US2722150A - Self-locking slidable side jaw wrench - Google Patents

Self-locking slidable side jaw wrench Download PDF

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Publication number
US2722150A
US2722150A US45993354A US2722150A US 2722150 A US2722150 A US 2722150A US 45993354 A US45993354 A US 45993354A US 2722150 A US2722150 A US 2722150A
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Prior art keywords
jaw
self
adjusting screw
wrench
adjustable
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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
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Inventor
Clarence R Green
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Clarence R Green
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B25HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25BTOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B13/00Spanners; Wrenches
    • B25B13/10Spanners; Wrenches with adjustable jaws
    • B25B13/12Spanners; Wrenches with adjustable jaws the jaws being slidable
    • B25B13/14Spanners; Wrenches with adjustable jaws the jaws being slidable by rack and pinion, worm or gear
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10STECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S81/00Tools
    • Y10S81/05Wrench scales and indicia

Description

Nov. 1, 1955 c. R. GREEN 2,722,150

SELF-LOCKING SLIDABLE SIDE JAW WRENCH Filed Oct. 4, 1954 w C/OrenceRGre IN V E R.

United States Patent Y v 2,722,150 SELF-LOCKING SLIDABLE SIDEJAW WRENCH I Clarence R. Green, Paso Robles, Calif.

Application October 4, 1954, Serial No. 459,933

1 Claim. (Cl. 81-165) This invention relates in general to hand tools and more specifically to new and useful improvements of an adjustable end wrench.

The everpresent problem in using adjustable end wrenches has been one of keeping the adjustable jaw at a preset point while in operation. This makes it necessary for the operator to maintain a constant pressure on the adjusting screw, which is very unhandy, or adjust the jaw after each turn of the wrench. The adjustable jaw also tends to close in or open up every time the operator lays it down.

Therefore, the primary object of this invention is to provide an improved method of locking the adjustable jaw in any desired position necessary.

Another object of this invention is to provide a method of locking the adjustable jaw in any desired position without the necessity of the operator making any movements or adjustments other than those used in the operation of other adjustable wrenches.

Still another object of this invention is to provide an easily read scale or marking on the jaw and frame so,

at a glance, the operator may set the adjustable jaw to a required size without first trying it on a nut or bolt head, as the case may be. 3

These, together with other objects and advantages which will become subsequently apparent reside in the details of construction and operation as more fully hereinafter described and claimed, reference being had to the accompanying drawings forming a part hereof, wherein like numerals refer to like parts throughout, and in which:

Figure 1 is a vertical view of the self-locking adjustable wrench, showing the movable jaw set for a three-quarter inch nut or bolt head;

Figure 2 is an enlarged, fragmentary sectional view of the jaws and adjusting screw of the wrench; and

Figure 3 is an enlarged, fragmentary sectional view taken substantially along section line 3-3 of Figure 2 showing the engagement of one of the steel balls in one of the grooves of the adjusting screw.

Referring now to the drawings in detail, the wrench is referred to in general by the reference numeral having a suitable handle 12 at its lower end and a fixed jaw 14 at its upper end. Disposed at an intermediate portion and nearer the fixed jaw 14 there is an enlarged portion 16 which is suitably grooved, dove-tailed or the like to slidably receive an adjustable jaw 18.

As is best seen in Figure 2, the enlarged portion 16 has an appropriate sized aperture 20 extending therethrough in order to receive an adjusting screw 22 which is rotatably attached and its axis centrally located within the aperture 20 by means of pin 24, the pin 24 being parallel to the groove or dove-tail in the enlarged portion 16. The adjusting screw 22 has on its outer surface a helical raised portion 26 having along its outer surface, as is best seen in Figure 3, a plurality of grooves 28 which are parallel to the axis of the adjusting screw 22.

