHUR LEFFLER filed Critical ARTHUR LEFFLER
Priority to US399247A priority Critical patent/US1389487A/en
Application granted granted Critical
Publication of US1389487A publication Critical patent/US1389487A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • 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
    • B25B13/24—Arrangements for locking the jaws by cam, wedge, or friction means

Definitions

  • This invention relates to adjustable wrenches of the type in which one jaw movable on a prismatic guide is secured to the main body of the wrench by frictional engagement.
  • the object of the invention is to provide a device of this kind afl'ording complete security against sliding motion of the movable jaw independently of the pressure exerted and without necessitating any appreciable relative movement of the members for securing the movable jaw, it being possible to release said movable jaw, for adjusting the same in relation to the other stationary jaw, with a slight development of power.
  • the invention consists, chiefly, in that the movable jaw is adapted to be secured to said prismatic guide by means of a clamping wedge so arranged as to beselflocking by a pressure actuating the movable jaw and tending to increase the distance between the stationary jaw and the movable one, the said wedge being self-releasing or adapted to be released by a slight power, when the pressure acts in opposite direction or if a pressure be applied directly to the wedge in the direction away from its edge.
  • Figure 1 is a side View partly in sectlon of an adjustable wrench constructed according to the invention.
  • Fig. 2 is a section on line A-B in Fig. 1
  • Fig. 3 is a deta1l view of the releasing mechanism.
  • the wrench shown in the drawing is of the type the main body of which consists of a shank 1 whose one end is enlarged so as to form a head 2 carrying the stationary jaw 3 and provided with a prismatic guide 13 disposed obliquely in relation to the longitudinal direction of the shank and on which the other jaw 4 is movable lengthwise.
  • a clamping wedge (3 is located in a recess 5 made in the head 2 below the jaw 4, the wedge being provided Specification of Letters Patent.
  • the wedge On the opposite side the wedge has a plane surface 9 divided into two steps and engaging a corresponding plane sur face 10 of a member 11 secured to the bottom of recess 5.
  • the step formed surface 9 of the wedge facilitates the arrangement of a spring 14 placed between the wedge and the member 11 and tending to keep the wedge in constant contact with the lower side of the jaw 41: and the surface 10 of the member 11.
  • a small push-plate 12 Secured to the outer reduced end of the wedge 6 is a small push-plate 12 by means of which the wedge may be moved inwardly and thus be released, the jaw 4 thereby being capable of being adjusted to the desired position in relation to the stationary jaw.
  • the spring returns the wedge into engagement withthe wedge formed notch of the jaw d and the surface 10.
  • the angle of the wedge is so adjusted that the pressure of the spring can keep the jaw in the adjusted position without necessitating any great power for the release of the jaw.
  • An adjustable wrench comprising in combination a shank, a rigid jaw integral with said shank, said rigid jaw being formed with an oblique guideway, a movable jaw having a wedge-shaped recess and mounted to slide in said oblique guideway, a member rigidly attached to the rigid jaw and having a step formed surface inclined relatively to the direction of said guide-way, a movable wedge having a step formed contact surface bearing against said first-mentioned step formed surface, said wedge further on gagin the wedge-shaped recess.
  • adjustable wrench comprising in combination a shank, a rigid jaw integral with said shank and formed with an oblique guide-Way, a movable jaw having a Wedgeshaped recess and mounted to slide in said oblique guide-way, a member rigidly at teched to the rigid jaw and having a step formed surface inclined relatively to the direction of said guide-Way, a spring-operated movable Wedge having a step formed contact surface bearing against said first mentioned step formed surface, said Wedge further engaging the wedge-shaped recess.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Clamps And Clips (AREA)

Description

' G. E. CASSEL.
ADJUSTABLE WRENCH.
APPLICATION FILED JULY 21. 1920.
1 89,487. Patented Aug. 30, 1921.
UNITED STATES PATENT FFIQE.
GUNNAR ELIAS CASSEL, OF STOGKHOLM', SWEDEN, ASSIGNOR TO ARTHUR LEFFLER,
' OF DJ'UBSHOLM, SWEDEN. 1
ADJUSTABLE WRENCI-I.
Application filed July 27,
To all whom it may concern Be it known that I, GUNNAR ELIAs Gasser, a citizen of the Kingdom of Sweden, residing at Stockholm, Sweden, have invented new and useful Improvements in Adjustable Wrenches, of which the following is a specification.
This invention relates to adjustable wrenches of the type in which one jaw movable on a prismatic guide is secured to the main body of the wrench by frictional engagement. I
The object of the invention is to provide a device of this kind afl'ording complete security against sliding motion of the movable jaw independently of the pressure exerted and without necessitating any appreciable relative movement of the members for securing the movable jaw, it being possible to release said movable jaw, for adjusting the same in relation to the other stationary jaw, with a slight development of power.
To this end the invention consists, chiefly, in that the movable jaw is adapted to be secured to said prismatic guide by means of a clamping wedge so arranged as to beselflocking by a pressure actuating the movable jaw and tending to increase the distance between the stationary jaw and the movable one, the said wedge being self-releasing or adapted to be released by a slight power, when the pressure acts in opposite direction or if a pressure be applied directly to the wedge in the direction away from its edge.
An embodiment of the invention is illustrated in the accompanying drawing in which Figure 1 is a side View partly in sectlon of an adjustable wrench constructed according to the invention. Fig. 2 is a section on line A-B in Fig. 1, and Fig. 3 is a deta1l view of the releasing mechanism.
The wrench shown in the drawing is of the type the main body of which consists of a shank 1 whose one end is enlarged so as to form a head 2 carrying the stationary jaw 3 and provided with a prismatic guide 13 disposed obliquely in relation to the longitudinal direction of the shank and on which the other jaw 4 is movable lengthwise. To secure the movable jaw to the said prismatic guide in adjusted position a clamping wedge (3 is located in a recess 5 made in the head 2 below the jaw 4, the wedge being provided Specification of Letters Patent.
Patented A11 1920. Serial No 399,247.
on the side facing the jaw 4 with a wedgeformed rib 7 engaging a corresponding wedge-formed notch 8 in the lower side of the jaw a. On the opposite side the wedge has a plane surface 9 divided into two steps and engaging a corresponding plane sur face 10 of a member 11 secured to the bottom of recess 5. The step formed surface 9 of the wedge facilitates the arrangement of a spring 14 placed between the wedge and the member 11 and tending to keep the wedge in constant contact with the lower side of the jaw 41: and the surface 10 of the member 11. Secured to the outer reduced end of the wedge 6 is a small push-plate 12 by means of which the wedge may be moved inwardly and thus be released, the jaw 4 thereby being capable of being adjusted to the desired position in relation to the stationary jaw. The plate 12 being released, the spring returns the wedge into engagement withthe wedge formed notch of the jaw d and the surface 10. The angle of the wedge is so adjusted that the pressure of the spring can keep the jaw in the adjusted position without necessitating any great power for the release of the jaw. When, in using the wrench, the jaw 4 is exposed to a pressure tending to increase the distance be tween the jaws, the frictional engagement of the aw 4 with the wedge 6' will be the more powerful, the greater is the pressure, and consequently any movement of the jaw 4 by such a pressure is made impossible.
Having now particularly described and ascertained the nature of my said invention and in what manner the same is to be performed, I declare that what I claim is 1. An adjustable wrench comprising in combination a shank, a rigid jaw integral with said shank, said rigid jaw being formed with an oblique guideway, a movable jaw having a wedge-shaped recess and mounted to slide in said oblique guideway, a member rigidly attached to the rigid jaw and having a step formed surface inclined relatively to the direction of said guide-way, a movable wedge having a step formed contact surface bearing against said first-mentioned step formed surface, said wedge further on gagin the wedge-shaped recess.
2. in adjustable wrench comprising in combination a shank, a rigid jaw integral with said shank and formed with an oblique guide-Way, a movable jaw having a Wedgeshaped recess and mounted to slide in said oblique guide-way, a member rigidly at teched to the rigid jaw and having a step formed surface inclined relatively to the direction of said guide-Way, a spring-operated movable Wedge having a step formed contact surface bearing against said first mentioned step formed surface, said Wedge further engaging the wedge-shaped recess.
In testimony whereof I have signed my name.
GUNNAR ELIAS OASSEL.
US399247A 1920-07-27 1920-07-27 Adjustable wrench Expired - Lifetime US1389487A (en)

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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2653501A (en) * 1951-12-04 1953-09-29 Melmoth W Hunter Shank-grip slidable side jaw wrench
US2667096A (en) * 1952-01-12 1954-01-26 Anskjaer Emil Rasmus Friction type wedge-lock means for slidable side jaw wrenches
US2948175A (en) * 1958-11-12 1960-08-09 Teofil L Bonkowski Wedge-lock means for slidable side jaw wrenches
US4903556A (en) * 1988-12-23 1990-02-27 Tom Masbaum Quick-adjusting wrench
US5103697A (en) * 1991-02-26 1992-04-14 Masbaum Thomas P Quick adjust wrench with positive positioning
US5231904A (en) * 1991-02-26 1993-08-03 Masbaum Thomas P Two element quick adjust wrench
US20040177726A1 (en) * 2003-03-14 2004-09-16 Bergfeld William B. Adjustable self-locking wrench
US20040255726A1 (en) * 2003-05-29 2004-12-23 Kady Darren J. Spring locked wrench

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2653501A (en) * 1951-12-04 1953-09-29 Melmoth W Hunter Shank-grip slidable side jaw wrench
US2667096A (en) * 1952-01-12 1954-01-26 Anskjaer Emil Rasmus Friction type wedge-lock means for slidable side jaw wrenches
US2948175A (en) * 1958-11-12 1960-08-09 Teofil L Bonkowski Wedge-lock means for slidable side jaw wrenches
US4903556A (en) * 1988-12-23 1990-02-27 Tom Masbaum Quick-adjusting wrench
US5103697A (en) * 1991-02-26 1992-04-14 Masbaum Thomas P Quick adjust wrench with positive positioning
US5231904A (en) * 1991-02-26 1993-08-03 Masbaum Thomas P Two element quick adjust wrench
US20040177726A1 (en) * 2003-03-14 2004-09-16 Bergfeld William B. Adjustable self-locking wrench
US6848342B2 (en) * 2003-03-14 2005-02-01 Irwin Industrial Tool Company Adjustable self-locking wrench
US20040255726A1 (en) * 2003-05-29 2004-12-23 Kady Darren J. Spring locked wrench

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