As is best seen in Figure 3, the adjustable jaw 18 has formed along the lower portion 30 thereof, a tongue 32 2,722,150 Patented 2 ,t which is slidably received and retained in position by ears 34 and 36 of the groove or dove-tail located in themlarged portion 16. The tongue 32 has disposed along the lower edge thereof a plurality of thread segments 38 that slidably engage the helical portion 26 of the adjusting screw 22. Located at the root of two of the thread segments 38 are two holes 40 that house two spring loaded balls 42 so spaced as to have one or the other in constant engagement with one of the grooves 28 on the helical portion 26.

As is best seen in Figure 3, the spring loaded ball 42 acts in one of the grooves 28 as a stop for the screw 22, thereby making the upper jaw 18, thru the thread segments 38, immovable unless definite rotatable thumb or finger pressure is applied to the screw 22.

As is best seen in Figure 1, the enlarged portion 16 has clearly stamped, engraved or otherwise suitably formed on one side thereof a scale 44 which is divided into fractional or decimal parts of an inch as preferred by the buyer. The movable jaw 18 has also suitably formed on the same side, a reference mark 46 which will designate, within reasonable limits, when aligned with the scale 44, the size of the jaw opening of the wrench. As an example, when the reference mark 46 is aligned with the one-half inch line on the scale 44, the jaws will then be open one-half inch.

In operation, the adjusting screw 22 is rotated by thumb or finger pressure until the reference mark 46 is aligned with the desired dimension line on the scale 44. One of the spring loaded balls 42 will then engage one of the grooves 28, located upon the outer surface of the helical raised portion 26, thus ofiering a resistance to any further rotation of the screw 22 while the wrench is being used to remove or tighten a nut or bolt. It should be noted from Figure 2, that the spring loaded balls 42 are so located, with relation to the adjusting screw 22, that either one or the other is in constant contact with the raised porion 26, thus insuring immobility of the movable jaw 18 until the operator desires to move it.

From the foregoing, the construction and operation of the device will be readily understood and further explanation is believed to be unnecessary. However, since numerous modifications and changes will readily occur to those skilled in the art, it is not desired to limit the invention to the exact construction shown and described, and accordingly, all suitable modifications and equivalents may be resorted to, falling within the scope of the appended claim.

What is claimed as new is as follows:

An adjustable wrench comprising a handle, a fixed jaw on said handle, a movable jaw slidably mounted on said handle in interengaging relation in opposition to the fixed jaw, a plurality of thread segments on said movable jaw, said handle having an aperture therein adjacent the fixed jaw, a rotatable adjusting screw mounted in said aperture, said aperture providing communication to the thread segments, a spiral raised portion on said adjusting screw in engagement with said thread segments for moving the movable jaw when the adjusting screw is rotated, and independent means on said movable jaw for frictionally engaging said adjusting screw and releasably retaining the adjusting screw and movable jaw in any adjusted position, said retaining means including a plurality of spring urged ball members positioned between said thread segments for engaging the periphery of said raised portion, said raised portion having a plurality of grooves in the periphery thereof for engagement by said ball members, said ball members being spaced apart a distance less than the length of the adjusting screw for continuous contact therewith, said movable jaw having a blind bore movably receiving each of said ball member, and a compression coil spring positioned between the ball member ,and the bottom of the bore for urging the ball member against the periphery of the raised portion of the adjusting s'rew thereby causihg'the mevable jaw to be urged vi/ny from the adjusting screw thus increasing the friction beee t e inte e gaging sut acesof he mo able jaw and he han e f9: ret ining he mov ble jaw in ali ent it th s a ionary j w References Cited in the file of this patent UNITED STATES PATENTS McClurkin Feb. 1, 1921 Keller Feb. 13, 1923 Herby June 24, 1924 Gumprecht Oct. 21, 1924 Vallone Oct. 1, 1929 Anderson Feb. 23, 1932 McEnrol May 13, 1952

US2722150A 1954-10-04 1954-10-04 Self-locking slidable side jaw wrench Expired - Lifetime US2722150A (en)

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US2722150A US2722150A (en) 1954-10-04 1954-10-04 Self-locking slidable side jaw wrench

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Cited By (28)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3905256A (en) * 1974-04-15 1975-09-16 Donald E Foley Adjustable jaw ratchet type drive tool
US3948120A (en) * 1975-01-08 1976-04-06 Hancock Paul D Wrench
US4333366A (en) * 1980-03-21 1982-06-08 Encor Limited Crescent wrench operating indicator
EP0464016A1 (en) * 1990-06-29 1992-01-02 Ab Bahco Verktyg A combination tool
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
US5297459A (en) * 1993-04-12 1994-03-29 Thomas Stojanowski Ratcheting adjustable wrench
US5331868A (en) * 1993-08-02 1994-07-26 Thomas Elmore Crescent wrench
US5697166A (en) * 1995-09-15 1997-12-16 Hommel; Scott David Measuring accessory for adjustable wrench
US5862722A (en) * 1996-09-20 1999-01-26 Cislo; Casimer J. Adjustable wrench
US6098506A (en) * 1999-01-20 2000-08-08 Clegg; Richard R. Adjustable incline wrench
US6125724A (en) * 1999-04-02 2000-10-03 Larry K. Murphy English/metric adjustable wrench with dial
US6186034B1 (en) * 1998-12-11 2001-02-13 Dan E. Lamons Flex handle adjustable wrench
US6382056B1 (en) * 2001-02-13 2002-05-07 Arthur Wu Means for stabilizing movement of the jaw in an adjustable wrench
US6470773B1 (en) * 2001-10-02 2002-10-29 Arthur Wu Adjustable wrench of eliminating the clearance of adjusting jaw
US20040144215A1 (en) * 2003-01-27 2004-07-29 Picone John A. Adjustable wrench with preset stops
US20040255726A1 (en) * 2003-05-29 2004-12-23 Kady Darren J. Spring locked wrench
US20050076747A1 (en) * 2003-10-09 2005-04-14 Chih-Ching Hsien Adjustable spanner
US20050178248A1 (en) * 2004-02-18 2005-08-18 Chih-Ching Hsien Wrench with display device
US20050199106A1 (en) * 2004-03-09 2005-09-15 John Tedrick Wrench, adjustable with locking pin
US7284465B1 (en) * 2006-06-08 2007-10-23 Jing-Ru Chen Locating structure of an adjustable open wrench
US20090288308A1 (en) * 2008-05-21 2009-11-26 Chih-Ching Hsieh Hand tool with a scale
US20100199814A1 (en) * 2009-02-11 2010-08-12 Test Rite Products Corporation Ergonomic wrench
JP4944271B1 (en) * 2011-10-12 2012-05-30 泰嗣 大野 monkey wrench
US8191446B1 (en) * 2009-09-30 2012-06-05 Sherri Brad J Adjustable set wrench
US20130145907A1 (en) * 2010-04-30 2013-06-13 Lobtex Co., Ltd. Adjustable Wrench
US8695462B1 (en) 2010-10-07 2014-04-15 Jist Unlimited, LLC Adjustable wrench
US20160349030A1 (en) * 2015-06-01 2016-12-01 Wesley Keith Johnson Nut and Stud Size Gauge

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1367408A (en) * 1921-02-01 Wrench
US1444793A (en) * 1922-02-23 1923-02-13 Keller Thomas Wrench
US1498656A (en) * 1922-12-11 1924-06-24 Herby Frederick Charles Wrench
US1512846A (en) * 1922-04-17 1924-10-21 Frank O Gumprecht Wrench
US1729640A (en) * 1925-08-11 1929-10-01 Barcalo Mfg Co Wrench
US1846380A (en) * 1930-10-25 1932-02-23 Anderson Perry Wrench
US2596266A (en) * 1949-12-08 1952-05-13 Alfred Jarmann Jr Slidable side jaw wrench

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1367408A (en) * 1921-02-01 Wrench
US1444793A (en) * 1922-02-23 1923-02-13 Keller Thomas Wrench
US1512846A (en) * 1922-04-17 1924-10-21 Frank O Gumprecht Wrench
US1498656A (en) * 1922-12-11 1924-06-24 Herby Frederick Charles Wrench
US1729640A (en) * 1925-08-11 1929-10-01 Barcalo Mfg Co Wrench
US1846380A (en) * 1930-10-25 1932-02-23 Anderson Perry Wrench
US2596266A (en) * 1949-12-08 1952-05-13 Alfred Jarmann Jr Slidable side jaw wrench

Cited By (33)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3905256A (en) * 1974-04-15 1975-09-16 Donald E Foley Adjustable jaw ratchet type drive tool
US3948120A (en) * 1975-01-08 1976-04-06 Hancock Paul D Wrench
US4333366A (en) * 1980-03-21 1982-06-08 Encor Limited Crescent wrench operating indicator
EP0464016A1 (en) * 1990-06-29 1992-01-02 Ab Bahco Verktyg A combination tool
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
US5297459A (en) * 1993-04-12 1994-03-29 Thomas Stojanowski Ratcheting adjustable wrench
US5331868A (en) * 1993-08-02 1994-07-26 Thomas Elmore Crescent wrench
US5697166A (en) * 1995-09-15 1997-12-16 Hommel; Scott David Measuring accessory for adjustable wrench
US5862722A (en) * 1996-09-20 1999-01-26 Cislo; Casimer J. Adjustable wrench
US6186034B1 (en) * 1998-12-11 2001-02-13 Dan E. Lamons Flex handle adjustable wrench
US6098506A (en) * 1999-01-20 2000-08-08 Clegg; Richard R. Adjustable incline wrench
US6125724A (en) * 1999-04-02 2000-10-03 Larry K. Murphy English/metric adjustable wrench with dial
US6382056B1 (en) * 2001-02-13 2002-05-07 Arthur Wu Means for stabilizing movement of the jaw in an adjustable wrench
US6470773B1 (en) * 2001-10-02 2002-10-29 Arthur Wu Adjustable wrench of eliminating the clearance of adjusting jaw
US6966242B2 (en) * 2003-01-27 2005-11-22 Picone John A Adjustable wrench with preset stops
US20040144215A1 (en) * 2003-01-27 2004-07-29 Picone John A. Adjustable wrench with preset stops
US20060060036A1 (en) * 2003-01-27 2006-03-23 Picone John A Adjustable wrench with preset stops
US20040255726A1 (en) * 2003-05-29 2004-12-23 Kady Darren J. Spring locked wrench
US20050076747A1 (en) * 2003-10-09 2005-04-14 Chih-Ching Hsien Adjustable spanner
US7240591B2 (en) * 2003-10-09 2007-07-10 Chih-Ching Hsien Adjustable spanner
US20050178248A1 (en) * 2004-02-18 2005-08-18 Chih-Ching Hsien Wrench with display device
US7013763B2 (en) * 2004-02-18 2006-03-21 Chih-Ching Hsien Wrench with display device
US20050199106A1 (en) * 2004-03-09 2005-09-15 John Tedrick Wrench, adjustable with locking pin
US6951157B1 (en) * 2004-03-09 2005-10-04 John Tedrick Wrench, adjustable with locking pin
US7284465B1 (en) * 2006-06-08 2007-10-23 Jing-Ru Chen Locating structure of an adjustable open wrench
US20090288308A1 (en) * 2008-05-21 2009-11-26 Chih-Ching Hsieh Hand tool with a scale
US20100199814A1 (en) * 2009-02-11 2010-08-12 Test Rite Products Corporation Ergonomic wrench
US8191446B1 (en) * 2009-09-30 2012-06-05 Sherri Brad J Adjustable set wrench
US20130145907A1 (en) * 2010-04-30 2013-06-13 Lobtex Co., Ltd. Adjustable Wrench
US8695462B1 (en) 2010-10-07 2014-04-15 Jist Unlimited, LLC Adjustable wrench
JP4944271B1 (en) * 2011-10-12 2012-05-30 泰嗣 大野 monkey wrench
US20160349030A1 (en) * 2015-06-01 2016-12-01 Wesley Keith Johnson Nut and Stud Size Gauge

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